section 03000-1 - tech specs 05-29-2015
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SECTION 03000 - TECHNICAL REQUIREMENTS
SUPPLEMENTAL TECHNICAL SPECIFICATIONS
SECTION 03000-1 NE 28TH AVENUE DRA
COMPONENT PROJECT - PART 1
SECTION 3100-1 GENERAL
1. This section covers supplemental technical specifications not covered in the
standard specifications.
2. The City of Ocala "General Conditions for Construction", Volume I and "Standard
Specifications for Water and Sewer Construction", Volume III, along with FDOT
Standard Specifications for Road and Bridge Construction, latest edition, shall
govern the execution of this Component Project - Part 1 as specified and
amended by these Contract Documents.
3. Valve boxes used for locate wire terminals (material specification 479-03-06-02)
shall have lid furnished with the word "STORM" on the cover to indicate the use
of the locate wire system for stormwater.
4. Provided hereinafter is the Geotechnical Report for the project site as provided
by Geo-Technologies Inc (Geo-Tech) dated April 23, 2014, Project No. 13-
4583.04.2.
5. Provided hereinafter is the Geotechnical Report for the project site as provided
by Geo-Technologies, Inc. (Geo-Tech) dated April 8, 2013, Project No. 13-
4583.04.1
6. Provided hereinafter is the Individual Permit No. 111331-4 for the NE 28th
Avenue DRA as issued by the St. Johns River Water Management District dated
November 26, 2014 for the construction of a stormwater management system as
described in these project documents.
SECTION 3200-1 CONCRETE
1. General
Provide labor and materials necessary to install cast-in-place concrete complete.
2. Submittals
Submit concrete mix design with details of aggregate and admixtures used.
Certified test results must be submitted for each mix design used. Submit
concrete tickets from concrete supplier after every concrete placement.
3. Concrete Mix Design
Concrete compressive strength, F'C: 4,000 psi at 28 days, pipe encasements,
thrust blocks, supports. Concrete compressive strength, F'C: 3,000 psi at 28 days,
sidewalks, driveways.
Proportions: Water-Cement Ratio - ratio will control the amount of total water
added to concrete. Maximum 0.44 by weight.
Admixtures: Air Content - range of two (2) percent to four (4) percent. Test in
accordance with ASTM C231.
Slump Range at Site: Three (3) inches to five (5) inches.
4. Proportions of Mix
A. Mixture Proportioning, Normal Weight Concrete
Trial batches shall contain materials proposed to be used in the project.
Trial mixtures having proportions, consistencies, and air content suitable
for the work shall be made based on methodology described in ACI 211.1,
using at least three (3) different water-cement ratios. Trial mixes shall be
proportioned to produce concrete strengths specified. In the case where
ground iron blast-furnace slag is used, the weight of the slag will be
substituted in the equations for the term P which is used to denote the
weight of pozzolan. Trial mixtures shall be designed for maximum
permitted slump and air content. The temperature of concrete in each
trial batch shall be reported. For each water-cement ratio at least three
(3)test cylinders for each test age shall be made and cured in accordance
with ASTM C192. They shall be tested at seven (7) and 28 days in
accordance with ASTM C39. From these test results a curve shall be
plotted showing the relationship between water-cement ratio and
strength.
B. Average Strength
In meeting the strength requirements specified, the selected mixture
proportion shall produce an average compressive strength exceeding the
specified strength by the amount indicated below. Where a concrete
production facility has test records, a standard deviation shall be
established. Test records from which a standard deviation is calculated
shall represent materials, quality control procedures, and conditions
similar to those expected; shall represent concrete produced to meet a
specified strength or strengths within 1,000 psi of that specified for
proposed work; and shall consist of at least 30 consecutive tests. A
strength test shall be the average of the strengths of two (2) cylinders
made from the same sample of concrete and tested at 28 days or at
other test age designated for determination of the specified strength.
1. Required average compressive strength used as the basis for
selection of concrete proportions shall be the larger of the
specified strength plus the standard deviation multiplied by 1.34
or the specified strength plus the standard deviation multiplied by
2.33 minus 500.
2. Where a concrete production facility does not have test records
meeting the above requirements but does have a record based on
15 to 29 consecutive tests, a standard deviation may be
established as the product of the calculated standard deviation
and a modification factor from the following table:
(1) NUMBER OF TESTS MODIFICATION FACTOR FOR
STANDARD DEVIATION
Less than 15 See Note
15 1.16
20 1.08
25 1.03
30 or more 1.00
(1) Interpolate for intermediate numbers of tests.
NOTE: When a concrete production facility does not have field
strength test records for calculation of standard deviation or the
number of tests is less than 15, the required average strength shall
be:
The specified strength plus 1,200 for specified strengths of 3,000 to
5,000 psi.
5. Sampling and Testing
Sampling and testing of concrete is the responsibility of the City. All other
sampling and testing including cement, aggregate, admixture and curing
compound testing shall be the responsibility of the Contractor. The Contractor
shall cooperate with the City and/or his representatives in regard to all sampling
and testing activities.
A. Aggregates
Aggregates for normal weight concrete shall be sampled and tested in
accordance with ASTM C33. Lightweight aggregate shall be sampled
and tested in accordance with
ASTM C330. Gradation tests shall be performed on the first day and
every other day thereafter during concrete construction.
B. Sampling of Concrete
Samples of concrete for air, slump, unit weight, and strength tests shall
be taken in accordance with ASTM C172.
1. Air Content
Tests for air content shall be performed in accordance with ASTM
C173 or C231. A minimum of one (1) test per day shall be
conducted.
2. Slump
At least two (2) slump tests shall be made on randomly selected
batches of each mixture of concrete during each day’s concrete
placement. Tests shall be performed in accordance with ASTM
C143.
3. Unit Weight
Tests for unit weight of lightweight concrete shall be performed in
accordance with ASTM C567. Tests shall be conducted on each
batch sampled for strength tests and on random samples taken
for each 75 cubic yards of concrete placed. The unit weight of
fresh concrete shall not vary more than two (2) pounds per cubic
foot from the corresponding unit weight of the approved
proportions.
C. Evaluation and Acceptance of Concrete
1. Frequency of Testing
Samples for strength tests of each class of concrete placed each
day shall be taken not less than once a day, nor less than once for
each 150 cubic yards of concrete, nor less than once for each
5,000 square feet of surface area for slabs or walls. If this
sampling frequency results in less than five (5) strength tests for a
given class of concrete, tests shall be made from at least five (5)
randomly selected trucks or from each truck if fewer than five
truck loads are used. Field cured specimens for determining form
removal time or when a structure may be put in service shall be
made in numbers directed to check the adequacy of curing and
protection of concrete in the structure. The specimens shall be
removed from the molds at the age of 24 hours and shall be cured
and protected, in-so-far as practicable, in the same manner as
that given to the portion of the structure the samples represent.
2. Testing Procedures
Cylinders and beams for acceptance tests shall be molded and
cured in accordance with ASTM C31. Cylinders shall be tested in
accordance with ASTM C39 and beams shall be tested in
accordance with ASTM C78. A strength test shall be the average
of the strengths of two (2) cylinders made from the same sample
of concrete and tested at 28 days or at another specified test age.
3. Evaluation of Results
Concrete specified on the basis of compressive strength will be
considered satisfactory if the averages of all sets of three (3)
consecutive strength test results equal or exceed the specified
strength and no individual strength test result falls below the
required strength by more than 500 pounds per square inch.
4. Investigation of Low-Strength Test Results
When any strength test of standard-cured test cylinder falls below
the specified strength requirement by more than 500 pounds per
square inch, or if tests of field-cured cylinders indicate
deficiencies in protection and curing, steps shall be taken to
assure that load-carrying capacity of the structure is not
jeopardized. Non-destructive testing in accordance with ASTM
C597, C803, or C805 may be permitted by the Engineer to
determine the relative strengths at various locations in the
structure as an aid in evaluating concrete strength in place or for
selecting areas to be cored. Such tests, unless properly calibrated
and correlated with other test data, shall not be used as a basis
for acceptance or rejection. When strength of concrete in place is
considered potentially deficient, cores shall be obtained and
tested in accordance with ASTM C42. At least three (3)
representative cores shall be taken from each member or area of
concrete in place that is considered potentially deficient. The
location of cores shall be determined by the Engineer to least
impair the strength of the structure. If the concrete in the
structure will be dry under service conditions, the cores shall be
air dried (60° to 80°F, relative humidity less than 60%) for seven
days before testing and shall be tested dry. If the concrete in the
structure will be more than superficially wet under service
conditions, the cores shall be tested after moisture conditioning in
accordance with ASTM C42. Concrete in the area represented by
the core testing will be considered adequate if the average
strength of the cores is equal to or at least 85% of the specified
strength requirement and if no single core is less than 75% of the
specified strength requirement. If the core tests are inconclusive
or impractical to obtain, or if structural analysis does not confirm
the safety of the structure, load tests may be directed by the
Engineer in accordance with the requirements of ACI 318.
Concrete work evaluated by structural analysis or by results of a
load test and found deficient shall be corrected in a manner
satisfactory to the Engineer. All investigations, testing, load tests,
and correction of deficiencies shall be approved by the Engineer
and shall be performed at the expense of the Contractor.
6. Storage of Materials
Cement and pozzolan shall be stored in weather tight buildings, bins, or silos,
which will exclude moisture and contaminants. Aggregate stockpiles shall be
arranged and used in a manner to avoid excessive segregation and to prevent
contamination with other materials or with other sizes of aggregates.
Reinforcing bars and accessories shall be stored above the ground on platforms,
skids or other supports. Other materials shall be stored in such a manner as to
avoid contamination and deterioration. Admixtures which have been in storage
at the project site for longer than six (6) months or which have been subjected to
freezing shall not be used unless retested and proven to meet the specified
requirements.
7. Admixtures
Admixtures shall conform to the following:
Accelerating Admixture:
Air-Entraining Admixture:
Flowing Concrete Admixture:
Water-Reducing or Retarding
Admixture:
ASTM C494, Type C or E; or calcium chloride
conforming to D98.
ASTM C260
ASTM C1017, Type 1 or 2
ASTM C494, Type A, B, D, F, or G
8. Aggregates
A. Abrasive Aggregates
Fifty-five percent, minimum, aluminum oxide or silicon-dioxide abrasive
ceramically bonded together to form a homogenous material sufficiently
porous to provide a good bond with portland paste; or factory-graded
emery aggregate consisting of not less than 45% aluminum oxide and
25% ferric oxide. The aggregate shall be well graded from particles
retained on the No. 30 sieve to particles passing the No. 8 sieve.
B. Normal Weight Aggregate
ASTM C33. Grading requirement for coarse aggregate shall conform to
size number 57.
9. Cementitious Materials
Cementitious materials shall each be of one type and from one source when
used in concrete which will have surfaces exposed in the finished structure.
Cementitious materials shall conform to ASTM C150, Type I or II.
10. Curing Materials
Curing materials shall conform to the following:
Impervious Sheets: ASTM C171, type optional, except that polyethylene film, if
used, shall be white opaque.
Membrane-Forming Compounds: ASTM C309, Type 1-D, Class A and B.
11. Embedded Items
Embedded items shall be of the size indicated and stainless steel unless
otherwise noted, or as needed for the application.
12. Non-Shrink Grout
Non-shrink grout shall conform to CRF C621 and shall be a formulation suitable
for the application.
13. Vapor Barrier
Vapor barrier shall be polyethylene sheeting with a minimum thickness of six (6)
mils or other equivalent material having a vapor permeance rating not exceeding
0.5 perms as determined in accordance with ASTM E96.
14. Water
Water shall be potable, except that non-potable water may be used if it
produces mortar cubes having seven (7) and 28 day strengths at least 90% of the
strength of similar specimens made with water from a municipal supply. The
strength comparison shall be made on mortars, identical except for mixing water,
prepared and tested in accordance with ASTM C109. Water for curing shall not
contain any substance injurious to concrete, or which causes staining.
15. Forms
A. Forms shall be used for all concrete masonry, including footings. Forms
shall be so constructed and placed that the resulting concrete will be of the
shape, lines, dimensions, appearance, and to the elevations indicated on the
drawings.
B. Forms for all exposed exterior and interior concrete walls shall be
plywood with "A" veneer exterior on casting side. Rustications shall be at the
location and to the details shown on the Drawings. Moldings for chamfers and
rustications shall be milled and planed smooth.
C. Forms shall be made of wood, metal or other approved material. Wood
forms shall be constructed of sound lumber or plywood of suitable dimensions,
free from knotholes and loose knots; where used for exposed surfaces, boards
shall be dressed and matched. Plywood shall be sanded smooth and fitted with
tight joints between panels. Metal forms shall be of an approved type for the
class of work involved and of the thickness and design required for rigid
construction.
D. Edges of all form panels in contact with concrete shall be flush within
1/32" and forms for plans surfaces shall be such that the concrete will be planed
within 1/16" in four (4) feet. Forms shall be tight to prevent the passage of
mortar and water and grout.
E. Forms for walls shall have removable panels at the bottom for cleaning,
inspection, and scrubbing-in of bonding paste. Forms for walls of considerable
height shall be arranged with tremies and hoppers for placing concrete in a
manner that will prevent segregation and accumulation of hardened concrete on
the forms or reinforcements above the fresh concrete.
F. Molding or bevels shall be placed to produce a three (3) quarter inch
chamfer on all exposed projecting corners, unless otherwise shown on the
drawings. Similar chamfer strips shall be provided at horizontal and vertical
extremities of all wall placements to produce "clean" separation between
successive placements as called for on the plans.
G. Forms shall be sufficiently rigid to withstand vibration, to prevent
displacement or sagging between supports, and constructed so the concrete will
not be damaged by their removal. The Contractor shall be entirely responsible
for their adequacy.
H. Forms, including new pre-oiled forms, shall be oiled before reinforcement
is placed, with an approved non-staining oil or liquid for coating having a
non-paraffin base.
I. Before form material is re-used, all surfaces in contact with concrete shall
be thoroughly cleaned and all damaged places repaired, all projecting nails
withdrawn, all protrusions smoothed and in the case of wood, forms pre-oiled.
J. Form ties encased in concrete shall be designed so that after removal of
the projecting part, no metal shall be within 1 1/2" of the face of the concrete.
That part of the tie to be removed shall be at least one (1) inch diameter or be
provided with wood or metal cone at least one (1) foot in diameter and 1 1/2"
LONG. Form ties in concrete exposed to view shall be the cone-washer type
equal to the Richmond "Tyscru". Ties for water-holding structures shall have an
integral water stop that is tightly fitted to the tie at midpoint. Through bolts or
common wire shall not be used for form ties.
16. Preparation of Surfaces
Surfaces to receive concrete shall be clean and free from frost, ice, mud, and
water. Conduit and other similar items shall be in place and clean of any
deleterious substance.
A. Foundations: Flowing water shall be diverted without washing over
freshly deposited concrete. Rock foundations shall be cleaned by high velocity
air-water jets, sandblasting, or other approved methods. Debris and loose, semi-
detached or unsound fragments shall be removed. Rock surfaces shall be moist
but without free water when concrete is placed. Semiporous subgrades for
foundations and footing shall be damp when concrete is placed. Pervious
subgrades shall be sealed by blending impervious material with the top six (6)
inches of the in-place pervious material or by covering with an impervious
membrane.
B. Vapor Barrier: Subgrades for slabs under buildings shall be covered with
a vapor barrier. Vapor barrier edges shall be lapped at least four (4) inches and
ends shall be lapped not less than six (6) inches. Patches and lapped joints shall
be sealed with pressure- sensitive adhesive or tape not less than two (2) inches
wide and compatible with the membrane.
C. Preparation of Previously Placed Concrete: Concrete surfaces to which
other concrete is to be bonded shall be roughened in an approved manner that
will expose sound aggregate uniformly without damaging the concrete. Laitance
and loose particles shall be removed. Surfaces shall be moist but without free
water when concrete is placed.
17. Installation of Embedded Items
Embedded items shall be free from oil, loose scale or rust, and paint. Embedded
items shall be installed at the locations indicated and required to serve the
intended purpose. Voids in sleeves, slots and inserts shall be filled with readily
removable material to prevent the entry of concrete.
18. Batching, Mixing, and Transporting Concrete
Ready-mixed concrete shall be batched, mixed and transported in accordance
with ASTM C94, except as otherwise specified. Truck mixers, agitators, and non-
agitating units shall comply with the TMMB "Truck Mixer and Agitator
Standards". Plant equipment and facilities shall conform to NRMCA
"Certification of Ready Mixed Concrete Production Facilities." Site-mixed
concrete shall be mixed in accordance with ACI 301. On-site plant shall conform
to the requirements of the Concrete Plant Standards of the Concrete Plan
Manufacturers Bureau.
A. Admixtures: Admixtures shall be batched within an accuracy of three
percent (3%). Where two or more admixtures are used in the same batch, they
shall be batched separately and must be compatible. Retarding admixture shall
be added within one minute after addition of water is complete or in the first
quarter of the required mixing time, whichever is first. Superplasticizing
admixtures shall be added as recommended by manufacturer. Concrete that
shows evidence of total collapse or segregation caused by the use of admixture
shall be removed from the site.
B. Control of Mixing Water: No water from the truck system or elsewhere
shall be added after the initial introduction of mixing water for the batch except
when on arrival at the job site, the slump of the concrete is less than that
specified. Water added to bring the slump within the specified range shall not
change the total water in the concrete to a point that the approved water-
cement ratio is exceeded. The drum shall be turned an additional 30 revolutions,
or more if necessary, until the added water is uniformly mixed into the concrete.
Water shall not be added to the batch at any later time.
19. Conveying Concrete
Concrete shall be conveyed from mixer to forms as rapidly as possible and within
the time interval specified in paragraph 20.01 Concrete Placement by methods
which will prevent segregation or loss of ingredients.
A. Chutes: When concrete can be placed directly from a truck mixer or
other transporting equipment, chutes attached to this equipment may be used.
Separate chutes will not be permitted except when specifically approved.
B. Buckets: Bucket design shall be such that concrete of the required slump
can be readily discharged. Bucket gates shall be essentially grout tight when
closed. The bucket shall provide means for positive regulation of the amount
and rate of deposit of concrete in each dumping position.
C. Belt Conveyors: Belt conveyors may be used when approved. Belt
conveyors shall be designed for conveying concrete and shall be operated to
assure a uniform flow of concrete to the final place of deposit without
segregation or loss of mortar. Conveyors shall be provided with positive means
for preventing segregation of the concrete at transfer points and point of
placement.
D. Pumps: Concrete may be conveyed by positive displacement pumps
when approved. Pump shall be the piston or squeeze pressure type. Pipeline
shall be steel pipe or heavy duty flexible hose. Inside diameter of the pipe shall
be at least three times the maximum size of the coarse aggregate. Distance to
be pumped shall not exceed the limits recommended by the pump manufacturer.
Concrete shall be supplied to the pump continuously. When pumping is
completed, the concrete remaining in the pipeline shall be ejected without
contaminating the concrete in place. After each use, the equipment shall be
thoroughly cleaned. Flushing water shall be wasted outside the forms.
20. Concrete Placement
Mixed concrete which is transported in truck mixers or agitators or concrete
which is truck mixed, shall be discharged within 1 1/2 hours or before the drum
has revolved 300 revolutions, whichever comes first after the introduction of the
cement to the aggregates. These limitations may be waived by the Engineer if
the concrete is of such slump after the 1 1/2 hour time or 300 revolution limit
has been reached that it can be placed, without the addition of water to the
batch. When the concrete temperature exceeds 85°F, the time shall be reduced
to 45 minutes. Concrete shall be placed within 15 minutes after it has been
discharged from the truck.
A. Placing Operation: Concrete shall be handled from mixer to forms in a
continuous manner until the approved unit of operation is completed. Adequate
scaffolding, ramps, and walkways shall be provided so that personnel and
equipment are not supported by in-place reinforcement. Placing will not be
permitted when the sun, heat, wind, or limitations of facilities furnished by the
Contractor prevent proper consolidation, finishing and curing. Concrete shall be
deposited as close as possible to its final position in the forms, and there shall be
no vertical drop greater than eight (8) foot except where suitable equipment is
provided to prevent segregation and where specifically authorized. Depositing
of the concrete shall be so regulated that it will be effectively consolidated in
horizontal layers not more than 12" thick, except that all slabs shall be placed in
a single layer. Concrete to receive other construction shall be screeded to the
proper level to avoid excessive shimming or grouting.
B. Consolidation: Immediately after placing, each layer of concrete shall be
consolidated by internal vibrators, except for slabs four (4) inches or less. The
vibrators shall at all times be adequate in effectiveness and number to properly
consolidate the concrete; a spare vibrator shall be kept at the job site during all
concrete placing operations. The vibrators shall have a frequency of not less
than 8,000 vibrations per minute, and the head diameter and amplitude shall be
appropriate for the concrete mixture being placed. Vibrators shall be inserted
vertically at uniform spacing over the area of placement. The distance between
insertions shall be approximately 1 1/2 times the radius of action of the vibrator
so that the area being vibrated will overlap the adjacent just-vibrated area by a
few inches. The vibrator shall penetrate rapidly to the bottom of the layer and
at least six (6) inches into the preceding layer if there is such. Vibrator shall be
held stationary until the concrete is consolidated and then withdrawn slowly.
The use of form vibrators must be specifically approved. Vibrators shall not be
used to transport concrete within the forms. Slabs four (4) inches and less in
thickness shall be consolidated by properly designed vibrating screeds or other
approved technique. Excessive vibration of lightweight concrete resulting in
segregation and flotation of coarse aggregate shall be avoided.
C. Cold Weather Requirements: Special protection measures, approved by
the Engineer, shall be used if freezing temperatures are anticipated before the
expiration of the specified curing period. The ambient temperature of the air
where concrete is to be placed and the temperature of surfaces to receive
concrete shall be not less than 40°F. The temperature of the concrete when
placed shall be not less than 50°F, nor more than 75°F. Heating of the mixing
water or aggregates will be required to regulate the concrete placing
temperature. Materials entering the mixer shall be free from ice, snow, or
frozen lumps. Salt, chemicals or other materials shall not be incorporated in the
concrete to prevent freezing. Upon written approval, calcium chloride or
chemical admixture conforming to ASTM C494, Type C or E, may be used. The
amount of calcium chloride shall not exceed 2% by weight of the cement, and it
shall be batched in solution form. Calcium chloride shall not be used where
concrete will be in contact with aluminum of zinc-coated items, or where sulfate
resistant or prestressed concrete is specified.
21. Construction Joints
Construction joints shall be located as indicated or approved. Where concrete
work is interrupted by weather, end of work shift or other similar type of delay,
location and type of construction joint shall be subject to approval of the
Engineer. Unless otherwise indicated and except for slabs on grade, reinforcing
steel shall extend through construction joints. Construction joints in slabs on
grade shall be keyed or doweled as shown. Concrete columns, walls, or piers
shall be in place at least two (2) hours, or until the concrete is no longer plastic,
before placing concrete for beams, girders, or slabs thereon. In walls having
door or window openings, lifts shall terminate at such levels as to conform to
structural requirements or architectural details. Where horizontal construction
joints are required, a strip of one (1) inch square-edge lumer, bevelled and oiled
to facilitate removal, shall be tacked to the inside of the forms at the
construction joint. Concrete shall be placed to a point one (1) inch above the
underside of the strip. The strip shall be removed one (1) hour after the
concrete has been placed, and any irregularities in the joint line shall be leveled
off with a wood float, and all laitance shall be removed. Prior to placing
additional concrete, horizontal construction joints shall be prepared as specified
in paragraph PREPARATIONS OF SURFACES.
22. Finishing Concrete
A. Formed Surfaces
Repair of Surface Defects: For all finish classes (i.e. Classes A, B, C, and D),
surface defects shall be repaired within 24 hours after the removal of
forms. Honeycombed and other defective areas shall be cut back to solid
concrete or to a depth of not less than one (1) inch, whichever is greater.
Edges shall be cut perpendicular to the surface of the concrete. The
prepared areas shall be dampened and brush-coated with neat cement
grout. The repair shall be made using mortar consisting of not more than
1:2½, cement:sand. The mixed mortar shall be allowed to stand to stiffen
(approximately 45 minutes), during which time the mortar shall be
intermittently re-mixed without the addition of water. After the mortar
has attained the stiffest consistency that will permit placing, the patching
mix shall be thoroughly tamped into place by means approved by the
Engineer, and finished slightly higher than the surrounding surface. For
Class B finished surfaces the cement used in the patching mortar shall be
a blend of job cement and white cement proportioned to produce a
finished repair surface matching, after curing, the color of adjacent
surfaces. Holes left after the removal of form ties shall be cleaned and
filled with patching mortar. Holes lift by the removal of tie rods shall be
reamed and filled by dry-packing. Repaired surface shall be cured as
required for adjacent surfaces. The temperature of concrete, mortar
patching material, and ambient air shall be above 50° F white making
repairs and during the curing period. Concrete with defects which affect
the strength of the member or with excessive honeycombs will be
rejected, or the defects shall be corrected as directed.
B. Unformed Surfaces
1. Float Finish: Slabs to receive a steel towel finish and slabs, where
indicated shall be given a float finish. Screeding shall be followed
immediately by darbying or bull floating before bleeding water is present,
to bring the surface to a true, even plane. After the concrete has
stiffened to permit the operation and the water sheen has disappeared, it
shall be wood floated. Lightweight concrete of concrete that portrays
stickiness shall be finished with a magnesium float in lieu of a wood float,
and lift free of ridges and other projections.
2. Trowel Finish: Slabs, where indicated, shall be given a trowel finish
immediately following floating. Surfaces shall be troweled to produce
smooth, dense slabs free from blemishes including trowel marks. In lieu
of hand finishing, an approved power finishing machine may be used in
accordance with the directions of the machine manufacturer. A final
hard steel troweling shall be done by hand.
3. Broom Finish: After floating, slabs where indicated shall be lightly
troweled, and then broomed with a fiber-bristle brush in a direction
transverse to that of the main traffic.
C. Finish Schedule
Area Finish
Slabs and floors of structures or buildings
exposed to view. Slabs and floors of
below grade pits and vaults and
equipment pads.
Wall tops and exposed edges.
Exposed edges of slab and floors. Exterior
concrete slabs, drives, and sidewalks.
Light Broom
¾" Chamfer
Broom Finish
23. Curing and Protection
A. General: All concrete shall be cured by an approved method for the
period of time given below:
Concrete with Type I, II, IP or IS cement...........…........…...7 days
Concrete with Type I or Type II cement Blended with Pozzolan..7 days
Immediately after placement, concrete shall be protected from premature
drying extremes in temperatures, rapid temperature change, mechanical injury
and injury from rain and flowing water. Air and forms in contact with concrete
shall be maintained at a temperature above 50°F for the first three (3) days and
at a temperature above 32°F for the remainder of the specified curing period.
Exhaust fumes from combustion heating units shall be vented to the outside of
the enclosure and heaters and ducts shall be placed and directed so as not to
cause areas of overheating and drying of concrete surfaces or create fire hazards.
All materials and equipment needed for adequate curing and protection shall be
available and at the site prior to placing concrete. No fire or excessive heat shall
be permitted near or in direct contact with the concrete at any time. Curing
shall be accomplished by any of the following methods, or combination thereof,
as approved.
B. Moist Curing: Concrete to be moist-cured shall be maintained
continuously wet for the entire curing period. If water or curing materials used
stains or discolors concrete surfaces which are to be permanently exposed, the
concrete surfaces shall be cleaned. When wooden forms are left in place during
curing, they shall be kept wet at all times. If the forms are removed before the
end of the curing period, curing shall be carried out as on unformed surfaces,
using suitable materials. Horizontal surfaces shall be cured by ponding, by
covering with a 2" minimum thickness of continuously saturated sand, or by
covering with waterproof paper, polyethylene sheet, polyethylene-coated burlap
or saturated burlap.
C. Membrane Curing: Membrane curing shall not be used on surfaces that
are to receive any subsequent treatment depending on adhesion or bonding to
the concrete; except a styrene acrylate or chlorinated rubber compound meeting
ASTM C309, Class B requirements may be used for surfaces which are to be
painted or are to receive bituminous roofing or waterproofing, or floors that are
to receive adhesive applications of resilient flooring. The curing compound
selected shall be compatible with any subsequent paint, roofing, waterproofing
or flooring specified. Membrane curing compound shall not be used on surfaces
that are maintained at curing temperatures with free steam. Curing compound
shall be applied to formed surfaces immediately after the forms are removed
and prior to any patching or other surface treatment except the cleaning of loose
sand, mortar, and debris from the surface. Surfaces shall be thoroughly
moistened with water and the curing compound shall be applied to slab surfaces
as soon as the bleeding water has disappeared, with the tops of joints being
temporarily sealed to prevent entry of the compound and to prevent moisture
loss during the curing period. Compound shall be applied in a one-coat
continuous operation by mechanical spraying equipment, at a uniform coverage
in accordance with the manufacturer's printed instructions.
Concrete surfaces which have been subjected to rainfall with three hours after
curing compound has been applied shall be re-sprayed by the method and at the
coverage specified. On surfaces permanently exposed to view, the surface shall
be shaded from direct rays of the sun for the duration of the curing period.
Surfaces coated with curing compound shall be kept free of foot and vehicular
traffic, and from other sources of abrasion and contamination during the curing
period.
24.01 Concrete Reinforcing Steel
Contractor shall furnish and install, complete, reinforcing steel.
Submit detailed shop drawings for approval, showing placing drawing for steel
reinforcement, and bar bending details. Submit certified copy of mill test on
reinforcing steel showing physical and chemical analyses.
A. Deformed Billet-Steel Reinforcing Bars
ASTM A615, grade 60 reinforcing bars. Tie wires for reinforcement shall
be 16 gauge or heavier, black annealed wire.
B. Bar Supports and Spacers
Pre-cast concrete bar supports for reinforcing in concrete placed on
grade.
Plastic protected bar supports for beams and walls.
C. Installation
Bend all bars cold.
Notify the Engineer when reinforcing is ready for inspection and allow
sufficient time for this inspection prior to placing concrete.
Clean reinforcement of any loose mill scale, oil, or other contaminants.
Install in accordance with approved shop drawings.
Stagger splices in adjacent bars and tie every other intersection on mats
to hold bars at required spacing.
Minimum concrete cover of reinforcement shall be three (3) inches to
bottom reinforcing for slabs on grade, three (3) inches where concrete is
cast directly against earth, two (2) inches for all other reinforcing bars
including for beams and walls.
Lap splices for reinforcing steel shall be 48 bar diameters, but not less
than 12".
Unless permitted by the Engineer do not cut reinforcing bars in the field.
24. Concrete Patching
Patching material shall be certified by manufacturer, prior to use, that it contains
no corrosion causing chemicals.
Develop patching techniques and mixes with grout manufacturer. Dress surface
of patches that will remain exposed to view to match color and texture of
concrete.
Patching of concrete shall provide an acceptable and structurally sound surface
finish uniform in appearance until acceptable.
Patch all tie holes, defective concrete areas, honeycombed areas, and rock
pocket areas out to sound concrete with non-shrink, non-metallic grout. Use
approved bonding agent on horizontal patches prior to placing grout.
SECTION 3300-1 EARTHWORK
1. General
Provide labor and materials necessary to complete clearing, grubbing,
preparation of site, removal and disposal of all debris and unsuitable material,
excavation, trenching, backfill, preparation of subgrades, protection of adjacent
property, grading, and other work required to complete the earthwork indicated
on the plans.
2. Surface Preparation
All areas to be occupied by permanent construction or fill areas shall be cleared
of all trees, roots, brush, and other objectionable materials and debris. All
stumps shall be grubbed. Subgrades shall be cleaned and stripped of all surface
vegetation, sod, or organic topsoil. All waste materials shall be properly disposed
of by the CONTRACTOR.
3. Excavation
Excavation shall provide adequate working space and clearances for the work to
be performed. Excavation and trenching shall include the removal and handling
of materials excavated or removed.
4. Preservation of Trees
No trees shall be removed outside excavated or filled areas unless their removal
is authorized by the OWNER. Trees left standing shall be adequately protected
from damage by construction activities.
5. Dewatering
Dewatering equipment shall be provided to remove and dispose of all surface
water entering excavations, trenches, or other areas of the work.
6. Sheeting and Shoring
Excavations and trenches shall be supported or sloped as necessary to prevent
caving or sliding.
7. Drainage Maintenance
Install silt fences, hay bales, and other protective measures to prevent sediment
from washing out on roadways and existing drainage structures.
SECTION 3400-1 STRUCTURAL STEEL, MISCELLANEOUS METALS, AND GRATINGS
1. General
Furnish all labor, materials, equipment, and incidentals required to install
structural steel, aluminum items, anchors, fasteners, and other miscellaneous
metal items as shown on the drawings and specified herein.
2. Coordination
The work of this section shall be completely coordinated with the work of other
sections. Verify at the site, both the dimensions, and work of other trades
adjoining items of work in this section before fabrication and installation of items
herein specified.
Furnish to the pertinent trades, all items included under this section that are to
be built into the work of other sections.
3. Shop Drawings and Samples
Detailed fabrication and erection drawings, as provided for in the General
Conditions, showing sizes of members, methods of assembly, anchorage, and
connection to other members shall be submitted to ENGINEER for review before
fabrication.
Samples shall be submitted at the request of ENGINEER for concurrent review
with shop drawings.
4. Field Measurements
Field measurements shall be taken at the site prior to shop drawing submittal
and fabrication to verify or supplement indicated dimensions and to ensure
proper fitting of all items. Items rejected due to improper fit shall be replaced at
no additional cost to CITY.
5. Reference Specifications
Unless otherwise specified, materials shall conform to the following:
Aluminum (Extruded Shapes)
Aluminum (Extruded Pipe)
Aluminum Bars (Structural)
Stainless Steel Bolts, Fasteners
Stainless Steel Plate & Sheet, Wire
6063 T5 (Aluminum alloy)
6063 T6 (Aluminum alloy)
6061 T6 (Aluminum alloy)
AISI, Type 316
AISI, Type 316
6. Structural Steel
A. Materials shall be stainless steel as specified on the contract plans.
B. The design, fabrication, and erection of all structural stainless steel work shall
be subject to the latest editions of the published standards listed hereinafter
as they apply:
1. Latest editions of the American Institute of Steel Construction (AISC)
Specifications for the Design, Fabrication, and Erection of Structural
Steel for Buildings.
2. AISC Code of Standard Practice.
3. American Welding Society, Structural Welding Code, AWS D1.1.
4. Standard Building Code.
5. Local Codes and Regulations.
6. In case of a conflict between the referenced specification and the
project specification, the more stringent specification shall govern.
A. All welding in shop and field shall be performed by welders certified in
accordance with the provisions of American Welding Society D1.1.
Qualification test reports, bearing witness certification of an independent
laboratory or inspection service shall be submitted to ENGINEER. If a welder
is not engaged in the process of welding for a period of three (3) or more
months, welder shall be re-qualified before permitted to weld. Welding shall
be in accordance with the Structural Welding Requirements of the AWS D1.1-
84 and shall only be done where shown, or specified. Welding terms shall be
interpreted in accordance with AWS 24-79 Standard of the AWS. All welding
shall be done only by certified welders using approved welding procedures
and proper safety and welding equipment.
7. Aluminum Items
Aluminum items shall be sized to meet load and deflection requirements and
shall be Reliance Steel Products Company, McNichols, Diamondback, IKG
Industries, Alloy 6061-T6, or equal. Clamps and bolts used for attaching
aluminum to supporting members shall be stainless steel. Hardware shall be as
recommended by the manufacturer.
8. Anchors, Bolts, and Fastening Devices
A. Anchors, bolts, etc., shall be furnished as necessary for installation of the
work of this section. Unless otherwise indicated, use stainless steel for all
anchors, bolts, and other fastening devices.
B. Compound masonry anchors shall be of the type shown or required and shall
be equal to Star Slug in compounded masonry anchors manufactured by Star
Expansion Industries, equal by Phillips Drill Co., Rahlplug, or equal. Anchors
shall be minimum "two-unit" type.
C. Unless otherwise noted, expansion bolts shall be Wej-it "Ankr-Tite", Phillips
Drill Co., "Wedge Anchors", Hilti "Kwik-Bolt", or equal. When the length of
bolt is not called for on the Drawings, the length of bolt provided shall be
sufficient to place the wedge portion of the bolt a minimum of 1" behind the
reinforcing steel within the concrete. Material shall be as noted on the
Drawings. If not listed, use stainless steel.
D. All anchors, bolts, and fastening devices shall be stainless steel when
contacting aluminum.
9. Access Hatches
Access hatches shall be provided for all openings in the top slab for the wet well.
Each hatch shall include an access frame complete with hinge and slide bar
equipped covers. Each wet well hatch frame and cover shall be constructed of
aluminum and designed for a live load of 300 pounds per square foot. Hatches
shall be watertight. Hatch doors shall be of aluminum check plate with
reinforcing ribs to meet design criteria. All hardware shall be stainless steel.
Hatches shall be as manufactured by Halliday Products, Bilco Company, or equal.
10. Installation
A. Unless otherwise specified, structural stainless steel shall be fabricated in
accordance with the requirement of the AISC Specifications for the Design,
Fabrication, and Erection of Structural Steel for Buildings. All members shall
fit closely together and shall be straight and true, and the finished work shall
be free from burrs, bends, twists, and open joints. Materials for welding shall
be of the best available and in accordance with the recommendations of the
manufacturer of the material to be welded.
B. Structural Stainless Steel Installation Tolerances: Erect individual pieces so
that the deviation from plumb, level, and alignment shall not exceed 1:500. If
tolerances required by equipment manufacturers or referenced standards
are stricter than the above, then the strictest tolerance shall govern.
C. All miscellaneous metal work shall be formed true to detail, with clean,
straight, sharply defined profiles and smooth surfaces of uniform color and
texture and free from defects impairing strength of durability.
D. All stainless steel surfaces to come in contact with exposed concrete or
masonry shall receive protective coating of an approved heavy bitumastic
trowelling mastic applied in accordance with the manufacturer's instructions
prior to installation.
E. Where aluminum contacts a dissimilar metal, apply a heavy brush coat of
zinc-chromate primer followed by two coats of aluminum metal and masonry
paint to the dissimilar metal.
F. Where aluminum contacts masonry or concrete, apply a heavy coat of
approved alkali resistant paint to the masonry or concrete.
G. Assembly and installation shall be in accordance with manufacturer’s written
recommendations.
SECTION 3500-1 ALUMINUM FENCING
PART - 1 - GENERAL
1.01 SCOPE OF WORK:
Provide all labor, materials, equipment and supervision necessary to
complete the installation of:
Aluminum Fence;
Aluminum Gate(s);
Excavation and backfill of support posts;
Concrete anchoring of posts;
And other accessories and equipment
as specified herein or illustrated on the Drawings.
1.02 RELATED SECTIONS:
Section 03300 - Cast In Place Concrete
1.03 SCOPE:
Furnish all tools, equipment, materials, machinery, appurtenances and
labor unless otherwise specified to clear and grub for, excavate for, erect
and install fence posts, extra length posts, aluminum fence sections and
components, Aluminum gate(s), corner posts, hardware, and all
accessories along the lines shown on or reasonably inferred from the
drawings. If any items for a complete job are omitted or not shown, the
Contractor shall furnish and install the same without cost to the Owner.
1.04 REFERENCES:
A. Aluminum Association (AA)
(1) ASD-1 – Aluminum Standards and Design
(2) DAF-45 – Designation System for Aluminum Finishes
B. American Society for Testing and Materials (ASTM)
(1) ASTM A 276 – Standard Specification for Stainless Steel Bars and
Shapes.
(2) ASTM B 117 – Standard Practice for Operating Salt Spray (Fog)
Apparatus.
(3) ASTM B 221 – Specification for Aluminum-Alloy Extruded Bars,
Rods, Wire Shapes and Tubes.
(4) ASTM B 429 – Specification for Aluminum-Alloy Extruded
Structural Pipe and Tube.
(5) ASTM D 523 – Standard Test Method for Specular Gloss.
(6) ASTM D 1654 – Standard Test Method for Evaluation of Painted or
Coated Specimens Subjected to Corrosive Environments.
(7) ASTM D 2247 – Standard Practice for Testing Water Resistance of
Coatings in 100% Relative Humidity.
(8) ASTM D 2794 – Impact Resistance Test (Rating up to 160 inch lbs.)
(9) ASTM D 3359B – Adhesion by Tape Test (Rating = 5B)
(10) ASTM D 3363 – Film Hardness by Pencil Test (Rating = 2H)
(11) ASTM D 968 – Abrasion Resistance.
C. American Architectural Manufacturers Association (AAMA)
(1) AAMA 2605 – Voluntary Specification, Performance
Requirements and Test Procedures for Superior Performing
Organic Coatings on Aluminum Extrusions and Panels
(2) AAMA 2604 – Voluntary Specification, Performance
Requirements and Test Procedures for Pigmented Organic
Coatings on Aluminum Extrusions and Panels
1.05 SUBMITTALS:
A. Submit under requirements of Section 01 300.
B. Manufacturer's data sheets on each product to be used, including:
1. Preparation instructions and recommendations.
2. Storage and handling requirements and
recommendations.
3. Installation methods.
C. Shop Drawings: Indicate plan layout, spacing of components, post
foundation dimensions, hardware anchorage, gates, and schedule of
components.
D. Selection Samples: For each finish product specified, two complete
sets of color chips representing manufacturer's full range of available
colors and patterns.
E. Verification Samples: For each finish product specified, two samples,
minimum size 6 inches (150 mm) square; representing actual product,
color, and patterns.
1.06 QUALITY ASSURANCE:
A. Manufacturer Qualifications: Company specializing in manufacturing
Products specified in this section with minimum five years
documented experience.
1.07 DELIVERY, STORAGE, AND HANDLING:
A.Transport, handle, store, and protect products so that they are in
undamaged condition when installed.
B. Store products in manufacturer's unopened packaging to protect
prefinished aluminum surfaces until ready for installation.
C. Store components off the ground in a dry covered area, protected
from adverse weather conditions.
1.08 PROJECT CONDITIONS:
A. Maintain environmental conditions (temperature, humidity, and
ventilation) within limits recommended by manufacturer for optimum
results. Do not install products under environmental conditions
outside manufacturer's absolute limits.
1.09 WARRANTY:
A. Manufacturer's Warranty:
1. Fence manufacturer shall provide Aluminum Fencing lifetime-
limited warranty (“warranty”) against defects in workmanship.
Manufacturer shall also warrant the powder coated finish will not
chip, crack, or flake. The warranty may not be transferable and
may only be valid to the original purchaser. The warranty on
commercial installations of fences that are purchased by other
than a natural person, shall be limited to a period of thirty (30)
years.
PART - 2 - PRODUCTS
2.01 MANUFACTURERS:
A. Acceptable Manufacturer: Alumi-Guard, Inc., Brooksville, FL 34604;
Ameristar Fence Products, Tulsa, OK 74158; Stevens Pipe & Steel,
LLC Melborne, FL 32904
B. Substitutions: With Owner and Engineer approval only.
C. Requests for substitutions will be considered in accordance with
Special Provisions Section 00800.
2.02 MATERIALS:
A. Components:
1. Posts: Aluminum extrusions of 6005-T5 alloy in accordance
with ASTM B 221.
2. Pickets: Aluminum extrusions of 6063-T52 alloy in
accordance with ASTM B 221.
3. Channel: Aluminum extrusions of 6005-T5 alloy in
accordance with ASTM B 221.
B. Fasteners:
1. Screws of 410 and 18-8 stainless steel conforming to ASTM
A276, with self-drilling head.
2. Screws painted to match the finish of fence.
C. Accessories:
1. Post caps, wall brackets, scrolls, finials, flanges and other
miscellaneous hardware fabricated of aluminum or other
non-ferrous metal castings.
D. Concrete: Types specified in Sections 03300 – Cast-in Place Concrete.
E. Concrete: ASTM C94/C94M, Option A; Portland Cement; minimum
3,000 psi (17 MPa) strength at 28 days.
2.03 ORNAMENTAL FENCING:
A. Fencing General:
1. Municipal Grade:
a. Aluminum Channel Sections: 1-1/2 inch deep and 1 inch
wide with top 0.055 inch and sidewalls 0.082 inch wall
thickness. With decorative top corner.
b. Pickets 3/4 inch by 3/4 inch with a 0.050 inch wall
thickness.
2. Post Length:
a. As required to allow setting of post into the ground with
approximately 1-3/4 inches (305 mm) between bottom of
panel and ground.
B. Ornamental Fencing:
1. Style: Flat top rail and bottom rail, flush
a. Grade:
1) Municipal.
b. Channels:
1) 3 Channel.
c. Municipal Picket:
1) Standard: 3.875 inches spacing.
2) 0.75” x 0.75” x .05” wall thickness.
d. Panel Length: Inside posts.
1) Municipal Nominal 91.75 inches
e. Line Posts:
1) 2-1/2 inches by 2-1/2 inches.
2) 0.075 inch wall thickness.
f. Gate Post:
1) 4 inches by 4 inches.
2) 0.125 inch wall thickness.
g. Panel Height:
1) 72 inches.
C. Ornamental Gates: Provide to match ornamental style specified.
1. Height:
a. 72 inches.
2. Opening Width: Inside posts.
a. Nominal size opening as shown on construction plans to
conform to gate and accessory installation.
3. Hardware: Shall be furnished as noted or listed on the plans and
consist of one or more of the following accessory components:
a. Self-Closing Hinges.
b. Gravity Latch.
c. Lock bolt for one leaf of double gates.
d. Single Hole Lock Box.
e. Double Hole Lock Box.
f. Magna-Latch.
2.04 FINISH:
A. Fence and Accessory Finish:
1. SuperDurable Polyester Powder Coating: High performance
polyester, medium gloss, applied to over 2 mils thickness and
complying with AAMA 2604.
2. Fluoropolymers: Superior performance polyester power coating,
medium gloss, applied to 3-4 mils thickness and complying with
AAMA 2605.
B. Color: Color shall be dark bronze unless otherwise specified and
noted on the plans. Manufacturer shall be capable of providing the
following colors if specified by Owner:
1. Black
2. White
3. Dark Bronze
4. Hunter Green
5. Beige
6. Light Bronze
7. Gray
C. Performance:
1. Meet or exceed a 4000 hour salt spray test.
2. SuperDurable: Polyester Powder Coating: High performance
polyester, medium gloss, applied to over 2 mils thickness and
complying with AAMA 2604.
3. Fluoropolymers: Superior performance polyester power coating,
medium gloss, applied to 3-4 mils thickness and complying with
AAMA 2605.
4. Meets or exceeds ASTM D 3359 adhesion test.
2.05 FABRICATION:
A. Stringers, (Horizontal rails) shall be punched to allow pickets to
pass through the top of the rail. The number of stringers shall vary
with the style, height and strength as determined by manufacturer.
B. Pickets, shall be fastened to stringers mechanically with stainless
steel TEK screws on one side of the stringer only.
C. Posts, shall be pre-punched to allow the stringers to slide in and be
attached with stainless steel TEK. Cast aluminum post caps shall be
affixed to all posts.
D. Gates, shall be fabricated using the same components as for the
complete fencing system. Walk gates shall have adjustable self-
closing hinges and will be self-latching.
E. Assembled 3-Channel 72” high fence panels/sections shall support
a min. vertical load of 270 lbs. at midspan. 36” high sections shall
support a min. vertical load of 500 lbs. at midspan.
PART - 3 - EXECUTION
3.01 LINE AND GRADE:
Contractor shall stakeout accurate location of posts, corners and angles
prior to installation and following the finish grading operation.
3.02 EXAMINATION:
A. Do not begin installation until substrates have been properly
prepared.
B. If substrate preparation is the responsibility of another installer,
notify Architect of unsatisfactory preparation before proceeding.
3.03 PREPARATION:
A. Clean surfaces thoroughly prior to installation.
B. Prepare the grade and remove surface irregularities, if any, which
may cause interference with the installation of aluminum fence.
C. If preparation and condition is the responsibility of another
installer, notify Architect of unsatisfactory preparation before
proceeding.
3.04 INSTALLATION:
A. Install in accordance with manufacturer's instructions.
B. Excavate holes for posts to diameter and spacing indicated on
Drawings without disturbing underlying materials.
C. Provide excavation for post length to suit local conditions for
proper anchorage and stability.
D. Center and align posts in excavated holes to required depth. Place
concrete around posts, and vibrate or tamp for consolidation. Re-
check vertical and top alignment of posts, verify they are plumb
and level. Make necessary corrections if needed before concrete
hardens.
E. If fence is deck mounted on existing hard surfaces. Set posts
plumb, to tolerances specified. Locate mounting locations prior to
start of work. Avoid mounting over expansion or control joints.
Use non-corrosive fasteners suitable for the material to which it is
to be mounted.
F. Insert notched stringers into pre-punched posts and fasten with
stainless steel TEK screws.
G. Support gates from gate posts. Do not attach hinged side of gate
from building wall.
H. Provide concrete center drop for drop rod retainers at center of
double gate openings.
I. Install gates plumb, level and secure for full opening without
interference. For double gates, install drop rod. Adjust all
hardware for smooth operation.
3.05 ERECTION TOLERANCES:
A. Maximum Variation From Plumb: 1/4 inch.
B. Maximum Offset From Indicated Position: 1 inch.
C. Minimum distance from property line: 6 inches.
3.06 CLEANING:
A. Leave immediate work area neat at end of each work day.
B. Clean jobsite of excess materials; scatter excess material from
post hole excavations uniformly away from posts. Remove excess
material if required.
C. Clean aluminum fence with mild household detergent and clean
water rinse well. Mortar should be removed from exposed posts
and other fencing material using a 10% solution of muriatic acid
followed immediately by several rinses with clean water.
D. Touch up scratched surfaces using materials recommended by
manufacturer. Match touchup paint color to fence finish.
3.07 PROTECTION:
A. Protect installed products until completion of project.
B. Touch-up, repair or replace damaged products before Substantial
Completion.
3.03 GATES:
Gates shall be swing, single or double, as noted on the drawings. They
shall be complete with latches, stops, keepers, hinges, and braces. The
latch assembly shall be capable of being locked with a padlock.
SECTION 3550-1 HDPE LINER
PART 1 - GENERAL
1.01 SCOPE OF WORK:
Furnish and install a flexible membrane lining as shown on engineering or
contractor supplied drawings. All work shall be done in strict accordance
with the drawings and related specifications and the membrane lining
manufacturer's recommendations.
It is the intent of these specifications to insure a quality finished product
as described on the plans and specifications and shall be the
responsibility of the contractor to take whatever measures shall be
deemed necessary to insure that this requirement shall have been met.
All interested governmental agencies shall provide inspection services
throughout the installation procedure or provide written acceptance of
the installation after final inspection.
1.02 APPLICABLE SECTIONS:
3200-1 Earthwork
1.03 SUBMITTALS:
Six (6) copies of all submittal documentation is required for approval prior
to construction.
Certified test results showing that the liner sheeting meets or exceeds the
specification are required.
1. List of material properties.
2. Copy of quality control certificates issued by the resin supplier
stating that the resin meets the specification requirements.
3. Copy of quality control certificates for the geomembrane
including a Statement certifying no recycled polymer and no more
than 10% rework of the same type of material is added to the
resin (product run may be recycled).
The CONTRACTOR/INSTALLER shall furnish the following information to
the ENGINEER and OWNER for approval/acceptance prior to installation:
1. Installation layout drawings
a. Must show proposed panel layout including field seams and
details.
b. Must be approved prior to installing the geomembrane
2. Approved drawings will be for concept only and actual panel
placement will be determined by site conditions.
3. Installer’s Geosynthetic Field Installation Quality Assurance Plan
Pre installation submittals may be requested from CONTRACTOR /
INSTALLER at ENGINEER or Owners option for the following
documentation:
A list of completed facilities, totaling a minimum of 2,000,000
square feet for which the installer has installed polyethylene
geomembrane. For each installation, the following information
shall be provided:
a. Name and purpose of facility, location, and date of installation.
b. Name of owner, design engineer, manufacturer, and name
and telephone number of contact at the facility who can
discuss the project.
c. Thickness and quantity of the installed geomembrane.
d. Resume of the field installation supervisor and master seamer.
Upon completion of all geomembrane installation the CONTRACTOR /
INSTALLER shall submit the following documentation to the ENGINEER
prior to final acceptance of installation:
1. Certificate stating the geomembrane has been installed in
accordance with the Contract Documents.
2. Original and 5 copies of all Material and installation warranties.
3. As-built drawings showing actual geomembrane placement and
seams including typical anchor trench detail.
4. Copy of seam testing report and results.
1.04 QUALIFICATION OF CONTRACTOR WORK ACTIVITIES:
A. Manufacturing : The manufacturer shall have at least five (5) years
continuous experience in the manufacture of polyethylene
geomembrane and/or experience totaling 10,000,000 square feet
of manufactured polyethylene geomembrane. Membrane shall be
manufactured by GSE Lining Technology, Inc, Agru America,
Solmax International, or approved equal.
B. Installation : The installation contractor shall be the manufacturer
or a dealer trained to install the manufacturer's geomembrane.
Installation shall be performed under the constant direction of a
field installation supervisor who shall remain on site and be
responsible, throughout the liner installation, for liner layout,
seaming, testing, repairs, and all other activities by the Installer.
The field installation supervisor shall have installed or supervised
the installation of a minimum of 2,000,000 square feet of
polyethylene geomembrane and be certified by the liner
manufacturer. Seaming shall be performed under the direction of
a master seamer (who may also be the field installation supervisor)
who has seamed a minimum of 2,000,000 square feet of
polyethylene geomembrane, using the same type of seaming
apparatus specified for this project. The field installation
supervisor and/or master seamer shall be present whenever
seaming is performed.
1.05 WARRANTY:
A written Warranty shall be obtained from the manufacturer (for all
material) and the installation contractor (for workmanship). These
documents shall warrant both the quality of the material and
workmanship for a specified duration of time. The Contractor shall
warrant all labor for a minimum of 2 years. The manufacturer shall
provide a written warrant for the material for a minimum of 15 years.
Material shall be warranted, on a pro-rata basis against Manufacturer’s
defects for a specified 15 year period from the date of geomembrane
installation.
PART 2 - PRODUCTS
2.01 DESCRIPTION OF LINING MATERIALS:
1. The geomembrane shall be High-Density Polyethylene (HDPE) or
Linear Low Density Polyethylene (LLDPE).
2. Gasket material shall be neoprene, closed cell medium, 1/4 inch thick,
2 inches wide with adhesive on one side, as supplied by Poly-Flex, Inc.,
or other compatible gasket materials as required
3. Metal battens or banding and hardware shall be stainless steel.
4. Water cut-off mastic shall be Neoprene Flashing Cement as supplied
by Poly-Flex, Inc., or as required.
5. Sealant shall be General Electric Silicone, RTV 103, or equivalent.
2.02 GEOMEMBRANE RAW MATERIALS:
The geomembrane shall be manufactured of polyethylene resins
produced in the United States and shall be compounded and
manufactured specifically for the intended purpose. The resin
manufacturer shall certify each lot for the following properties.
The natural polyethylene resin without the carbon black shall meet the
following requirements:
Property Test Method HDPE
Requirements
LLDPE (VFPE)
Requirements
Density, g/cc ASTM D 1505 or ASTM D 792 0.935 - 0.940 0.915 - 0926
Melt Index, g/10 min. ASTM D 1238 Condition E < 0.4 < 0.6
2.03 ROLLS:
The geomembrane shall be a minimum 22.0 ft seamless width. Carbon
black shall be added to the resin if the resin is not compounded for ultra-
violet resistance. Do not exceed a combined maximum total of 1 percent
by weight of additives other than carbon black.
Geomembrane shall be free of holes, pinholes as verified by on-line
electrical detection, bubbles, blisters, excessive contamination by foreign
matter, and nicks and cuts on roll edges.
All liner sheets produced at the factory shall be inspected prior to
shipment for compliance with the physical property requirements listed.
Extrudate Rod or Bead;
1. Extrudate material shall be made from same type resin as the
geomembrane.
2. Additives shall be thoroughly dispersed.
3. Materials shall be free of contamination by moisture or foreign matter.
SMOOTH HDPE GEOMEMBRANE
TESTED PROPERTY TEST METHOD FREQUENCY MINIMUM AVERAGE VALUE
30 mil 40 mil 60 mil 80 mil 100 mil
Thickness, (minimum
average) mil (mm) Lowest
individual reading (-10%)
ASTM D 5199
every roll 30
(0.75)
27
40
(1.00)
36
60
(1.50)
54
80
(2.00)
72
100
(2.50) 90
(2.30) Density, g/cm3 ASTM D 1505 200,000 0.94 0.94 0.94 0.94 0.94
Tensile Properties (each
direction) Strength at
Break, lb/in-width (N/mm)
Strength at Yield, lb/in-
ASTM D 6693,
Type IV
Dumbell, 2 ipm
20,000
lb 120 (21)
66 (11)
700
152
(26)
84 (14)
243 (42)
132 (23)
700
327 (57)
177 (30)
700
410 (71)
212 (37)
700 Tear Resistance, lb (N) ASTM D 1004 45,000 lb 21 (93) 28 42 58 73 (324)
Puncture Resistance, lb (N) ASTM D 4833 45,000 lb 65 85 125 160 195 (867) Carbon Black Content, %
(Range)
ASTM D 1
603*/421 8
20,000 lb 2.0 -
3.0
2.0 - 3.0 2.0 -
3.0
2.0 -
3.0
2.0 - 3.0
Carbon Black Dispersion ASTM D 5596 45,000 lb Note(1)
Note(1)
Note(1)
Note(1)
Note(1)
Notched Constant Tensile
Load, hr
ASTM D 5397,
Appendix
200,000
lb
1000 1000 1000 1000 1000
Oxidative Induction Time, min ASTM D 3895,
200°C; O2, 1
200,000
lb
>140
>140
>140
>140
>140
TYPICAL ROLL DIMENSIONS
Roll Length(2)
, ft (m) 1,120
(341)
870
(265)
560
(171)
430
(131) 340 (104)
Roll Width(2)
, ft (m) 22.5 (6.9) 22.5
(6.9)
22.5
(6.9)
22.5
(6.9) 22.5 (6.9)
Roll Area, ft2 (m
2) 25,20
0
19,575
(1,819
12,60
0
9,67
5
7,650
(711)
NOTES:
• (1)
Dispersion only applies to near spherical agglomerates. 9 of 10 views shall be
Category 1 or 2. No more than 1 view from Category 3.
• (2)
Roll lengths and widths have a tolerance of ± 1%.
TEXTURED HDPE GEOMEMBRANE
NOTES:
• (1)
Dispersion only applies to near spherical agglomerates. 9 of 10 views
shall be Category 1 or 2. No more than 1 view from Category 3.
• (2)
NCTL for GSE I-ID Textured is conducted on representative smooth
membrane samples.
• (3)
Roll lengths and widths have a tolerance of ± 1%.
TESTED PROPERTY TEST METHOD FREQUENCY MINIMUM AVERAGE VALUE
Thickness, (minimum
average) mil (mm) Lowest
ASTM D 5994
every roll 30
(0.75)
40
(1.00)
60
(1.50)
80
(2.00)
100
(2.50) Density, g/cm
3 ASTM D 1505 200,000 lb 0.94 0.94 0.94 0.94 0.94
Tensile Properties (each
direction) Strength at
Break, lb/in-width
(N/mm) Strength at Yield,
ASTM D 6693, Type
IV Dumbell, 2 ipm
G.L. 2.0 in (51 mm)
20,000 lb 66 (11)
68 (11)
100
75
(13)
90
115 (20)
132 (23)
100
155 (27)
177 (31)
100
230 (40)
225 (39)
100
Tear Resistance, lb (N) ASTM D 1004 45,000 lb 24 (106) 32 (142) 45 (200) 60 (266) 75 (333)
Puncture Resistance, lb (N) ASTM D 4833 45,000 lb 65 (289) 95 (422) 130 160 190
Carbon Black Content, % ASTM D 1 20,000 lb 2.0 - 3.0 2.0 - 3.0 2.0 - 3.0 2.0 - 3.0 2.0 - 3.0
Carbon Black Dispersion ASTM D 5596 45,000 lb Note(1)
Note(1)
Note(1)
Note(1)
Note(1)
Asperity Height, mil (mm) ASTM D 7466 second roll 16 (0.40) 18
(0.45)
18
(0.45)
18
(0.45)
18 (0.45)
Notched Constant Tensile
Load(2)
, hr
ASTM D 5397,
Appendix
200,000 lb 1000 1000 1000 1000 1000
Oxidative Induction Time,
min ASTM D 3895, 200°
C; O , 1 atm
200,000 lb >140 >140 >140 >140 >140
TYPICAL ROLL DIMENSIONS
Roll Length(3)
, ft (m) Double-Sided Textured
Single-Sided Textured
830
(253)
700
(213)
520
(158)
400
(122)
330 (101)
250 (76) Roll Width
(3), ft (m) 22.5
(6.9)
22.5
(6.9)
22.5
(6.9)
22.5
(6.9)
22.5
(6.9) Roll Area, ft2 (m
2) Double-Sided
Textured
18,675
(1,735)
18,900
15,750
(1,463)
14,625
11,700
(1,087)
9,450
9,000
(836)
7,200
7,425
(690)
5,625
PART 3 - EXECUTION
3.01 MATERIAL PACKAGING, LABELING, DELIVERY, STORGAE AND HANDLING:
A. Packaging and Labeling - HDPE geomembrane material shall be packed
around a core in roll form. The core on which the rolls of geomembrane
are wound shall be at least 6.0 inches in diameter. The core should have
sufficient inside diameter such that fork lift stingers can be used for
lifting and movement. The cores should be sufficiently strong that the
roll should not cause buckling of the cores nor flattening of the rolls.
Each roll of geomembrane delivered to the site shall be labeled by the
MANUFACTURER. The label will identify:
1. manufacturer’s name
2. product identification
3. thickness
4. roll dimensions (length & width)
5. date manufactured
6. roll number
B. Delivery- Rolls of liner will be prepared to ship by appropriate means
to prevent damage to the material and to facilitate off-loading.
C. Storage- The on-site storage location for geomembrane material
acceptable to Owner and provided by the CONTRACTOR, shall protect
the geomembrane from punctures, abrasions and excessive dirt and
moisture and should have the following characteristics:
1. level (no wooden pallets)
2. smooth
3. dry
4. protected from theft and vandalism
5. adjacent to the area being lined
D. Handling- Materials are to be handled so as to prevent damage.
3.02 INSTALLATION:
Installation shall be performed by an authorized Installation Contractor who
has previously installed a minimum 2,000,000 sq. ft. of this material or by a
Contractor who has a full-time, on-site representative of the fabricator to
monitor the installation. The surface (substrate) to receive the liner shall be
smooth and free of sharp objects that could puncture the lining. All
vegetation must be removed. A soil sterilant may be required at the
discretion of the Engineer. The geomembrane lining shall be placed over
the prepared surfaces to be lined in such a manner as to assure minimum
handling. The panels shall be placed in such a manner as to minimize field
seaming. Horizontal field seams on slopes shall be kept to a minimum.
The membrane shall be sealed to all concrete structures and other openings
through the lining in accordance with details shown on the construction
drawings submitted by the Contractor, approved by the Engineer and the
manufacturer. Factory fabricated pipe seals shall be used to seal all pipes
penetrating the liner. Any portion of the lining damaged during installation
shall be removed or repaired by using an additional piece of membrane as
specified herein. The liner shall be installed in a relaxed condition and shall
be free of stress or tension upon completion of the installation. Stretching
the liner to fit is not permissible.
3.03 DEPLOYMENT:
A. Assign each panel a simple and logical identifying code. The coding
system shall be subject to approval and shall be determined at the job
site.
B. Visually inspect the geomembrane during deployment for
imperfections and mark faulty or suspect areas.
C. Deployment of geomembrane panels shall be performed in a manner
that will comply with the following guidelines:
1. Geomembranes shall be installed according to site-specific
specifications.
2. Unroll geomembrane using methods that will not damage
geomembrane and will protect underlying surface from damage
(spreader bar, protected equipment bucket).
3. Place ballast (commonly sandbags) on geomembrane which will
not damage geomembrane to prevent wind uplift.
4. Personnel walking on geomembrane shall not engage in activities
or wear shoes that could damage it. Smoking will not be
permitted on the geomembrane.
5. Do not allow heavy vehicular traffic directly on geomembrane.
Rubber-tired ATV’s and trucks are acceptable if wheel contact is
less than 8 psi.
6. Protect geomembrane in areas of heavy traffic by placing
protective cover over the geomembrane.
D. Sufficient material (slack) shall be provided to allow for thermal
expansion and contraction of the material.
3.04 FIELD SEAMING:
Approved seaming processes are fusion and extrusion welding. On side
slopes, seams shall be oriented in the general direction of maximum
slope, i.e., oriented down, not across the slope. In corners and odd-
shaped geometric locations, the number of field seams shall be
minimized.
No base T-seam shall be closer than 5 feet from the toe of the slope.
Seams shall be aligned with the least possible number of wrinkles and
"fishmouths". If a fishmouth or wrinkle is found, it shall be relieved and
cap-stripped.
A. Seam Overlap
Geomembrane panels must have a finished minimum overlap of 4
inches for fusion welding and 6 inches for extrusion welding. Cleaning
solvents may not be used unless the product is approved by the liner
manufacturer.
B. Seaming Equipment and Accessories
Welding equipment and accessories shall meet the following
requirements:
1. Gauges showing temperatures in apparatus such as extrusion
welder or fusion welder shall be present.
2. An adequate number of welding apparatus shall be available to
avoid delaying work.
3. Power source must be capable of providing constant voltage under
combined line load.
Approved equipment for field seaming are fusion welders and
extrusion fillet welders.
1. Fusion Welder, 110 Volt (220 Volt).
2. Extrusion Welder, 220 Volt.
3. High-speed, 10,000 rpm, 41/2 inch side grinder with 80-grit discs.
4. 6.5 KW Generator, single-phase with 110/200 Volt Outputs.
5. Power Cord, minimum S.O. type, 12 gauge O.S.H.A. approved
electrical cord with O.S.H.A. approved twist-type plugs and
connections.
6. Vacuum Box Test Equipment for non-destructive seam testing.
7. Air pressure test equipment for non-destructive seam testing.
8. Field Tensiometer, capable of performing quantitative shear and
peel tests.
C. Test Seams
Field test seams shall be conducted on the liner to verify that seaming
conditions are satisfactory. Test seams shall be conducted at the
beginning of each seaming period and at least once each 4 hours, for
each seaming apparatus and personnel used that day.
All test seams shall be made in contact with the subgrade. Welding
rod used for extrusion welding shall have the same properties as the
resin used to manufacture the geomembrane. The test seam samples
shall be 10 feet long for fusion welding and 3 feet long for extrusion
welding with the seam centered lengthwise. Five specimens shall be
cut from each end of the test seams by the inspector. The inspector
shall use a tensiometer to test 5 specimens for shear and 5 specimens
for peel. Each specimen shall be one inch wide with a grip separation
of 4 inches plus the width of the seam. The seam shall be centered
between the clamps. The rate of grip separation shall be 2 inches per
minute. Test results for seam strength properties shall be the average
of five specimens. Four out of five specimens shall pass seam
acceptance criteria. Shear and peel tests shall return in Film Tearing
Bond (FTB), which is a failure in ductile mode of one of the bonded
sheets by tearing prior to complete separation in the bonded area. If
a test seam fails to meet field seam specifications, the seaming
apparatus and/or seamer shall not be used for seaming until the
deficiencies are corrected and a successful test seam is achieved.
D. Non-Destructive Seam Testing
The installer should non-destructively test all field seams over their
full length.
3.05 BACKFILL OF ANCHOR TRENCH:
The anchor trench shall be backfilled by the earthwork contractor. Trench
backfill material shall be placed and compacted in accordance with the
project specifications. Care shall be taken when backfilling the trenches
to prevent any damage to the geomembrane. If damage occurs, it shall
be repaired prior to backfilling.
3.06 LINING BASE MATERIAL:
A base shall be prepared on the bottom and slopes of the area to be
lined. This base shall be free of all sharp objects, roots, grass and
vegetation. Unsuitable material found during the pre-installation
inspection by the installer shall be removed prior to the installation of the
liner.
The base (subgrade) material shall be native materials or materials
obtained from a borrow source compacted to a minimum 95%
compaction.
Foreign materials, vegetation, protrusions, voids, cracks and other
penetrating or raised sources shall by removed from the sloping areas as
well as the base. Loose rocks, rubble and other foreign matter shall be
collected and deposited in the appropriate site out of the area to be
lined. The excavated and filled areas shall be trimmed to elevations and
contours shown on the drawings and shall be smooth, uniform and free
of all foreign matter, vegetation and sudden changes in grade.
A pre-installation inspection shall be called for and ALL interested parties,
including governmental agencies, shall be present for this
inspection. Any parties not participating in this inspection shall be
construed as accepting the site preparation and will acknowledge this de
facto acceptance in writing at the appropriate time
3.07 FINAL SUBGRADE PREPARATION:
The sub grade shall be prepared immediately prior to the placing of the
liner. The surface on which the liner is to be placed is to be firm, clean,
dry and smooth. Anchor trench excavation and any structure seal
preparation should be completed before the lining installation begins.
3.08 LINING INSTALLATION:
A continuous sheet of liner shall be installed throughout the installation
site as according to the drawings. The lining shall be placed over the
prepared surfaces to be lined in such a manner as to assure a minimum
of handling. The sheets shall be of prescribed lengths and widths and
shall be placed in such a manner as to minimize field seams. Only those
pieces of fabric that can be installed and anchored in place during the
workday shall be unpacked and placed in position.
Sandbags and or other suitable weights may be used as required to hold
the lining in position during the installation. The weights shall not have
any sharp edges, which may snag or otherwise penetrate the liner fabric.
Care should be taken to keep the seam areas as clean as possible. It may
be necessary to wipe down the edges prior to heat-sealing the panels
together.
No materials or equipment shall be dragged across the face of the liner
nor shall the workmen while installing the liner subject the liner to
abuse. All installation party members shall wear soft-soled shoes or
boots while working on the surface of the liner.
Lining sheets shall be closely fit around all penetrations through the
liner. Lining to concrete seals shall be affected with mechanical anchors
as shown on drawings. All piping, structures and irregular projections
shall be sealed and flashed with the fabricated boots or other approved
sealing methods.
3.09 FIELD QUALITY ASSURANCE
A. MANUFACTURER and INSTALLER shall participate in and conform to
all terms and requirements of the Owner’s quality assurance of this
specification. CONTRACTOR shall be responsible for assuring this
participation.
B. Quality assurance requirements are as specified in this Section and in
the Field Installation Quality Assurance Manual if it is included in the
contract.
C. Field Testing
1. Non-destructive testing may be carried out as the seaming
progresses or at completion of all field seaming.
a. Vacuum Testing
1) Shall be performed in accordance with ASTM D 5641,
Standard Practice for Geomembrane Seam Evaluation by
Vacuum Chamber.
b. Air Pressure Testing
1) Shall be performed in accordance with ASTM D 5820,
Standard Practice for Pressurized Air Channel Evaluation of
Dual Seamed Geomembranes.
c. Spark Testing (if conductive layer is specified)
1) Shall be performed accordance with ASTM D 7240 Standard
Practice for Leak Location using Geomembranes with an
Insulating Layer in Intimate Contact with a Conductive Layer
via Electrical Capacitance Technique (Conductive
Geomembrane Spark Test).
d. Other approved methods.
2. Destructive Testing (may be performed by Owner’s independent
CONSULTANT with assistance from INSTALLER)
a. Location and Frequency of Testing
1) Collect destructive test samples at a frequency of one per
every 500 lineal feet of seam length.
2) Test locations will be determined after seaming.
3) Exercise Method of Attributes as described by GRI GM-14
(Geosynthetic Research Institute, http://www.geosynthetic-
institute.org) to minimize test samples taken.
b. Sampling Procedures are performed as follows:
1) INSTALLER shall cut samples at locations designated by the
CONSULTANT as the seaming progresses in order to obtain
field laboratory test results before the geomembrane is
covered.
2) CONSULTANT will number each sample, and the location will
be noted on the installation as-built.
3) Samples shall be twelve (12) inches wide by minimal length
with the seam centered lengthwise.
4) Cut a 2-inch wide strip from each end of the sample for field-
testing.
5) Cut the remaining sample into two parts for distribution as
follows:
a) One portion for INSTALLER, 12-inches by 12 inches
b) One portion for the Third Party laboratory, 12-inches by
18-inches
c) Additional samples may be archived if required.
6) Destructive testing shall be performed in accordance with
ASTM D 6392, Standard Test Method for Determining the
Integrity of Non-Reinforced Geomembrane Seams Produced
Using Thermo-Fusion Methods.
7) INSTALLER shall repair all holes in the geomembrane
resulting from destructive sampling.
8) Repair and test the continuity of the repair in accordance
with these Specifications.
3. Failed Seam Procedures
a. If the seam fails, INSTALLER shall follow one of two options:
1) Reconstruct the seam between any two passed test locations.
2) Trace the weld to intermediate location at least 10 feet
minimum or where the seam ends in both directions from
the location of the failed test.
b. The next seam welded using the same welding device is
required to obtain an additional sample, i.e., if one side of the
seam is less than 10 feet long.
c. If sample passes, then the seam shall be reconstructed or
capped between the test sample locations.
d. If any sample fails, the process shall be repeated to establish
the zone in which the seam shall be reconstructed.
3.10 REPAIR PROCEDURES
A. Remove damaged geomembrane and replace with acceptable
geomembrane materials if damage cannot be satisfactorily repaired.
B. Repair any portion of unsatisfactory geomembrane or seam area
failing a destructive or non-destructive test.
C. INSTALLER shall be responsible for repair of defective areas.
D. Agreement upon the appropriate repair method shall be decided
between CONSULTANT and INSTALLER by using one of the following
repair methods:
1. Patching- Used to repair large holes, tears, undispersed raw
materials and contamination by foreign matter.
2. Abrading and Re-welding- Used to repair short section of a seam.
3. Spot Welding- Used to repair pinholes or other minor, localized
flaws or where geomembrane thickness has been reduced.
4. Capping- Used to repair long lengths of failed seams.
5. Flap Welding- Used to extrusion weld the flap (excess outer
portion) of a fusion weld in lieu of a full cap.
6. Remove the unacceptable seam and replace with new material.
E. The following procedures shall be observed when a repair method is
used:
1. All geomembrane surfaces shall be clean and dry at the time of
repair.
2. Surfaces of the polyethylene which are to be repaired by extrusion
welds shall be lightly abraded to assure cleanliness.
3. Extend patches or caps at least 6 inches for extrusion welds and 4
inches for wedge welds beyond the edge of the defect, and around
all corners of patch material.
F. Repair Verification
1. Number and log each patch repair (performed by CONSULTANT).
2. Non-destructively test each repair using methods specified in this
Specification.
3.10 QUALITY OF WORKMANSHIP:
All joints, on completion of work, shall be tightly bonded. Any lining surface
showing injury due to scuffing, penetration by foreign objects, or distress
from rough subgrade, shall, as directed by the Engineer, be replaced or
covered and sealed with an additional layer of PVC of the proper size. A
Fabricator Field Service Representative will be required during the liner
installation and shall inspect and certify that the installation was performed
in accordance with the manufacturer's recommendations. The Contractor
will bear the expense of the Field Service Representative.
3.11 WARRANTY:
Geomembrane material warranty shall be furnished to Owner following
completion of installation. Warranty shall be for a minimum of 15 years for
all materials. Installer warranty for all seams and installation workmanship
shall be for a minimum 2-year duration following completion of material
installation and delivery of field installation reports, samples and materials
warranty to Owner.
3.12 GEOMEMBRANE ACCEPTANCE:
The installer shall retain all ownership and responsibility for the
geomembrane until acceptance by the owner.
Final acceptance is when all of the following conditions are met:
1. Installation is finished.
2. Verification of the adequacy of all filled seams and repairs,
including associated testing, is complete.
3. Delivery of certified original warranty.
PART 4 - MEASUREMENT AND PAYMENT
A. Payment for geomembrane installation will be as per contract unit
price per square foot, as measured parallel to liner surface, including
designed anchor trench material and is based upon net lined area.
B. Net lined area is defined to be the true area of all surfaces to be lined
plus designed burial in all anchor trenches, rubsheets, and sacrificial
layers.
C. Prices shall include full compensation for furnishing all labor, material,
tools, equipment, and incidentals.
D. Prices also include doing all the work involved in performing
geomembrane installation and testing completely as shown on the
drawing, as specified herein, and as directed by the ENGINEER.
SECTION 3600-1 SIMPLEX SUBMERSIBLE PUMP STATION
PART 1 - GENERAL
1.01 SCOPE OF WORK:
The Contractor shall furnish and install ONE (1) SIMPLEX stormwater
pumping station as shown and specified, including all necessary
components and equipment to provide a complete and functional facility.
In addition to the specifications shown herein the pumping station shall
conform to the requirements of the local utility and/or government
having jurisdiction over the construction.
The equipment system shall include one (1) submersible non-clog pumps
with 3" solids handling capacity, stainless steel pump rail guides,
discharge elbows and rail supports, access frame with aluminum access
covers, pump lifting chains with hooks, stainless steel cable holder, NEMA
4X fiberglass weather proof control panel, non-mercury switch level
controls, and station valves, pipe, fittings, concrete wet well, and
miscellaneous related items of equipment.
All equipment for the system shall be furnished by one (1) company to
insure complete component compatibility and operation.
1.02 QUALITY ASSURANCE:
A. Acceptance tests: Services of manufacturers representative for
start up certification.
B. Manufacturer's successful experience in manufacture, operation
and servicing of equipment of type, size, quality performance and
reliability, equal to that specified.
1.03 REFERENCES:
A. American National Standards Institute (ANSI)
B. American Society of Mechanical Engineers (ASME)
C. National Sanitation Foundation (NSF)
1.04 SUBMITTALS:
A. Contractor shall submit to the Engineer two (2) hard copies and
one (1) CD or other acceptable file transfer media, a copy of the
descriptive or product data submittals in PDF (Portable Document
Format) file format. The Contractor may submit up to four (4)
additional hard copies which will be returned to the Contractor, if
Contractor desires returned hard copies. The Engineer will retain
two (2) hard copy sets. Contractor submittals provided shall
include certified Shop Drawings and performance data regarding
pump, structure, controls and appurtenances characteristics
including:
1. Pump and Motor Data:
a. Outline dimensions and weight
b. Manufacturers Pump Information Sheet (including
Pump Model and Impeller number(size), efficiency,
power factor, NPSH, and variable speed conditions)
c. Operating and maintenance instructions and parts
list.
d. Operating and nameplate data
e. Pump performance curve with GPM, TDH, HP, and
operating range data for variable speed operation.
f. Certification Statement that motors and cable are
suitable for use with variable frequency drives.
2. Access Equipment:
a. Access frame and cover details, Grating and/or
Hatch equipment
3. Structural :
a. Outline dimensions and openings.
b. Concrete wetwell reinforcement and anti-
floatation characteristics.
4. Controls Data:
a. Manufacturer's size and type, circuit diagram.
b. Enclosure (NEMA rating and locking mechanism)
c. Operating data, float switch controls, radio
transmitter
B. If equipment proposed substantially differs from arrangement
indicated, prepare and submit detailed drawings for review
showing all mechanical, electrical and structural changes, at no
additional compensation.
1.05 DELIVERY, STORAGE AND HANDLING:
A. Shipping:
1. Ship equipment, material and spare parts complete,
except where partial disassembly is required by
transportation regulations or for protection of
components.
2. Pack spare parts in containers bearing labels clearly
designating contents and pieces of equipment for which
intended.
3. Deliver spare parts at same time as pertaining equipment.
Delivery to Owner after completion of work.
B. Receiving:
1. Assume responsibility for equipment material and spare
parts just before unloading from carrier at site.
2. Inspect and inventory items upon delivery to site.
3. Unload, haul and store items.
4. Pay all demurrage charges if failed to promptly unload
items.
1.06 DESIGN CRITERIA:
The pump shall have operating capacities and conditions as specified
herein. Motor horsepower, voltage and Phase requirements are as
indicated in this specification. The pump shall be non-overloading
throughout the entire range of operation without employing service
factor. The pump shall reserve a minimum service factor of 1.15. The
performance curve submitted for approval shall state in addition to head
and capacity performance, the pump efficiency, solid handling capability,
and reflect motor service factor.
Design Flow: 300 GPM
Design Head: 34 ft. TDH
HP: 5 HP
Voltage: 230V, 3 Ph
PART 2 - PRODUCTS
2.01 DESCRIPTION:
Submersible sewage pumping station assembled with pumps, piping,
valves, controls, panels, instruments and appurtenances. Pump
manufacturers shall be Flygt, Gorman-Rupp, or an equivalent pump and
characteristics approved by the Engineer.
2.02 MATERIALS:
A. Submersible Pump/Motor Construction
Submersible pump shall be designed to pump sewage,
stormwater, heavy sludge and other fibrous materials without
injurious damage during operation. Pump shall be capable of
handling raw, unscreened sewage at least three (3) inches in
diameter.
The pump motor shall be guaranteed to run in a totally, partially,
or non-submerged condition continuously for a period of twenty-
four (24) hours without injurious damages.
Pump shall have two (2) mechanical seals with an oil chamber
between the seals. All pump fasteners shall be stainless steel. The
pump motor-shaft shall be stainless steel.
Seal of the pump at the discharge flange, shall be a positive, leak
proof system and shall be guaranteed not to leak.
Pump discharge assembly shall have the manufacturer’s name,
model number, serial number, impeller size and other pertinent
data marked on a metal plate.
Motor shall have non-overloading characteristics and shall not
overload anywhere on the operating curve. The motors shall have
a name plate with the revolutions per minute, horsepower,
voltage, amperage, the manufacturer’s name and model number
clearly marked on the nameplate.
Motor shall operate on 3 PHASE power only, unless otherwise
specifically approved by engineer.
The pump shall be equipped with a seal leak detection probe and
warning system. There shall be an electric probe or failure sensor
installed in the seal chamber between the two tandem
mechanical seals. If the lower seal fails, contaminants which
enter the seal chamber shall be detected by the sensor and send a
signal to operate a warning light located on the pump control
panel.
Pump shall be equipped with heat sensor. The heat sensor shall
be low resistance, bi-metal disc temperature sensitive. It shall be
mounted directly on the stator windings and sized to open at 120
degrees centigrade and automatically reset at 30-35 degrees
centigrade differential. The sensors shall be connected in series
with motor starter coil so that the starter shall be equipped with
three leg overload heaters so all normal overloads are protected
by the starter.
B. Discharge Piping
Minimum 4" D.I.P. discharge piping with 90 degree fitting, check
and gate valves, basket strainer, and spool piece, shall be installed
as shown on the construction plans.
C. Access Frame and Cover
Access cover shall be single leaf hinged as specified on the
construction plans. The access assembly shall be furnished for the
wet well. The access frame cover shall be capable of bearing a
300 lb/ft2 live load. Access frame cover shall be fabricated of
aluminum. Frame shall support guide rails and stainless steel
cable holder. Hinged cover shall be provided with lifting handle
and safety latch to hold cover in the open position. Locking hasp
shall be furnished for the cover. Door and frame are to be
installed integral with the concrete wetwell pad. Frame and
access cover shall be as manufactured by Halliday products, Inc.;
Bilco Hatch, Inc. , or approved equal. The entrance hatch shall be
constructed and fabricated to comply with applicable OSHA
standards. All surfaces in contact with concrete shall have a shop
coat of zinc chromatic primer, approved alkali resistant paint or
other approved protective coating. Cover must be compatible
with pump and guide rail system.
The contractor shall provide a pad lock for the wetwell cover. The
pad lock shall be Masters or equal.
D. Electrical Control Panel
The simplex pump panel shall be standard duty type. The
complete unit shall be housed in a NEMA-4X (Fiberglass or type
304 stainless steel) enclosure with provisions for padlocking the
door, and a dead front inner door for mounting controls. All
exterior hardware and hinges shall be 304 stainless steel. All
exterior mounted equipment accessories shall be constructed of
corrosion resistant materials such as stainless steel or aluminum.
Panel shall be mounted two concrete posts unless otherwise
approved, and include ground fault protection and lightning
arrestor.
Mounted on the exterior side of the panel shall be the main
circuit breaker with provisions for locking in an ON or OFF position.
The Control Panel shall be fully tested prior to installation and
include the following components:
1. The panel shall have a BQ frame normal breaker and a BQ
frame emergency breaker for main breaker disconnect with
handles through the inner door and a mechanical interlock on
the handles to insure that only one breaker is in the “on”
position at a time. No fuses shall be permitted inside the
control panel, only resetable circuit breakers. All breakers and
starters shall be Square D Company, or approved equal.
2. Pump motor shall be provided with a NEMA rate across the
line starter with individual quick-trip overload protection on
each leg. Overloads shall be capable of either manual or
automatic reset and shall have a manual trip button to
facilitate testing of the overload mechanism. A reset button
shall be provided on the door for each overload. Starter coils
and contacts shall be easily replaceable with standard hand
tools. Start and run capacitors shall be mounted inside the
control panel and not in the pump motor(s).
3. A rotary type, three position selector switch for HAND-OFF-
AUTOMATIC operation and a run light for the pump shall be
on the inner door.
4. Wire shall be minimum #14 gauge in wire duct, wire marked
and fully accessible. Wiring shall be labeled, color coded or
numbered.
5. Relays and control wiring shall be rated NEMA 300 volt, Furnas
Electric Class 46, or approved equal. Power terminal blocks
shall meet 600 volt creepage and clearance requirements of
NEMA and UL for general industrial control equipment and
panel boards. Control circuit terminal blocks shall be rated 300
volts as NEMA general industrial control devices.
6. Elapsed Time Meters; The panel shall have a non-reset type
elapsed time meter for pump starter mounted on the inner
door to record the accumulated running time of the pump.
Elapsed time meter for the clock shall record in hours and
1/10 of an hour.
7. Surge/Lightning Suppressors: The control panel and all
electrical circuits shall be equipped with transient voltage
surge suppressors (TVSS) to protect these items from the
effects of lightning induced currents, substation switching
transients and internally generated transients resulting from
inductive and or capacitive load switching. Lightning
Arrestor/Surge Suppressor shall be Silicon Type N. A surge
suppressor shall be installed on the control panel, float level
switches and pump per the manufacturer’s instructions.
Conductors between the suppressor and the point of
attachment to the panel board shall be kept as short and
straight as possible. Suppressors shall have a maximum single
current withstand rating and pulse life rating appropriate for
the intended installation and shall be housed in an enclosure
that is compatible with the system being protected.
8. Phase Monitor: The Station electrical components shall be
protected against all electrical inequities. Phase monitor relay
shall be as manufactured by Diversified Electronics, Evansville,
Ind., Model #SLA 230 ASA, including surge capacitor as
required unit will automatically restore when normal
conditions are restored.
9. Control panel shall come equipped with 24-hour time switch
as manufactured by Intermatic, Inc. Model #FM1STUZ-120U or
approved equivalent. Time switch shall restrict duration that
pump is permitted to run. Maximum run time of the pump
allowed by the timer shall be set at 20 minutes and shall be
capable of being altered by Owner's personnel.
10. Control panel shall come equipped with Model DR9011
Transmitter as manufactured by Wilkerson Instruments, Inc.
mounted to the DIN rails within the panel. The transmitter
shall receive 10-30 VDC power source and transmit RF signal
through coaxial cable to site antenna.
11. Pump Controller shall be model SC1000 as manufactured by
Motor Protection Electronics, Inc. The Controller shall control
up to three pumps to perform liquid level control. The
Controller shall be capable of alternating the pumps, and shall
provide lag pump delays and high and low level alarms, and shall
perform both pump-down and pump-up operation.
a) The Controller shall be standard “off the shelf” equipment
with published literature and fully tested hardware and
operating program. The Controller must be field
configurable from the front of the unit, and require no
special tools or software to set-up or operate.
b) The Controller shall be a microcontroller-based device and
not require a battery to maintain the operating program.
All set-up values shall be stored in non-volatile memory.
c) The Controller shall be UL listed as Industrial Control
Equipment, UL 508.
d) A numerical level display shall be provided on the front of
the unit. It shall have a 3 digit, 7 segment LED display and
show levels in feet and tenths of feet. All setup parameter
values shall be viewed or changed from the front of the
Controller.
e) The Controller shall not require an external power supply or
any external I/O modules to be a fully functioning unit. An
analog input (4-20mA) with zero and span adjustments shall
be provided for the wet-well level input.
f) Relay outputs shall be provided as standard for high and low
level alarms and for the control of up to three pumps.
g) The Controller shall have adjustable lag pump(s) delay.
h) All electrical connections, for power or I/O, shall be by quick
disconnect phoenix style connectors.
i) The Controller shall have 12 discrete inputs. The inputs
shall be transient protected and be programmable for the
following functions:
- Pump disable with HOA in OFF, or pump fault
- External Alternator Selector Switch
- All Pump Disable – for connection to Phase Monitor
- Limit number of pump called to run on emergency
power
- Alternation by External Time Clock
- Freeze wet well level during a bubbler tube purge
- Pump disable upon low level – for connection to low
level float switch
- Float switch backup
- Low Level Pump Cutoff
- Start Flush Cycle
- Inputs for user selectable SCADA functions
j) If not being used, the ten conductance level probe inputs
shall be available for use as ten additional discrete SCADA
inputs.
k) Troubleshooting features shall include a fault indicator on
the front of the unit and retrievable fault codes that aid in
diagnosing most common problems.
l) Status of all of the discrete inputs shall also be viewable
from the front of the unit.
m) A level simulation feature shall also be available from the
front of the unit. The Controller shall automatically return to
monitoring wetwell level after sixty seconds, if left in
simulation mode.
Menu selectable First-On/First-Off or First-On/Last-Off
alternation sequences shall be available.
Menu selectable alternation modes shall include:
• Standard Alternation
• Jockey pump (Pump 1 stays on when other pumps turn
on)
• Jockey Pump (Pump 1 turns off when other pumps turn
on)
• Split alternation (Pumps 1&2, Pumps 3)
• Fixed sequence (Pump 1 always lead)
• Stepped on/off (Only one pump runs at a time)
n) Pump disable discrete inputs shall cause the alternation
routine to skip over disabled pumps.
o) The Controller shall remember which pump was in the
lead position during a power outage.
p) An RS232 serial port with the Modbus RTU protocol shall
be provided for SCADA. Programming shall be in place to
collect and transmit the station status, and to allow for the
remote control of the pumps.
q) The Pump On/Off levels, high level alarm, and low level
alarm setup values shall be viewable and changeable from
a remote location.
r) Pump elapsed time meters shall be viewable and
resettable remotely, and shall be stored in non-volatile
memory during a power outage.
s) The Controller shall contain a discrete input for connection
to an external time clock to force pump alternation.
t) The Controller shall have a parameter setting to allow the
analog input level to be a 4-20mA signal from a transducer
or an input from a conductance level probe.
u) The Controller shall have a parameter setting to select the
number of pumps to control.
v) The Controller shall have a parameter setting to select the
number of pumps to run at one time.
w) The Controller shall have a parameter setting to select the
number of pumps allowed to run while on generator
power.
x) The Controller shall pave parameters for calibrating the
zero and span of the level input signal.
y) The Controller shall have a fault code register to aid in
troubleshooting.
z) All connections to the Controller shall be made to
removable, “Phoenix” style combination connector/plugs.
aa) The Controller shall also have parameters to allow level
probe to be a back-up to the analog transducer input.
bb) The Controller must shall have a connector for a
conductance level probe with ten sensor points.
cc) The Controller shall have a parameter to select the level
probe type by the distance between the electrodes.
dd) The Controller shall have a choice of impedance settings
for use with a conductance probe.
ee) The Controller shall have a level offset parameter to
enable the transducer or conductance level probe to be
placed off the bottom of the wetwell, while maintaining an
accurate representation of the wetwell depth.
ff) The Controller shall be able to perform float back-up using
two to six floats.
gg) The Controller’s unused output relays shall be able to be
programmed through SCADA for additional control uses.
hh) The Controller shall be able to perform an automatic flush
cycle to reduce sludge build up within the wetwell.
ii) The Controller shall contain a flow calculator that provides
the following:
• Latest Inflow Rate
• Average Daily Flow (Average of the last 7 days)
• Pump Outflow Rate (Latest Rate for each pump)
The Controller shall contain the ability to perform the following SCADA
features:
Monitor the status of:
• Wetwell Level
• All Discrete Inputs
• Pump On, Pump Off, High and Low Alarm Levels
• Individual Pump Disable Status
• All Pump Disable Status
• Float Backup Status
• On Generator Status
• Level Probe Backup Status
• Pump Forced On Status
• ETMs
• Relay Remote Control Status
• Forced Alternation Status
• Pump Run Status
• Pump Forced On Status
• Current Lead Pump Status
• Level Probe Electrode Status
• Fault Code Status
• Last Fault Code Status
• Internal 5V Power Supply Status
• Internal 24V Power Supply Status
• Controller Program Revision Number
• Flow Calculator, Latest Inflow rate
• Flow Calculator, Average Daily Flow
• Flow Calculator, Outflow Rate per Pump
• Flow calculator, Daily Inflow Total for last 7 days
Control:
• Remotely Change Pump On, Pump Off, High and Low
Alarm Levels
• Remotely Reset ETM’s
• Remotely Force Pumps On
• Remotely Disable Pumps
• Remotely Force Alternation
• Remotely Select Lead Pump
• Remotely Reset Fault Code Register
• Remotely Reset Last Fault Code Register
• Remotely Control Unused Relays
Fault Codes:
The following Fault Codes shall be available for Controller
Troubleshooting:
• Communication Fault
• Parameter Setup Faults
• Normal Operation Disabled
• Pump Operation on Float Backup
• All Pump Disable
• Backup Float Out-of-Sequence
• Level Probe Fault
• Level Probe Out-of-Sequence
• Flow calculator Setup fault
The Controller shall offer the following optional features:
4-20mA Analog Level input may be ordered as an isolated
input.
An optional Ethernet Port that will perform both Modbus TCP
and Modbus RTU protocols.
The SC1000 Controller is to be manufactured by Motor
Protection Electronics of Apopka, Florida, (407) 299-3825.
E. General Electrical
All wiring and grounding shall conform to NEC and Local electrical
codes.
Conduit shall enter the pump station wetwell and terminate with
fiber bushing. No splices will be allowed in the wetwell or conduit.
All control and motor cords shall be continuous from the motor to
the control panel terminal.
Electrical control panel shall be grounded with a copper ground
rod installed in accordance with NEC.
Electrical service entrance shall include a meter socket and
disconnect. All local electric power service company and
applicable electrical codes for meter sizing and installation shall
be complied with. Service meter and disconnect shall be
mounted on the opposite side of the control panel installation
and be for underground service only. Conductor wire and conduit
size shall be in accordance with NEC and copper wire.
Control panel shall have a laminated schematic diagram and a
laminated equipment list (listing the manufacturer and model of
all electrical components housed within the control panel)
attached to the inside surface of the front door. A typed directory
indicating equipment controlled and/or monitored by the panel,
electrician that installed the panel, electrician that assembled the
panel and the date the panel was installed shall be attached to
the inside of the surface front door.
F. Non-Mercury Float Switch Level Controls
Non-Mercury float switch level controls shall be single pole Model
ENM-10 as manufactured by Flygt or equal. Float switches shall
have a snap action switch activated by a steel ball rolling back and
forth within a switching tube in a polypropylene plastic float
housing. Switches shall be mounted on a standard stainless steel
rack accessible from the hatch cover and in a place that does not
interfere with the removal of the pump. Switches shall be set up
as indicated on the construction plans. Switch shall actuate when
the longitudinal axis of the float is horizontal, and deactuate when
the liquid level falls 1” below the actuation level. The float shall
have a chemical resistant polypropylene casting with a firmly
bonded electrical cable protruding. One end of the cable shall be
permanently connected to the enclosed switch and the entire
assembly encapsulated to form a completely water tight and
impact resistant switch unit.
G. Operation of the System
Upon wet well sump level rise, higher float switch for pump “ON”
level shall energize and start the pump. With the pump operating,
the wet well level shall lower to the lower float switch for pump
“OFF” setting and the pump shall stop. If the liquid level continues
to rise, the third level switch, high-level float shall be energized
and shall send signal to the DR9011 Transmitter, which shall relay
the signal from the simplex pump station to the Cameo Pond
Stormwater Pump Station DR9021 Receiver to shut off all pumps
at the triplex pump station. The control panel shall also be
equipped with a 24-hour timing device for the pump to operate
for specified durations throughout the day as determined by City
of Ocala Department of Public Works.
All level switches shall be adjustable, for level setting, from the
surface.
H. Wetwell and Accessories
The wet well shall be sized as illustrated on the construction plans.
Wetwell shall be constructed of reinforced precast concrete as
further specified herein.
Reinforced concrete meeting “Standard Specifications for Precast
Reinforced Concrete Manholes”, ASTM C-478-75, latest revision.
Cement used in reinforced concrete composition shall be Type II
acid resistant cement used for sanitary construction. Concrete
shall attain a minimum compressive strength of 4000 psi at
twenty-eight (28) days. Wall joints shall be tongue and groove
and so spaced that no piping shall pass through the wet well at a
joint. Joints shall be laid full with cement mortar, sealed with
double ring “RAM-NEK” or equal, and shall have no voids or other
imperfections, and shall be entirely watertight upon completion
of construction.
Openings in the walls of the wet well for the passage of pipes may
be made by the manufacturer at the time of fabrication or may be
made in the field by the contractor, if desired. If holes are made
in the field, their maximum dimension shall not exceed 1-1/2
times the outside diameter of the pipe passing through the
opening. Reinforced steel in the wall shall be cut cleanly and in no
circumstances will cut ends by bent so as to turn to the inside or
outside surface. Openings so made shall be thoroughly filled with
non-shrinking grout after installation of the pipes and special care
shall be taken to insure a watertight connection at these points.
A Flexible water tight pipe boot shall be used for all main line pipe
penetrations into the wet well when PVC piping is utilized.
The concrete base upon which the wet well rests shall be
constructed of Type II 4000 psi concrete, reinforced to comply
with ASTM C-478. The reinforced concrete top of the wet well
will be constructed of Type II 4000 psi concrete, reinforced to
comply with ASTM C-478 and with a rectangular opening for
access to the wet well. The pump and/or accessories shall be
secured to the concrete base in accordance with the
manufacturer’s recommendations.
Minimum design for adequacy of base and top slab reinforcement
is for AASHTO H-20 truck loading.
The supporting soil shall be compacted to support the wetwell
with a factor of safety of two (2).
I. Piping, Valves and Accessories
Pump station main line piping shall be Ductile Iron Pipe (D.I.P.)
with Flanged joints unless otherwise specified by Engineer.
Flanges shall either be welded or threaded to the connecting
pipes. All fasteners inside the wetwell shall be stainless steel.
Check valve shall be flanged end swing check valve with outside
lever arm and spring, as manufactured by Clow Valve Co., Mueller
Co., or approved equal. Reference City of Ocala Water and Sewer
Construction Manual Specification 493.5.11.3
Gate valve shall be resilient wedge flanged end gate valve with full
port opening with handwheel operator, as manufactured by Clow
Valve Co., Mueller Co., or approved equal.
A one quarter inch (¼”) NPT tap, nipple and WIKA Stainless steel
body pressure gauge with HYETT model 42MW diaphragm seal
and ½” Apollo 76-100 series stainless steel shut off ball valve or
approved equal.
PART 3 - EXECUTION
3.01 INSTALLATION:
Structure installation shall be to line and grade as indicated on the plans.
Foundation preparation for the wetwell shall obtain a minimum 98%
compaction and be leveled on a bead of gravel. Backfill around all
structures to a density sufficient to not allow noticeable settlement.
Dewatering and/or sheeting to facilitate pump station installation shall
be included in the contractor scope of work. Wetwell may be installed “In
the Wet” with engineer approval.
Contractor shall protect all adjacent structures and equipment, if existing,
and work to reduce excessive open cut and overnight open excavations.
Installation of equipment, piping, and valves shall be in strict
conformance with manufacturer's recommendations, plans, and
specifications.
Electrical equipment shall be installed by a state licensed electrician.
Contractor shall coordinate with local power company to facilitate
permanent electrical hookup.
3.02 ACCEPTANCE TESTS:
A. After installation of equipment and after completion of services of
manufacturer's representative, operate unit under normal
operating conditions to demonstrate its ability to operate
continuously without vibration or overheating and to perform its
specified function satisfactorily within five (5) percent of rating.
Failure to meet aforementioned requirement is cause for
rejection.
B. Correct defects and defective equipment promptly or replace at
no additional expense to Owner. Make final adjustments
necessary to place equipment in satisfactory working order at
time of above tests.
3.03 SPARE PARTS:
Deliver to owner spare upper and lower mechanical seals of the pump.
3.04 WARRANTY:
The pump manufacturer shall warrant all equipment supplied for a
minimum of three (3) years from the date of acceptance.
SECTION 03000-2 CAMEO WATERSHED STORMWATER FORCEMAIN
COMPONENT PROJECT - PART 2
SECTION 3100-2 GENERAL
1. This section covers supplemental technical specifications not covered in the
standard specifications.
2. The City of Ocala "General Conditions for Construction", Volume I and "Standard
Specifications for Water and Sewer Construction", Volume III, along with FDOT
Standard Specifications for Road and Bridge Construction, latest edition, shall
govern the execution of this Component Project - Part 2 as specified and
amended by these Contract Documents.
3. Air Release Valve assembly shall be installed above ground within plastic housing
as shown on the drawings. Valve shall conform to material specification 499-10-
99-02 for 2" plastic Air Release Valve.
4. Valve boxes used for locate wire terminals (material specification 479-03-06-02)
shall have lid furnished with the word "STORM" on the cover to indicate the use
of the locate wire system for stormwater.
SECTION 03000-3 CAMEO POND STORMWATER PUMP STATION
COMPONENT PROJECT - PART 3
SECTION 3100-3 GENERAL
1. This section covers supplemental technical specifications not covered in the
standard specifications.
2. The City of Ocala "General Conditions for Construction", Volume I and "Standard
Specifications for Water and Sewer Construction", Volume III, along with FDOT
Standard Specifications for Road and Bridge Construction, latest edition, shall
govern the execution of this Component Project - Part 3 as specified and
amended by these Contract Documents.
3. Valve boxes used for locate wire terminals (material specification 479-03-06-02)
shall have lid furnished with the word "STORM" on the cover to indicate the use
of the locate wire system for stormwater.
4. Provided hereinafter is the Geotechnical Report for the project site as provided
by Geo-Technologies, Inc. (Geo-Tech) dated September 19, 2014, Project No. 14-
4583.15.1 Rev. A.
SECTION 3200-3 CONCRETE
1. Refer to SECTION 3200-1 for Concrete Specifications.
SECTION 3300-3 EARTHWORK
1. Refer to SECTION 3300-1 for Earthwork Specification.
SECTION 3400-3 STRUCTURAL STEEL, MISCELLANEOUS METALS, AND GRATINGS
1. Refer to SECTION 3400-1 for Structural Steel, Miscellaneous Metals, and Gratings
Specifications.
2. Section 9. Access Hatches shall be replaced as stated below:
Access hatches shall be provided for all openings in the top slab for the wet well.
Each hatch shall include an access frame complete with hinge and slide bar
equipped covers. Hatch shall include lockable, hinged protective grating panel.
Grating panel shall be powder coated the color "safety orange". Each wet well
hatch frame and cover shall be constructed of aluminum and designed for a live
load of 300 pounds per square foot. Hatches shall be watertight. Hatch doors
shall be of aluminum check plate with reinforcing ribs to meet design criteria. All
hardware shall be stainless steel. Hatches shall be as manufactured by Halliday
Products, Bilco Company, or equal.
SECTION 3500-3 ALUMINUM FENCING
1. Refer to SECTION 3500-1 for Aluminum Fencing Specifications.
SECTION 3620-3 SUBMERSIBLE SEWAGE PUMPS
1. General
Requirements for submersible sewage pumps shall be in accordance with
specifications within the City of Ocala "Standard Specifications for Water and
Sewer Construction", Volume III, latest edition.
2. Revisions to Standard Specifications for Water and Sewer Construction
Section 493.5.5 Manufacturer shall be amended as written below:
Approved manufacturers of submersible pumps shall be ABS or Flygt.
Section 493.5.9.3.14 Pump Performance Requirements shall be amended as
written below:
The pumps furnished shall meet the Performance Criteria written below. The
pump discharge bases and rail systems furnished shall be capable of supporting
pumps for installation and removal. Rail systems shall be sized as recommended
by pump manufacturer.
Performance Criteria:
Listed below are the minimum performance requirements for the submersible
pumps. Pumps selected by contractor not able to meet the flow rates listed shall
be rejected for use. The Horsepower listed is a maximum which may be provided
by the emergency power generator. Pumps requiring additional horsepower
shall be rejected for use.
Pump 1 shall operate with the following design conditions:
GPM 2500
HP 30
RPM 1750
Total Dynamic Head 25'
Pumps 2 and 3 shall each operate with the following design conditions:
GPM 5000
HP 70
RPM 1750
Total Dynamic Head 38'
3. Pump Placement
Pump 1 shall be placed in the middle of the wet well as indicated on the
drawings. Pump 2 shall be placed on the left side viewing the station from NE 7th
Lane (Northeast). Pump 3 shall be placed on the right side viewing the station
from NE 7th Lane (Southwest). All controls in the control panel shall reflect
operation for this pump placement orientation.
SECTION 3700-3 BASIC ELECTRICAL MATERIALS AND METHODS
1. PART ONE - GENERAL:
1.1 SECTION INCLUDES
A. Raceways, Conduit and fittings, Conduit supports and assembly hardware.B. Wires and CablesC. BoxesD. Wiring devicesE. Cabinets and EnclosuresF. Wire connectors G. PanelboardsH. Overcurrent Protective DevicesI. TransformersJ. Secondary GroundingK. Light Fixtures
1.2 SCOPE:
A. The work to be governed by this section shall include furnishing all labor, material, equipment andservices to construct and install all electrical system(s) as shown on the accompanying plans andattached specifications.
B. Includes But Not Limited To1. General electrical system requirements and procedures.2. Perform excavating and backfilling work required by work of this Division as described in
Contract Documents.3. Make electrical connections to equipment provided under other Sections.
C. Products Supplied But Not Installed Under This Section1. Anchor bolts and templates for equipment bases only.
1.3 RELATED DOCUMENTS:
A. These specifications are supplemental to the City of Ocala Water & Sewer Construction Manual.B. All other Sections 3700-3 and 3800-3 series.C. The other Contract Documents complement the requirements of this Section.
1.4 REFERENCES:
A. Codes and Standards: Work shall be performed in accordance with all Local, State and FederalCodes adopted by the State of Florida and the Local authority having jurisdiction over this project,include as a minimum:1. Florida Building Code - Building, 2010 Edition W\ 2012 Supplements.2. Florida Building Code - Test Protocols for High Velocity Hurricane Zones, 2010 Edition.3. Florida Building Code - Accessibility, 2010 Edition W\ 2012 Supplements.4. Florida Building Code - Energy Conservation, 2010 Edition W\ 2012 Supplements.5. Florida Building Code - Plumbing, 2010 Edition.6. Florida Building Code - Mechanical, 2010 Edition.7. Florida Fire Prevention Code (FFPC), 2014 Edition.8. National Electric Code - NFPA 70, 2008 Edition.
3700-3-1
1.5 SUBMITTALS:
A. Submit Shop Drawings and Manufacturer’s Product Data in compliance with the GeneralConditions and the following, for all Electrical Sections. Data to be provided to the Prime Engineerfor review by the MEP Engineer within thirty (30) working days after the signing of the GeneralContract with the Owner. All electrical submittal data shall be reviewed and accepted prior toapproval of the General Contractor's first draw request.
B. Submittal data may be provided in hard copy paper form or in Digital form. If the contractorchooses to supply Digital Data the Format and Organization requirements described insubparagraphs D & E below, apply with the following:1. Digital Submittals shall be assembled into a single generic PDF format file that is viewable
by multiple platforms. PDF File shall be a PDF/X, PDF/A or PDF/E (PDF 1.7) format free ofall Adobe XML Forms Architecture and Java Script. PDF 2.0 files are not acceptable.
2. Digital Submittals shall meet all the same requirements for organization and presentation ashard copy bound submittals.
3. Provided Manufacturer’s Product Data and Shop Drawings for each specification section asa single complete, indexed section in the submittal. Partial submittals will not be acceptedbut will count as a billable review.
4. Digital files may be transferred via e-mail or FTP Site and the contractor is required toprovide a CD or DVD disk as a hard copy back-up.
5. Digital submittals will be organized in the same manner as bound copy submittals, contractor is to review and incorporate all bound copy instructions in to the digital submittal.
6. Scanned images may be incorporated into the submittal, however; they shall be clear,completely and legible. Pages shall be oriented within not more than 2 degrees ofmisalignment. Illegible submittals will be rejected and count as a billable review.
C. Each submittal package shall be in an individual vinyl-covered 3-ring binder (or CD). Each sectionof the submittal shall correspond with the Specification Sections and shall be separated with tabbeddividers. Failure to follow this procedure will likely delay processing of submittals. Binders shallbe provided with cover page listing the following information:1. Project Name2. Verrando Engineering Co., Inc. Project number as listed on the drawings.3. Name, address, phone no. and FAX no. of General Contractor4. G.C.'s Superintendent on this project and job site phone no.5. Name, address, phone no. and FAX no. of Electrical/Power System Contractor6. Electrical/Power System Contractor's Foreman on this project and job site phone no. (if any)7. List of Exceptions to and Deviations from the Contract Documents.8. The Electrical Contractor shall identify equipment and indicate the lead time (time required
from date of order to date of delivery) required by the manufacture for any electricalequipment requiring a lead time of greater than four weeks. If all electrical equipment for thisproject has a lead time of less than four weeks the Electrical Contractor shall note it with aone sentence statement on this page.
D. Shop Drawings:1. Shop drawings shall be submitted on all major pieces of electrical equipment including Motor
Control Panels, Panelboards and Transformers. Indicate precise equipment to be used,including all options specified. Indicate wording and format of nameplates where applicable.
2. Where shop drawings are called for, drawings shall be drawn to ANSI standards and includeproduct dimensions, schematics and all information to convey operation of the electricalequipment.
E. Manufacturer’s Product Data: Where product data is called for, provide 8-1/2" x 11" sheets ofstandard product literature. This literature shall include as a minimum; catalog ordering number(with all options clearly listed), weight, dimensions, installation instructions, maintenanceinstructions, special instructions, and other pertinent data as necessary for a complete descriptionof each item of equipment. Specific data requirements listed in the sections to be included.
3700-3-2
1. Where product data sheets include more than one item and were items not being submittedare shown, each item being submitted is to be clearly identified by an arrow, high lighter orbox. Where data sheets include items not germane to the project have not been marked,the submittal will be rejected and count as a billable review.
2. Provide specific information listed in each Section for each item of equipment in that Section. Generally provide the following:a. Catalog Sheets.b. Assembly details or dimension drawings.c. Installation instructions.d. Manufacturer's name and catalog numbere. Name of local supplier.
F. Submit manufacturer's product data for the following items under this Section.1. Raceways2. Conduit and fittings: PVC, Rigid Metal, I.M.C., E.M.T. - PVC Coated RMC and Aluminum3. Conduit supports, Unistrut and assembly hardware.4. Wires and Cables5. Boxes6. Wiring devices7. Cabinets and Enclosures8. Wire connectors9. Panelboards (include panel schedule with bill of materials)10. Transformers11. Surge Protection Devices (SPD)12. Circuit Breakers13. Fuses14. Light Fixtures
G. Maintenance Manuals: Provide one (1) set for review at submittal time and two (2) final sets withcomments incorporated at job completion. Manuals shall be bound with a 3-ring binder (as aminimum) with index and thumb-tab markers and shall incorporate all sections into one commonbinder. Label binder with "OPERATION AND MAINTENANCE MANUAL", the name of the project,the name of the Contractor, and the contract number. 1. Include the names, addresses, and telephone numbers of each subcontractor installing the
equipment. 2. Include a table of contents and assemble to conform to the Project Manual (Specifications)
with tab sheets before instructions covering the subject. Instructions shall be legible andeasily read.
3. Include wiring and control diagrams, detailed explanation of operation and control of eachitem of equipment, description of the function equipment, installation instructions,maintenance instructions, lubrication schedules (including type, grade, temperature rangeand frequency, safety precautions, diagrams and illustrations, test procedures, performancedata and parts lists.
1.6 QUALITY ASSURANCE:
A. Qualifications:1. The Electrical Contractor shall have had experience of at least the same size and scope as
this project, on at least two other projects within the last five (5) years in order to be qualifiedto bid this project. This qualification shall also apply to his subcontractors.
2. Workmen shall be experienced in their respective trade. All work performed shall becompleted in a professional manner and of premium quality, as judged by the Engineer. Substandard work shall be removed and replaced at the Electrical Contractor's expense.
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B. Warranty:1. Contractor shall and does hereby warrant all materials and equipment furnished under this
Electrical of the specifications to be free from defects and to function or operate satisfactorilyfor a period of one year after final acceptance of the work and that any items not meeting thisrequirement will be made good by him without cost to the Owner, provided such defects orfailures are not due to abuse, neglect or lack of reasonable and ordinary maintenance.
2. All equipment (unless otherwise specified), material and labor shall be guaranteed for aperiod of 12 months from the date of final completion and acceptance, unless specifiedotherwise in other Sections. Any defects arising within this period shall be repaired and/orreplaced at no cost to the Owner.
C. Storage Of Materials:1. Special care shall be taken for the protection of equipment furnished. Equipment and
material shall be completely protected from weather elements, painting, plaster, etc., until theproject is completed. Damage from rust, paint, scratches, etc., shall be repaired as requiredto restore equipment to original condition.
2. Where the installation or connection of equipment requires work in areas previously finishedby other Contractors, the area shall be protected and not marred, soiled or otherwisedamaged during the course of such work. Contractor shall arrange with other Contractorsfor repairing and refinishing of such areas which may be damaged.
D. Record Drawings:1. The Contractor shall maintain one set of “red lined” construction documents in the field office
as a record of as-built conditions. Maintain records daily using colored pencil or pens,indicating: all changes from drawings, actual field measurements of other services affectingelectrical work, location and field measurements of electrical services (conduit andprovisions) and equipment and any other information pertinent to electrical work beingperformed. At completion of construction, contractor will be provide all as-built informationto the Engineer for inclusion on Record Documents for the Project.
2. Show as-built information to scale using standard symbols listed in the legend. As aminimum requirement, indicate as-built information including, but not limited to, the following:a. Locations of stub-outs, dimensioned from permanent building lines.b. Locations and depth of under-slab and in-slab raceways.c. All routing of raceways.d. Corrected panelboard and equipment schedules.e. Corrected circuit numbers as appearing on Directory.f. Corrected motor horsepower of FLA Data.g. All underground conduit, pipes, and wires discovered or installed during construction,
that are to remain.
2. PART TWO - PRODUCTS:
2.1 RACEWAYS:
A. Electrical contractor shall provide complete and separate raceway system(s) for all electricalsystems, as specified herein, shown on the plans and/or implied in any other sections of thespecifications. Unless otherwise noted, raceway systems shall be constructed of conduit. Unlessotherwise noted, raceway systems shall be continuous throughout.
B. Raceways shall be of ample size to permit the ready insertion and withdrawal of conductors, wiresor cables without abrasion or restriction.
C. PVC Coated Rigid Metal Conduit: PVC coated galvanized rigid steel conduit shall meet thedimensions, weight and welding requirements of the ASA standards and UL 6 (E2314); UL 6A(E98405). Conduit shall be coated with a 40 mil grey PVC coating on the exterior and a 2 mil red
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urethane interior coating. Conduit shall be manufactured by Calpipe Industries, Inc. (Calbond),Robroy Industries, Inc. (Plasti-Bond), Thomas & Betts, or approved substitution.1. Joints and Fittings: shall be PVC coated galvanized rigid steel threaded type fittings all with
U.L. label. Fittings to be manufactured by the same firm as the conduit sections.2. Elbows: Provide standard radius (unless otherwise noted on Drawings) factory fabricated
PVC coated elbows, field bending is not acceptable. Acceptable manufacturers: Same asconduit.
D. PVC Conduit: 1. Below Grade: Schedule 40, TC-2, Gray, and shall be UV stabilized. PVC conduit shall be
U.L.. Listed for direct burial.2. Above Grade in Exterior Locations: Schedule 80, TC-2, Gray, and shall be UV stabilized.
PVC conduit shall be U.L.. Listed for direct burial.3. Elbows:
a. 2-1/2 Inch and Larger - 24 inch Long Radius, Schedule 80, TC-2, Gray, and shall beUV stabilized. PVC conduit shall be U.L.. Listed for direct burial.
b. 2 Inch and Smaller - Standard Radius, Schedule 40, TC-2, Gray, and shall be UVstabilized. PVC conduit shall be U.L.. Listed for direct burial.
E. Flexible Liquid Tight Conduit: shall consist of a moisture and oil proof jacket extruded over agalvanized steel flexible conduit as manufactured by Sealtite.1. Connectors-rain-tight: Meyers or approved equal.2. Water tight flex connectors: Efcor, Raco, or Midwest liquid tight, with insulated throat.
F. Conduit clamps and supports: Shall be manufactured by Efcor, Steel City, or G.A. Tinnerman.
G. Sleeves: passing through walls or floors on or below grade or in moist areas shall be constructedof galvanized steel, schedule 40 pipe and shall be designed with suitable flange in the center toform a water proof passage. After the conduit has been installed in the sleeves, the void spacearound the conduit shall be caulked or water proof.
2.2 CONDUCTORS, WIRES, AND CABLES:
A. The Electrical Contractor shall provide and install a complete wiring system as shown on the plansand/or specified herein.
B. The wire shall be delivered to the site in its original unbroken packaging, plainly marked or taggedas follows:1. Size, kind and insulation of the wire.2. Underwriter's labels3. Name of the manufacturing company and trade name of the wire.
C. Manufacturers: Provide wire and cable manufactured by Cyprus, General Electric, Okonite,Triangle, Phelps-Dodge, Anaconda, General Cable, Beldon or approved equal.
D. Materials and Insulation: Provide conductors made from 98% copper. Insulation types shall beas follows for the location of installation.1. Interior wiring, above slab in conduit & dry locations: THHN, THWN, THW2. Interior wiring, below slab in conduit: THWN3. Exterior wiring, in conduit or damp locations: THWN4. Exterior wiring, exposed RHW5. Overhead Service Conductors: THW6. Underground Service Conductors: THWN
E. General use: #12 and #10 AWG, solid or stranded copper conductors with nylon jacketed, PVCinsulation type THHN or THWN. No wiring less than #12 AWG to be used for lighting or receptaclecircuits. If distance from electrical panel to first fixture exceeds 70 feet, use #10 AWG.
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F. Conductors Type: Provide stranded copper conductors for all sizes no. 8 and larger.
G. Vibrating equipment: Stranded with nylon jacketed, PVC insulation type MTW -90 degrees C.
H. Control wire: #14 AWG, 19 strand copper conductor, with .015 Inch polyvinyl chloride insulation,.004 Inch nylon jacket, type THHN, rated 90 degrees C, full color range.
I. Analog Signal Cable: 16 AWG - Twisted Shielded Pair (2 Str, Cu, W\ Overall Shield), for UG Inst,300 Volt Rated, Overall Cable Diameter 0.328'' Nom. West Penn - AQ294, or Belden - 5240F1.
2.3 BOXES:
A. Exterior work: 1. Above Grade Exterior Locations:
a. 1-1/4 Inch and Larger - Molded Nonmetallic Junction Boxes, NEMA 6P, UV stabilizedPVC, Gray w\ PVC cover, weather seal and Stainless Steel Screws.
b. 1 Inch and Smaller - Standard single or two gang, Type FS, UV stabilized PVC, Gray.2. Below Grade: Direct Burial Enclosures made from Polymer concrete sized for one full size
larger than code minimum with traffic rated cover, unless otherwise note on plan.
2.4 PULL BOXES AND HANDHOLES:
A. Precast Concrete Handholes: Provide precast handholes formed out of 28 day concrete with acompression 4500 PSI. Handholes shall be provided with steel 1/4 inch thick traffic covers, openbottom. Covers shall have beaded weld lettering identifying the system enclosed. Refer toDrawings for box sizes, Special Configurations, Loading Requirements and other installationcriteria. Provide products by Del Zotto Products of Florida, Mack Concrete Industries, OldcastlePrecast, Southern Precast, Pre Cast Specialties or approved substitution.
B. Polymer Concrete (PC) Handholes: Where specified provide pull boxes and handholes may bemanufactured from Polymer concrete made from selectively-graded aggregates in combination witha polymer resin system, combined through a process of mixing, molding and curing. Precastpolymer concrete is to be reinforced with fiberglass for exceptional strength and rigidity. Enclosures, boxes and covers are required to conform to all test provisions of the most currentANSI/SCTE 77 “Specification For Underground Enclosure Integrity” for the appropriateapplications. Handholes shall be provided with steel 1/4 inch thick traffic covers, open bottom. Covers shall have beaded weld lettering identifying the system enclosed. Refer to Drawings forbox sizes, Special Configurations, Loading Requirements and other installation criteria. Provideproducts by Hubbell (Quazite), Communications Products and Services, Inc, Armorcast ProductsCorporation, Oldcastle Precast or approved substitution.
2.5 DEVICES:
A. General: Provide receptacles and wall switches with cover plates as shown on the plans and/orspecified herein. Unless otherwise noted, device grades shall be industrial specification grade.
B. Manufacturers: Devices shall be provided by Hubbell, Leviton, Arrow Hart or Bryant.
C. Cover plates: Cover plates shall be of one piece construction, no sectional plates shall be allowed.
D. Switches: Provide switches of the type and in locations as shown on the plans. Switches shall berated for 120-277 volts, 20 amps as a minimum unless otherwise specified on the plans. Allswitches shall be of the silent type and U.L. Tested for compliance with Federal Specification W-S-896F (50,000 on-off cycles).
E. Receptacles, General Duty: Provide receptacles as shown on the plans or specified herein. 1. Receptacles, Water Proof: Provide 120 VAC, 20 Amp Ground Fault Circuit Interrupter type
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receptacle with Zinc die-cast covers at all outside receptacle locations and where shown onthe plans.
2. Receptacles, GFI:a. Unless otherwise noted or approved, provide 120 VAC, 20 Amp, GFI receptacles:
1) In residential garages.2) At accessible interior locations within (6) feet of a water source or water
containment area.3) In areas subject to high concentrations of moisture.4) Where specified herein or shown on the plans.
b. The practice of using a GFI receptacle to protect an entire circuit is not acceptable inthis project.
2.6 CABINETS AND ENCLOSURES:
A. Provide cabinets, enclosures and electrical support racks as required, specified or shown on plans.
B. All cabinets and enclosures shall be NEMA-3R or 4X, Stainless Steel (no substitutions).
2.7 SUPPORTING DEVICES:
A. Conduit Hangers and Supports: Conduit throughout the project shall be securely and rigidlysupported to the building structure in a neat and workman-like manner and wherever possible,parallel runs of horizontal conduit shall be grouped together on adjustable trapeze hangers.Suspended support spacing shall not exceed (8) feet.1. All conduit and electrical equipment supports shall be 316 stainless steel, supported by one-
hole malleable straps, two-hole straps, suitable beam clamps or split-ring conduit hangerswith support rod. All materials fittings and supports to be made from stainless steel,galvanized steel is not acceptable.
2. Single conduit 1-1/4 inches and larger run concealed horizontally shall be supported bysuitable beam clamps or split-ring conduit hangers with support rod. Multiple runs of conduitshall be grouped together on trapeze hangers where possible. Vertical runs shall besupported by steel riser clamps spaced at (6) feet (minimum).
3. Conduit one inch and smaller run concealed above a ceiling may be supported directly to thebuilding structure with strap hangers or No. 14 Ga. galvanized straps, provided the supportspacing does not exceed (4) feet.
B. Stainless Steel Conduit Hangers and Supports: Provide stainless steel strut designed for theframework and support for conduit systems, with slotted hole configuration for attachment atvarious points without drilling. Provide with fittings as required for the installation. Unless otherwisenoted on Drawings, strut shall be 1-5/8” x 1-5/8” (deep) x 12 Gauge strut, Type 316 SS. Strut shallbe manufactured by Gibson Stainless & Specialty, Inc., All Fasteners USA, Eaton B-Line, Anvil, orapproved substitution.
2.8 CLASSIFIED AREAS:
A. Devices and equipment installed in classified areas shall be U.L. Listed for use in hazardous areas.Devices shall meet all the requirements of the division, class and group of the classified area(s).
B. All wiring, conduit and electrical equipment in classified areas must conform to applicable articlesof the National Electric Code (NEC).
C. Each conduit run leaving a Class I, Division 2 hazardous area must have a seal fitting installed. The seal fitting should be within six inches of the boundary between the hazardous and nonhazardous area. Seal offs should be located in the hazardous area whenever possible. Verticalseal offs are preferred. No union, coupling, box or fitting in the conduit shall be permitted betweensealing fittings and point where the conduit leaves the hazardous location. Seal offs shall beinstalled following manufacturer’s recommendations.
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2.9 ELECTRICAL IDENTIFICATION:
A. Provide Identification Placards on all major pieces of electrical equipment including: panelboards,branch breakers on Main Distribution Panels, lighting contactors, time clocks, transfer switches anddisconnect switches. Placards shall be engraved, rigid laminated plastic type with adhesive back. Unless otherwise noted, color shall be black with 3/16 inch, white letters. Placard dimensions andconfigurations shall be per the details shown on the plans.
2.10 PANELBOARDS:
A. General: Provide and install panelboards as specified on the panel schedules and in the locationsshown on the plans. Panelboards shall be equipped with thermal-magnetic molded case circuitbreakers with frame and trip ratings as shown on the schedule. 1. All panelboards shall be NEMA-3R with stainless steel enclosures.2. The Engineer reserves the right to change the trip amp rating, number of breaker poles and
location of circuit breakers on panelboards during the submittal process. These changesshall be accomplished at no additional cost provided the trip amp rating does not exceed theframe rating of the breaker and that the number of breaker poles equal the number ofspecified poles spaces (three single pole breakers are the same as one three pole breaker).
3. Panelboards that are series-rated shall have circuit breakers installed that are UL Listed assuitable for use in combination with the series-rated panel board assembly and shall belabeled on the panel board. The panelboard shall be clearly labeled indicating its AIC rating.
B. Acceptable Manufacturers: Provide all components of the electrical power distribution system asspecified under this sections, from only one of the following:1. Square-D Company2. Seimens3. General Electric
C. Branch Circuit Panelboards:1. General: Provide Square-D, Type QO panels with plug-on circuit breakers in all locations
where the feeder voltage is 240 volts or less.2. Main Circuit Breaker: Where specified provide main circuit breakers of the size listed on the
panel schedule. Provide thermal-magnetic molded case circuit breakers with a minimumampere interrupting capacity of 22,000 RMS symmetrical amps.
3. Circuit Breakers: Provide plug-on thermal magnetic, molded case circuit breakers with aminimum A.I.C. rating of 10,000 RMS symmetrical amperes.
2.11 TRANSFORMERS:
A. General: Provide and install, dry-type transformers of the KVA rating, primary and secondaryvoltage ratings indicated on the electrical plans.1. Transformers shall be 480 volt single phase primary, 240/120 volts single phase secondary,
dry type with NEMA 3R stainless steel enclosure. Transformers shall have multiple fullcapacity taps for voltage adjustment.
2. Transformers 10 KVA and above shall be rated for operation at 150 deg C temperature riseabove 40 deg C ambient. All insulating materials to be in accordance with NEMA ST20Standard for 220 deg C UL component recognized insulation system.
3. The core of the transformer shall be visibly grounded to the enclosure by means of a flexiblegrounding conductor sized in accordance with applicable NEMA, IEEE and ANSI standards.
2.12 SURGE PROTECTION DEVICES (SPD):
A. Provide Surge Protection Devices (SPD) of the type and rating as listed on the drawings. Surgesuppressors shall be installed per the manufacturer's instructions and this specification and beprovided with the following:1. SPD shall be UL labeled with 200kA Short Circuit Current Rating (SCCR). Fuse ratings shall
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not be considered in lieu of demonstrated withstand testing of SPD, per NEC 285.6. 2. SPD shall be UL labeled as Type 1 (verifiable at UL.com), intended for use without need for
external or supplemental overcurrent controls. Every suppression component of every mode,including N-G, shall be protected by internal overcurrent and thermal over temperaturecontrols. SPDs relying upon external or supplementary installed safety disconnects do notmeet the intent of this specification.
3. SPD shall be UL labeled with 20kA I-nominal (I-n) (verifiable at UL.com) for compliance toUL 96A Lightning Protection Master Label and NFPA 780.
4. Suppression components shall be heavy duty 'large block' MOVs, each exceeding 30mmdiameter.
5. SPD shall provide surge current paths for all modes of protection: L-N, L-G, L-L and N-G forWye systems; L-L, L-G in Delta and impedance grounded Wye systems.
6. UL 1449 Listed Voltage Protection Ratings (VPRs) shall not exceed the following:System Voltage L-N L-G L-L N-G480Y/277 1200V 1200V 1800V 1200V
(Mode VPRs verifiable at UL.com. Numerically lower is allowed/preferred; old-styleSuppressed Voltage Ratings (SVRs) shall not be submitted, nor evaluated due to outdatedless-strenuous testing)
7. UL 1449 Listed Maximum Continuous Operating Voltage (MCOV) (verifiable at UL.com):8. System Voltage Allowable System Voltage Fluctuation (%) MCOV
480Y/277 15% 320V9. SPD shall include a serviceable, replaceable module (excluding Branch). 10. SPD shall have UL 1283 EMI/RFI filtering with minimum attenuation of -50dB at 100kHz.11. SPD shall include visual LED diagnostics including a minimum of one green LED indicator
per phase, and one red service LED. SPD shall include an audible alarm with on/off silencefunction and diagnostic test function (excluding branch).
12. NEMA enclosure listed on drawings13. Acceptable Manufacturers:
a. Square-D Companyb. Seimensc. Advanced Protection Technologies (APT)d. MCG Electronics Inc.e. L.E.A. Dynatech
B. Main and Pump Control Panels rated 250 Amps and greater:1. Minimum surge current capability (single pulse rated) per phase shall be: 100kA2. Basis of Design: 480Y/277 - Square D Model: TVS4HWA10X.
C. Branch Panels rated less than 100 Amps:1. Minimum surge current capability (single pulse rated) per shall be: 100kA2. Basis of Design: 120/240 - Square D Model: TVS120XR50S.
2.13 LIGHT FIXTURES:
A. Lighting fixtures listed on the Light Fixture Schedule are the basis of design. Substitutions will beconsidered if proposed substitute fixtures are submitted for review 10 days prior to bid and areequivalent to specified items in all respects.
B. Surface Mounted LED Fixtures: Provide commercial grade surface mounted LED, fixturesconstructed of fiber-reinforced plastic (FRP) or fiberglass housing with stainless steel hardware andUV stabilized polycarbonate lens, unless otherwise specified. LED characteristics as specified onthe Light Fixture Schedule.
C. Pole Mounted Luminaries: Provide commercial grade pole mounted fixtures as indicated on the Light Fixture Schedule. Luminaries to have IES distribution, lumen output, color rendition andphotometric characteristics to match the specified items. 1. Luminaries shall be constructed of die-cast aluminum housing, stainless steel external
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hardware and UV stabilized polycarbonate reflector, color as specified.2. Luminaries shall be equipped with LED light source.3. Fixtures shall be UL Listed suitable for wet locations unless otherwise noted. 4. All pole and luminary combinations shall be designed to withstand wind loads listed on the
Drawings.5. Provide mounting arms, mounting hardware, trim, and all miscellaneous materials to provide
a proper installation. 6. Mounting height shall be as listed on the Drawings or as determined by the Engineer.
D. Concrete Poles: Provide concrete poles of the Type, Size, Shape, Structural Class as listed on theLight Fixture Schedule. Concrete poles shall be All Concrete poles shall be:1. Pre-stressed Cast Concrete, with a 4" x 6" handhole located 18" above finished grade.2. Constructed with two PVC Conduit inside, one for electrical power to the Luminaries and one
for the Lightning Down Conductor.3. Provide with a stainless steel handhole cover, fastened with stainless steel tamper resistant
screws, and bonded to ground with flexible braid copper of the same size as theequipment-grounding conductor.
4. Natural concrete color, unless specified otherwise.5. Manufactured by: Stresscrete Group, Traditional Concrete, Inc. Pre-Cast Specialties, Inc.,
or Seminole Pole, Inc.
E. Submit certified calculations for all pole and luminary combinations to demonstrate compliance withflorida building code wind load criteria specified on the Drawings. Certified calculations to beprovided bearing the signature and seal of a florida registered structural engineer and per ASCE7 – 2010 Edition with the minimum required design wind load criteria shown on the Drawings. These calculations are to be accepted by the Engineer as complying with the specifiedrequirements for the installation prior to placement of any orders.
3. PART THREE - EXECUTION:
3.1 LOCATION CHECKING:
A. This contractor shall coordinate his work with all trades involved so that exact locations may beobtained for all outlets, apparatus, appliances and wiring.
B. The location of outlets are diagrammatic and shall be considered as approximate. It shall be theresponsibility of this contractor, before installing outlet boxes, to study all pertinent drawings andobtain precise information from the architectural schedules, scale drawings, large scale and detailof finished rooms, approved shop drawings of other trades or from the engineer.
C. It shall be understood that any device (at the request of the Engineer) may be relocated a distancenot to exceed twenty (20) feet from the location shown on the drawings.
D. This contractor shall make any necessary adjustment of his work to fit conditions for recessedfixtures and for outlets occurring in glazed tile, block, terra cotta, marble, wood paneling or otherspecial finish material in order that all boxes may register flush with finish and shall be centeredproperly.
E. Connections to equipment incorrectly located shall be properly relocated at the contractor'sexpense.
F. Local switches which are shown near doors shall be located at the strike side of the door as hung,regardless of swing on the drawings.
G. Any relocation of devices resulting from failure to follow this procedure shall be performed by thecontractor at no additional cost to the owner.
3.2 INSTALLATION OR CONNECTION OF ELECTRICAL EQUIPMENT:
A. The Electrical Contractor shall provide and install all conduit, wire, devices and/or miscellaneouselectrical materials for electrically powered or controlled equipment, whether installed by thisContractor or not. The installation and/or connection of the Equipment shall be complete, adhering
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to all applicable Electrical specifications, manufacturer’s instructions, equipment nameplate data,and as required by governing codes.
B. The Electrical Contractor shall receive and properly store the equipment and material associatedwith his/her scope of work. The equipment shall be tightly covered and protected against dirt,water, chemical or mechanical damage, and theft. The manufacturer's directions shall be followedcompletely in the delivery, storage, protection, and installation of all equipment and materials.
C. It shall be the responsibility of the Electrical Contractor to clean electrical equipment, makenecessary adjustments and place the equipment into operation before turning equipment over tothe Owner. Any paint that was scratched during shipping or erection shall be "touched-up" with"factory-color" paint to the satisfaction of the Architect. Any items that are damaged beyond repairduring shipment or erection shall be replaced.
3.3 CONCRETE PADS, SUPPORTS AND ENCASEMENT:
A. The Electrical Contractor shall be responsible for all concrete pads, supports, piers, bases,foundations and encasements required for the installation of electrical equipment and conduit. Concrete pads shall be six (6) inches larger all around than the base of the equipment and aminimum of six inches thick unless specifically indicated otherwise. The pad shall have a one inchchamfer on all exposed edges. The pad shall be sloped three inches per one hundred feet toprevent water accumulation. The pad shall be reinforced with six inch square wire reinforcingmesh.
B. Unless otherwise noted or approved, transformer pads shall be surrounded by a ring of crushedstone ( approximately ½" in diameter) 18" wide and 3-1/2" deep, contained by a concrete curb 4"wx 8"h, raised 3-1/2" above final grade. Curb corners shall be chamfered one inch.
C. All concrete work is subject to the Engineer’s approval, unacceptable work shall be corrected orreplaced.
3.4 ELECTRICAL SYSTEM IDENTIFICATION:
A. General: All electrical systems shall be identified either through color coding with placards or bothas specified. All wiring shall be color coded for phasing as described in Section 3700-3, andlabeled for circuit number corresponding to circuiting on shop drawings.
B. Equipment Placards: Provide on all disconnect switches, panelboards, motor starters, controlpanels, each component of switchboards and other items of electrical supply equipment, includingspare equipment, engraved UV stabilized placards per Section 3700-3 of this specification.
C. Circuit labels: Identify all connected circuits with a typed panel schedule attached to the inside dooron all electrical panels. Circuit numbers shall be provided on the cover panel of the board adjacentto the corresponding breaker. If no such numbers have been embossed into the steel cover, thiscontractor shall provide engraved or printed labels to accomplish same. Spare circuits shall belabeled as such.
D. Raceways shall be marked at all junction points (boxes or panels), indicating the system(s) that isenclosed. Unless otherwise noted, system identification text may be made using a blackpermanent ink magic marker. All text shall be easily read from a distance of ten feet or greater.
E. Control panels: all control panels shall have a laminated schematic diagram and a laminatedequipment list (listing the manufacturer and model of all electrical components housed within thecontrol panel) attached to the inside surface of the front door. A typed directory indicatingequipment controlled and/or monitored by the panel, electrician that installed the panel, electricianthat assembled the panel and the date the panel was installed shall be attached to the insidesurface of the front door.
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3.5 INSTALLATION OF RACEWAYS:
A. General: Unless otherwise noted or approved, All conduit shall be concealed in walls, aboveceiling, in slab or underground. Underground conduit runs for receptacles and major power loadsare preferable to overhead runs. Conduit materials specified herein are minimum requirements,the electrical contractor may substitute materials of a higher quality without prior approval, IE; RigidMetal conduit for PVC, I.M.C. for E.M.T.
B. Unless otherwise noted or approved, metallic raceway systems shall be mechanically andelectrically continuous. Non-metallic raceways shall be mechanically continuous.
C. Exposed Conduit: Shall be run to or at right angles with the lines of the building. Schedule 80 PVCor Aluminum Rigid Metal Conduit shall be used above grade on the exterior of structures, storagetanks, and well pumps installations. Aluminum Rigid Metal conduit shall be used where exposedand where there exists a possibility of mechanical damage, such as; Shop and MaintenanceFacilities, Loading Docks and Parking Areas. Exposed conduit runs shall be parallel and/or at rightangles to building walls and/or partitions.
D. A No. 14 Ga. galvanized steel fish wire or 1/4 inch nylon rope shall be left in all conduit in whichpermanent wiring is not installed. Unoccupied conduit shall be capped with an approvedmanufactured conduit seal and labeled to indicate the destination, size and application (system)of the conduit.
E. During construction, conduit shall be capped with approved conduit seals as soon as installed andkept capped until ready for use.
F. Conduit shall be securely fastened to all sheet metal outlets, junction and pull boxes withgalvanized lock-nuts and bushings, care being observed to see that the full number threads projectthrough to permit the bushings to be drawn tight against the end of conduit after which the lock-nutshall be made sufficiently tight to draw the bushings into firm electrical contact with the box.
G. PVC Coated Rigid Metal Conduit:1. Penetrations through concrete floor slabs.2. Load side of all Variable Frequency Drives (unless otherwise noted on Drawings).
H. PVC Conduit: Unless indicated on the plans or specified otherwise, PVC Conduit may be permittedfor use as follows:1. For feeders, run below grade / slab elevation in light duty areas. 2. For exterior underground.
I. Flexible conduit:1. Flexible conduit shall be sealtite.2. Flexible conduit shall not exceed (6) feet in length.3. Flexible conduit shall be trimmed to avoid unnecessary or excessive slack. 4. Flexible conduit shall have a code sized insulated ground run within the conduit.5. Flexible conduit shall not be used as a means of support for electrical equipment.6. Flexible conduit shall be supported to avoid strain or tension on the conduit.7. Flexible conduit installed exterior shall be liquid tight, immune to the effects of sunlight and
connected with liquid tight fittings.
J. Metal conduit in direct contact with concrete shall be coated to inhibit the corrosive effects of theconcrete on the conduit.
K. Box Connections, Interior: Where Rigid and/or I.M.C. Conduits enter boxes, they shall be securedin place by approved lock nuts and bushings. Where E.M.T. enters boxes, they shall be securedin place with approved fittings.
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L. Box Connections, Exterior: Watertight conduit connectors shall be used on sheet metal cabinetsor enclosures subject to water intrusion.
M. Conduit Attachment: Fasten conduit securely in place by means of approved conduit clamps,hangers, supports and fastenings. Arrangements and methods of fastening all conduit shall besubject to Engineer's direction and approval. Galvanized wire may not be used to support conduit.
N. PVC Coated RMC:1. Fittings shall be PVC coating over listed galvanized steel conduit. PVC-coated raceways shall
be installed as a system, where the fittings, conduit bodies, straps, hangers, boxes, etc., areall coated or stainless steel.
2. Use tools specially designed for PVC-coated conduit. 3. Cutting shall be performed with a band saw. Perform threading per manufacturer’s
instructions and coat threads with an approved electrically-conductive, corrosion resistantcompound.
4. Provide factory fabricated elbows for all 45 and 90 degree bends in conduit, avoid fieldbending where ever possible.
5. Bending PVC - Coated Conduit: As a minimum, use an EMT bender one trade size largerthan the conduit being bent, to avoid damaging the coating. A bender with shoes madespecifically to bend PVC-coated conduit is preferred. Trade sizes 2 and larger should bebent with a hydraulic bender. Do not use lubricants on bending shoes.
3.6 SECURING OF BOXES, EQUIPMENT OR PANELS:
A. All equipment, boxes, or panels shall be securely mounted using approved methods and withapproved screws, bolts, and/or fasteners. Devices smaller than 50 cubic inches and weighing lessthan five pounds shall have a minimum of two mounting fasteners per device. Devices larger than50 cubic inches and/or weighing greater than five pounds shall have a minimum of four mountingscrews, bolts or fasteners per device.
3.7 INSTALLATION OF BOXES:
A. Openings made in masonry for the installation of boxes shall be saw cut.
B. Exterior Boxes: Outside boxes for switches, receptacles and devices shown on exterior of buildingwalls shall be installed in surface mounted boxes provided with weatherproof gasket flush covers.
C. Receptacle outlet boxes: 1. When the receptacle is mounted in a masonry wall, the bottom of the outlet box shall be in
line with the bottom of the masonry unit. 2. Receptacle outlet boxes shall be equipped with a grounding conductor which shall be
connected to the grounding terminal of the device and the grounding terminal of the boxunless the receptacle is designated as an isolated ground receptacle. In this case discreteinsulated ground conductors shall be run to the device ground terminal and the box groundterminal separately.
D. Surface fixture outlet boxes shall be set so edge of cover comes flush with finished surface. Surface fixture outlet boxes shall be secured to the supporting surface with a minimum of twomounting screws or bolts.
E. There shall be no more knockouts opened in any outlet box than are actually required.
F. Boxes shall be sealed during construction.
G. Provide junction boxes where shown on the drawings and as required to facilitate installation ofconductors. Such boxes shall be "code" sized unless required to be larger by the plans or othersections of this specification. All junction boxes shall be accessible.
3700-3-13
H. Boxes to be imbedded in concrete shall be properly leveled and anchored in place before theconcrete is poured. Install floor boxes per the manufacturer's instructions and recommendations.
I. Boxes shall be properly protected during construction and shall be cleaned of all foreign matterbefore conductors are installed.
3.8 SWITCH INSTALLATION:
A. Shall be checked by the contractor against the engineer’s plans and shop drawings to be certainthat switches are on the strike side of the door regardless of swing shown on drawings. Ensurethat a minimum of one inch clearance is maintained between trim(s) and face plates. Switchesshall be relocated as required and at no additional cost to the owner.
3.9 SURGE PROTECTION DEVICE:
A. The Electrical Contractor shall provide Surge Protection Devices where shown if specified herein.
B. The Electrical Contractor shall provide approved surge protection on all Data, Communication, FireAlarm, Programmable Logic Controls (PLC), Supervisory Control And Data Acquisition (SCADA)or miscellaneous systems with metallic conductors, that are subject to the effects of lighting orvoltage spikes. As a minimum this shall include but is not limited to all wires entering or leavingeach building and/or facility and each Main Control Panel.
3.10 INSTALLATION OF CONDUCTORS:
A. On wire #10 and smaller copper connections shall be made with T & B STA-KON wire joints, PTseries, complete with insulating caps and installed with WT161 tool or WT2000 tool, Ideal super-nuts (not wire nuts), Ideal wing nuts, or Buchanan elect. Products B cap or series 2000 pressureconnectors complete with nylon snap-on insulators and installed with C24 pressure tool.
B. On wire larger than #10, connection shall be made with approved solder-less connectors andcovered with Scotch #33 electrical tape so that insulation is equal to conductor insulation.
C. No power wiring conductor shall be smaller than #12 except where so designated on the drawingsor specified herein.
D. A common neutral shall not be used for return current of ungrounded conductors of the samephase.
E. Neutral conductors in raceways containing more than one circuit shall be marked at each splice,connection or junction box, to prevent the "crossing" of circuits.
F. No splices shall be pulled into conduit.
G. Both conductors and conduits shall be continuous from outlet to outlet.
H. No conductor shall be pulled until the raceway is clean of all foreign matter.
I. No lubricant other than powdered soapstone or approved pulling compound shall be used to pullconductors.
J. When installing parallel conductors, it is mandatory that all conductors be the same length, thesame size, the same type of conductor with the same insulation and terminated in the samemanner. Each set of conductors making up a phase or neutral must be bonded together at boththe load and supply end.
K. Circuits and branch circuits: outlets shall be connected to branch circuits as indicated on drawings
3700-3-14
by circuit number adjacent to outlet symbols. No more outlets than are indicated shall beconnected to a circuit.
L. Unless otherwise noted, underground electrical conductors shall be buried in conduit (24) inchesbelow final grade, primary conductors shall be buried in conduit (36) inches below final grade. Cover underground conductors with a (6) inch wide tape buried (12) inches below finished grade. The tape shall be red or orange with black lettering "CAUTION BURIED ELECTRICAL CABLESBELOW".
M. All underground conductors, wire, or cable shall be installed in conduit.
N. Non-ferrous identifying tags or pressure sensitive labels shall be securely fastened to all cables,feeders and power circuits in vaults, pull boxes, manholes, switchboards, panels, starters,terminations of cables, etc. Tags or labels shall be labeled to correspond with panel and circuitnumber, so the feeder or cable can be readily identified.
O. A color coding system as listed below shall be followed throughout the power conductor system. All ungrounded conductors sized #10 AWG and less and all grounded conductors sized #6 AWGand less shall be provided with colored insulation as specified by the color code. All otherconductors shall be provided with 3/4" wide marking bands of the appropriate color code, on blackinsulation. Marking bands shall be provided at all pull boxes, junction boxes, wiring troughs andterminations.
208/120 VOLT 480/277 VOLT 120/240 VOLTPHASE A - BLACK PHASE A - BROWN PHASE A - BLACKPHASE B - RED PHASE B - ORANGE PHASE B - ORANGEPHASE C - BLUE PHASE C - YELLOW PHASE C - BLUENEUTRAL - WHITE NEUTRAL - GRAY NEUTRAL - WHITEGROUND - GREEN GROUND - GREEN GROUND - GREEN
P. Control conductors: shall be color coded by use of color coded "tracers." No color circuit shallcontain two identical conductors.
3.11 INSTALLATION OF CONTROL DEVICES:
A. Furnishing equipment: Unless otherwise noted, motor starters for all pumping equipment shall beprovided by the manufacturer of the pump control panel. All control wiring for pump controlequipment shall be provided by the Electrical Contractor per the Pump Control Manufacturer’sShop/Coordination Drawings.
3.12 INSTALLATION OF PIPE SLEEVES:
A. Install pipe sleeves at all locations where pipes pass through wet well walls or ceilings.
B. Where subject to moisture or weather, seal sleeves with watertight sealant.
C. Install conduit sleeves under paved areas.
3.13 FEEDER AND BRANCH CIRCUITS:
A. Connection of equipment: connection of all items using electrical power shall be included underthis section of the specifications, including necessary wire, conduit, circuit protection, disconnectsand all accessories. Securing of rough-in drawings and connection information for equipmentinvolved shall also be included. All branch and feeder circuits shall be connected exactly as shownon the drawings, unless specific permission is requested to alter the arrangements shown.
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3.14 GROUNDING:
A. General: This contractor shall provide a complete electrical service grounding system that ensures all metallic components in the building including foundation and structural steel, electrical conduitand raceways, metallic pipe and metal equipment are maintained at ground potential levels not toexceed 5 Ohms to ground. All grounding and bonding methods shall be in accordance with theNational Electric Code and these specifications.
B. Electrical Systems Grounding: The electrical system shall be completely and effectively groundedas required by the NEC and local codes as specified herein or detailed on the Drawings.1. Metallic raceways are not to be utilized as the circuit ground conductors. Contractor is to
provide copper wire ground conductors in all metallic raceways. All other connections ofmetallic raceways to the grounding system is for bonding purposes only.
2. All metallic raceways shall be mechanically and electrically secure at all joints and all boxes,cabinets, fittings and equipment. Metallic raceways shall be bonded to the grounding systemand shall be electrically continuous throughout the entire system.
3. Equipment connected to the conduit system by a section of flexible conduit shall have a fullsize, but not larger than No. 3/0, Grounding shunt installed.
4. The equipment shall be connected to the conduit system by means of a short section (18"minimum) of flexible conduit unless otherwise indicated.
5. Grounding conductor shall be provided in all PVC raceways which contain power conductors.6. Equipment grounding wire shall be bonded to each panel board and to each metallic
enclosure of frame.7. Refer to Section 3790 for Ground Testing Requirements.
3.15 EQUIPMENT IDENTIFICATION:
A. Placards: Provide on all disconnect switches, panelboards, motor starters, each component ofswitchboards and other items of electrical supply equipment, including spares, engraved placardsper Section 3700-3 of this specification.
B. Circuit labels: Identify all connected circuits with a typed panel schedule attached to the inside dooron all electrical panels. Circuit numbers shall be provided on the cover panel of the board, adjacentto the corresponding breaker. If no such numbers have been embossed into the steel cover, thiscontractor shall provide engraved or printed labels to accomplish same. Spare circuits shall benoted as such.
C. Directory: for panelboards, mount a typewritten directory showing the actual circuit numbers, typeof load and room name. Room names used shall be the actual names used, not necessarily thoseshown on the drawings. Submit a typical directory for approval.
3.16 PHASING:
A. General: Phasing of the complete electrical installation shall be connected and maintaineduniformly throughout the power distribution system. Where the project is an addition ormodification to an existing facility, the electrical distribution system phasing shall be made the sameas the existing installation. All switch-gear, safety switches, motor starters, plug-in type bus duct,lighting and power panels and power receptacles shall have the same phase arrangementsthroughout the facility.1. Color Coding Conductors: Wire and cable for feeders and branch circuits shall be identified
with a visual color code as specified in Section 3700-3 of this specification. 2. Grounding Conductors: Provide insulated green copper ground wires for all system ground
conductors. 3. Motor Controls: Power from the motor starter to the motor or similar equipment shall be color
coded black. Control wiring shall be color coded red for the hot (ungrounded) conductorsand white for the grounded conductor. Direct current control conductors shall be color codedblue.
3700-3-16
3.17 INSTALLATION OF CIRCUIT PROTECTIVE DEVICES:
A. Unless otherwise indicated protective devices shall be mounted with top of cabinet or enclosure6'-6" above finished floor, properly aligned and adequately supported independently of theconnecting raceways. All steel shapes, etc, necessary for the support of the equipment shall befurnished and installed by the contractor where the building structure is not suitable for mountingthe equipment directly thereon.
3.18 ENERGIZING PANELBOARDS: Refer to Testing - Section 3790.
3.19 LIGHTING INSTALLATION:
A. Pole Mounted Fixtures:1. Coordinate with other electrical work as necessary to properly interface installation of
roadway and parking area lighting with other work. 2. Use belt slings or rope (not chain or cable) to raise and set finished poles and standards to
protect finishes. 3. Set poles and standards plumb. Support adequately during backfilling, or anchoring to
foundations. 4. Provide sufficient space encompassing hand access and cable entrance holes for installation
of underground cabling where indicated5. Install under ground conduit coordinated to run up through the center of pole / pole base,
exterior conduit connections are not acceptable.6. Provide a 10' copper-clad dedicated secondary ground electrode at each pole location. Bond
all metal components of lighting fixture to secondary ground electrode and building groundvia # 10 AWG (Min.) green wire ground in conduit.
7. All conduit entering light fixtures from under ground shall be sealed using ductseal orequivalent.
B. Lighting Quality Control: 1. Upon completion of installation of lighting fixtures, and after energizing branch supply
circuitry, apply electrical energy to lighting fixtures to demonstrate capability and compliancewith requirements. Where possible, correct malfunctioning units at site, then retest todemonstrate compliance; otherwise, remove and replace with new units, and proceed withretesting.
2. Replace defective and burned-out lamps at the time of Substantial Completion.
END OF SECTION
3700-3-17
SECTION 3760-3 LIGHTNING PROTECTION SYSTEMS
1. PART ONE - GENERAL:
1.1 SECTION INCLUDES
A. Air TerminalsB. Ground RodsC. Down ConductorsD. Ground RingsE. Pipe Bonding of all Metal Piping Systems
1.2 SCOPE:
A. The work to be provided under these specifications shall include furnishing and installing acomplete lightning protection system. The work shall consist of the following:1. Installation of a complete system of air terminals, down conductors and ground rods
in accordance with the guidelines of NFPA 780 or UL Master Label.2. Provide a lightning protection system using Class II Materials per NFPA-780.3. Bonding and Grounding of all Metal Piping Systems.4. Inspection and Testing5. All associated material, hardware, and wiring necessary for a completely installed and
operating system.
1.3 RELATED DOCUMENTS:
A. Division 1. - General requirements.
1.4 REFERENCES:
A. ANSI/NFPA 70, 2008 Edition - National Electric Code.B. ANSI/NFPA 780, 2004 Edition - Lightning Protection Code.C. ANSI/IEEE Std 142-2007 - IEEE Recommended Practice for Grounding of Industrial and
Commercial Power Systems.
1.5 SUBMITTALS:
A. Refer to the Submittals Section in General Requirements and Section 3700-3 for completedescription of submittal data requirements.
B. Submit Manufacturer’s Product Data for the following items:1. Air Terminals and Mounting Bases2. Ground Rods3. Main Down Conductors and Bonding Conductors4. Cable Clamps5. Straps and Fasteners6. Through Roof Assemblies7. Structural Metal Connectors8. Exothermic Welding Materials and Methods
C. Prepare a complete set of working drawings showing plan view locations of all Air Terminals,Bonding Conductors, Main Conductors (Both Down Conductors and Cross-Run Conductors),and Ground Rods; and details of installation for each type. Submit these drawings to theEngineer for review and receive comments, prior to ordering materials.
1.6 WARRANTY:
3760-3-1
A. All labor and material supplied by the Lightning Protection Contractor shall be warranted fora period of one year after acceptance.
2. PART TWO - PRODUCTS:
2.1 ACCEPTABLE MANUFACTURERS:
A. Lightning protection equipment provided under this Section shall be from only one of thefollowing manufacturers:1. Advanced Lightning Technology, Inc. (ALT)2. Alltec Corp3. Erico Inc, Solon, OHwww.erico.com4. Kuefler Lightning Protection, Inc (KLP)5. Independent Protection Company (IPC), Goshen, IN www.ipclp.com6. Robbins Lightning Protection Company, Maryville, MOwww.robbins-lightning.com7. Thompson Lightning Protection, St Paul, MNwww.tlpinc.com
2.2 LIGHTNING PROTECTION SYSTEM:
A. Materials shall be in compliance with the following standards1. UL96A. 2. NEC. 3. NFPA No. 780.
B. General Requirements:1. All materials used for the system installation shall comply in size, composition and
weight to all requirements of NFPA and UL for the class of system in which they areinstalled. All materials shall be labeled or listed by UL for use in master labeledsystems
2. Materials:a. Aluminum - Above grade where mounted on finished metal building surfaces,
galvanized steel surfaces, concrete surfaces and pole mounted lighting fixturesand antennas.
b. Copper - Above grade where mounted on structural steel surfaces (red iron),metal piping systems and finished metal equipment (generators, pumpsequipment structures).
3. Compatibility: All portions of the system shall be galvanically compatible to the buildingmaterial to which they are to be attached. Connections between copper and aluminumportions of the system shall be made with appropriate bimetallic coupling devices. Inall areas, the conductor shall be supported to maintain clearance from all galvanicallyincompatible materials or shall be of the same material.
4. All system components shall be, to the maximum extent possible, the product of asingle manufacturer. All components shall be Class I as required by NFPA 780.All airterminal bases shall be securely mounted to the building structure by bases securedby hard setting epoxy adhesive.
C. Air Terminals:1. Air terminals shall be aluminum or copper as required to match the material / building
system to which they are attached. Air terminals shall protrude a minimum of 10 inchesabove the object to be protected. Center roof terminals shall be 24" high. Air terminalpoints shall be blunt with the radius of curvature equal to the rod diameter.
2. Each air terminal shall be equipped with the correct type of base for the location.3. Air terminals and interconnecting cable shall be provided for all roof mounted
equipment subject to a direct strike as required by NFPA 780.
D. Conductors:
3760-3-2
1. Main roof conductors shall be aluminum and shall provide a two-way patch from eachair terminal horizontally or downward to connections with down conductors. Conductorsshall be free of excessive splices and bends. No bend of a conductor shall form anincluded angle of less than 90 degrees nor have a radius of bend of less than 8 inches.Conductors shall be secured to the structure at intervals not exceeding 3 feet withapproved fasteners.
2. Down conductors shall be aluminum where attached to the building structure and shallbe concealed in the exterior wall construction. Where run in or on reinforced concretecolumns, bond down conductor to the re-bar at top and bottom of column. Downconductors shall be spaced at intervals averaging not more than 100 feet around theperimeter of the structure.
3. Thru-roof penetrations of down conductors are not allowed.4. Down conductors shall be copper where installed below the roof on structure and
routed to the ground grid.5. Main Down Conductors:
a. Aluminum - Class 1 Main Conductor, Ropelay Woven Cable, 28 Strand, 14Gauge Wire, 98,640 Circular Mils, 1/2" Dia, per NFPA 780.
b. Copper - Class 1 Main Conductor, Ropelay Woven Cable, 28 Strand, 16 GaugeWire, 72,258 Circular Mils, 3/8" Dia, per NFPA 780.
6. Bonding Conductors: a. Aluminum - Class 1 Bonding Conductor, Bare Solid Soft Drawn, 4 Gauge Wire,
41,700 Circular Mils, 1/5" Dia, per NFPA 780.b. Copper - Class 1 Bonding Conductor, Bare Solid Soft Drawn, 6 Gauge Wire,
26,250 Circular Mils, 1/6" Dia, per NFPA 780.
E. Fittings:1. Conductor fasteners shall be manufactured of a material which is compatible with the
type of conductor being supported. Fasteners shall be of sufficient strength to properlysupport each conductor or terminal base, etc.
F. Connection Materials:1. Cable-to-cable, cable-to-rod and cable-to-steel connection shall be exothermic-type
welding process or compression-type connectors. 2. Cable-to-Equipment Ground Lugs:
a. Copper alloy terminal with twin clamping element. b. Bolt to equipment housing and hatch doors with silicon bronze bolts and
lockwashers.c. Down Conductor Guards: Guards shall be of self-extinguishing high-impact
polyvinyl chloride or polyethylene.
2.3 GROUND GRID SYSTEM:
A. Wire and Cable:1. Bare Copper Ground Cable:
a. Type BC-2 (Medium Hardness) - 2/0 AWG, 19 Strand, 0.0837 Dia Wire, 133,108Circular Mils, 0.419 Dia, unless otherwise noted on plan.
B. Ground Rods: 1. Solid Copper or Stainless Steel sectional-type rods.2. One end pointed to facilitate driving.3. 5/8-inch diameter and furnished in 10-foot sections with diameter and total length
stamped near top of rod.
C. Ground Test Well:1. Junction box with cover.2. Molded body with high density polymer concrete ring.3. Manufactured by Synertech catalog #S1212B18FA for box and catalog
3760-3-3
#S1212HFAOA01 for cover or approved equal.
D. Connection Materials:1. Cable-to-cable, cable-to-rod, cable-to-steel/iron pipe and cable-to-steel connections
of exothermic-type welding process.
E. Mastic:1. Sonneborn-Sonoshield Mastics. 2. W.R. Meadows-Sealmastic.
2.4 EXOTHERMIC WELDING:
A. Provide appropriately sized molds for exothermic welding of copper cable-to-cable,cable-to-rod, cable-to-steel/iron pipe and cable-to-structural steel sections. All molds to besized for the materials being welded to and all molds to be from the same manufacturer.Contractor may use exothermic welding to attach bonding conductors to vertical or horizontalstructural steel, horizontal steel or cast iron pipe, cable to lugs, cable to cable, and cable toground rods.
3. PART THREE - EXECUTION:
3.1 GENERAL:
A. Install in conformance with the following standards:1. NFPA No. 780.2. UL 96A. 3. NFPA 70 (NEC).
B. Underwriters Laboratories Inc. (UL) Master Label:1. There are five applicable Listing Marks which are used for the Master Label:
a. Air Terminal: Attached to the air terminal near the base.b. Conductor: Attached at 10-foot (3-m) intervals.c. Listed Fittings: UL symbol die-stamped, cast, rolled, or molded into the product
or a permanently secured label.d. Ground Electrode: Rod and pipe electrodes are covered under the Standard for
Grounding and Bonding Equipment, UL 467.In addition to bearing the ListingMark, they shall also comply with the size requirements of Standard UL 96A,Section 8.
e. Master Label: For attachment to the protected structure as evidence that listedlightning protection materials are installed in accordance with Standard UL96A.The location shall be adjacent to the installer's nameplate.
2. Listing Mark Items "a" through "e" are applied to listed components at the factory bythe listed component manufacturer. Listing Marks Item "e" is issued to the structureowner through the listed installer for the protected structures.
3. The Master Label shall only be issued for a lightning protection system that complieswith Standard UL 96A and the applicable specifications.
4. The Master Label may be issued for a system on a structure that is connected to anunprotected structure if the only connection is a walkway which is located in a zone ofprotection and is at least 6 feet (1.8 m) long.
C. Do not install copper lightning protection materials on aluminum roofing, siding material, orother aluminum surfaces. On aluminum surfaces, use aluminum lightning protectionmaterials.
3760-3-4
3.2 LIGHTNING PROTECTION SYSTEM:
A. Install lightning protection systems as indicated, in accordance with equipmentmanufacturer's written instructions, and in compliance with applicable installation standards.Suitably protect cable and air terminals from damage during construction.
B. Air Terminals: 1. Structures not exceeding 75 feet in height: Use Class I materials.2. Air terminals shall be installed within 2 feet of all ends, edges, and corners of the
building.
C. Conductors:1. General:
a. Install conductor with tin-plating in areas subject to corrosion.b. Protect down conductors from physical damage and displacement by installing
guards.2. Structures not exceeding 75 feet in height: Use Class I materials.3. Install conductor with direct paths from air terminals to ground connections avoiding
sharp bends. Where required for protection, run conductors in nonmetallic PVCraceway Schedule 80 with a minimum elbow radius of 8 inches.
D. Bonding: Install in accordance with UL96A.
E. Structure Reinforcing Steel: Reinforcing steel shall be electrically continuous and bonded tothe lightning protection system at both the top and the bottom of the structure.
F. Provide bimetallic connectors when joining copper to aluminum conductors.
3.3 LIGHTNING PROTECTION GROUND GRID SYSTEM:
A. Wire and Cable:1. General:
a. Install using as few joints as possible.b. Protect against unraveling, caging, and abrasion by several wrappings of plastic
tape on all ends. c. Install so as not to be entirely encircled or closely encircled by magnetic material. d. Suitably protect against damage during construction. Replace or repair cable at
if cable is damaged by anyone before final acceptance.e. Protect cable at all points where cable leaves concrete by wrapping rubber tape
on 2 inches either side of the plane formed by the finished concrete surface.2. Buried Installations:
a. Install at locations and depths as specified or indicated. Otherwise install at least18 inches below finished grade or deeper if necessary in order to be in contactwith earth. Install outside of foundation or wall at a distance of not less than 2feet.
b. Maintain clearance of at least three feet from all underground metal piping orstructures where possible, otherwise tape all ground conductors within thisclearance.
c. Backfill with excavated earth free from rocks or stones. Thoroughly compactbackfill
B. Ground Rods:1. Install rods where indicated by driving and not by drilling or jetting.2. Drive rods into unexcavated portion of the earth where possible.3. Where rods must be installed in excavation areas, drive rods into earth after
compaction of backfill is completed.4. Drive to a depth such that top of rods will be approximately 18 inches below final
3760-3-5
grade, or subgrade, and connect to the buried grid ground conductors.
C. Ground Test Well:1. Install at locations indicated on drawings.
D. Connections:1. Conform to manufacturer's instructions2. Chemically degrease and dry completely before welding or applying compression-type
connectors.3. Apply coating to all exothermic-welded connections to be buried, at 15 mils dry film
thickness, after checking of connections by Engineer.4. Make up bolted connections clean and tight.5. Low-resistance connections with resistance drop not exceeding 1 ohm.6. Do not cover up connections before they are checked by Engineer.
3.4 CORROSION PROTECTION:
A. Use no combination of materials that may form an electrolytic couple of such nature thatcorrosion is accelerated in the presence of moisture, unless moisture is permanentlyexcluded from the junction of such metals. Where unusual conditions exist that would causedeterioration or corrosion of conductors, use conductors with suitable protective coatings.
3.5 INSPECTION AND MAINTENANCE:
A. Inspection of Lightning Protection Systems1. Frequency of Inspections. All new lightning protection systems must be inspected
following completion of their installation. The system should be inspected wheneverany alterations or repairs are made to a protected structure; also, following any knownlightning discharge to the system. The system should be inspected semi-annually.
2. Visual Inspection. Visual inspections are made to ascertain the following:a. The system is in good repair.b. There are no loose connections which might result in high resistance joints.c. No part of the system has been weakened by corrosion or vibration.d. All down conductors and ground terminals are intact (non-severed).e. All conductors and system components are securely fastened to their mounting
surfaces and are protected against accidental mechanical displacement asrequired.
f. There have not been additions or alterations to the protected structure whichwould require additional protection.
g. There has been no visual indication of damage to surge suppression (overvoltage) devices.
h. The system complies in all respects with the current edition of the LightningProtection Code.
3. Provide UL inspection and delivery of UL Master Label to Owner.
B. Maintenance of Lightning Protection Systems1. Maintenance Procedures: Lightning protection system maintenance procedures should
be established and become a part of the overall maintenance program for the structurewhich it protects.
2. A maintenance program should contain a list of more or less routine items that mayserve as a check list so that a definite maintenance procedure can be followedregularly. It is the repeatability of the procedures that enhance the effectiveness of agood maintenance program.
3. A good maintenance program should contain provisions for the following:a. Inspection of all conductors and system components.b. Tightening of all clamps and splicers.c. Measurement of lightning protection system resistance.
3760-3-6
d. Measurement of resistance of ground terminals.e. Inspection of and/or testing of surge protection devices to determine their
effectiveness compared with similar new devices.f. Refastening and tightening of components and conductors as required.g. Inspection and testing as required to determine if the effectiveness of the
lightning protection system has been altered due to additions to, or changes in,the structure.
4. Maintenance Records - Complete records shall be kept of all maintenance proceduresand routines and shall include corrective actions that have been or will be taken.Records provide a means of evaluating system components and their installation. Theyalso serve as a basis for reviewing maintenance procedures as well as updatingpreventative maintenance programs.
END OF SECTION
3760-3-7
SECTION 3790-3 ELECTRICAL TESTING
1. PART ONE - GENERAL:
1.1 SCOPE:
A. Tests specified in this section are to be performed in accordance with the requirements of START-UP Section in the General Conditions and the applicable requirements of other Electrical Sections.
B. The work to be performed under this section includes all labor, materials, equipment and servicesnecessary to bring the complete electrical system to a state of substantial completion, as shownon the drawings and as specified.
1.2 REFERENCES:
A. ANSI/NFPA 70 - 2008 - National Electric Code.B. ANSI/NFPA 780 - 2011 - Standard for the Installation of Lightning Protection Systems.C. ANSI/IEEE Std 142 - 2007 - IEEE Recommended Practice for Grounding of Industrial and
Commercial Power Systems.D. International Electrical Testing Association (NETA) - ATS, Acceptance Testing Specifications for
Electrical Power Distribution Equipment and Systems.
1.3 SUBMITTALS:
A. Administrative Submittals - Submit 30 days prior to performing inspections or tests: 1. Schedule for performing inspection and tests. 2. List of references to be used for each test. 3. Sample copy of equipment and materials inspection form(s). 4. Sample copy of individual device test form. 5. Sample copy of individual system test form.
B. Test / Inspection Reports - Submit within 30 days after completion of test:1. Test or inspection reports and certificates for each electrical item tested. 2. The following test shall be performed on instrumentation and control system cables. All tests
shall be end-to-end test of installed cables with the ends supported in free air, not adjacentto any ground object. All test data shall be recorded on forms acceptable to the Engineer. Complete records of all tests shall be made and delivered to the Engineer. a. Continuity tests shall be performed by measuring wire/shield loop resistance of signal
cable as the wires, taken one at a time, are shorted to the channel shield. No loopresistance measurement shall carry by more than +2 ohms from the calculatedaverage loop resistance value.
b. Insulation resistance tests shall be performed by using a 500 volt megohmeter tomeasure the insulation resistance between each channel wire, between each channelwire and channel shield, between individual channel shields in a multi-channel cable,between each individual channel and the overall cable shield in multi-channel cable,between each wire and ground, and between each shield and ground. Values ofresistance less than 10 megohms shall be unacceptable.
C. Contract Closeout Submittals: 1. Operation and Maintenance Data: After test or inspection reports and certificates have been
reviewed by Engineer and returned, insert a copy of each in operation and maintenancemanual.
3790-3-1
1.4 QUALITY ASSURANCE
A. Testing Firm Qualifications: 1. Corporately and financially independent organization functioning as an unbiased testing
authority. 2. Professionally independent of manufacturers, suppliers, and installers, of electrical
equipment and systems being tested. 3. Employer of engineers and technicians regularly engaged in testing and inspecting of
electrical equipment, installations, and systems. 4. Technicians certified by NICET or NETA. 5. Assistants and apprentices assigned to project at ratio not to exceed two certified to one
non-certified assistant or apprentice. 6. In compliance with OSHA Title 29, Part 1907 criteria for accreditation of testing laboratories
or a full Member Company of International Electrical Testing Association.
B. Test equipment shall have an operating accuracy equal to, or greater than, requirementsestablished by NETA ATS.
C. Test instrument calibration shall be in accordance with NETA ATS.
1.5 SEQUENCING AND SCHEDULING
A. Perform inspection and electrical tests after equipment has been installed.
B. Perform tests with apparatus de-energized whenever feasible.
C. Inspection and electrical tests on energized equipment are to be: 1. Scheduled with Engineer prior to de-energization. 2. Minimized to avoid extended period of interruption to the operating plant equipment.
D. Notify Engineer at least 24 hours prior to performing tests on energized electrical equipment.
2. PART TWO - PRODUCTS:
2.1 GENERAL:
A. The Electrical Contractor shall furnish all equipment necessary to perform any test ordemonstration specified or required. Equipment and personnel required to perform tests anddemonstrations shall be included in the Electrical Contractors basic proposal.
B. Furnish completed checklist and or reports of commissioning procedures and inspections asdirected by the Engineer or required in this section.
3. PART THREE - EXECUTION:
3.1 GENERAL:
A. Tests and inspection shall establish that:1. Electrical equipment is operational within industry and manufacturer’s tolerances. 2. Installation operates properly. 3. Equipment is suitable for energization. 4. Installation conforms to requirements of Contract Documents and NFPA 70, and ANSI C2.
B. Perform inspection and testing in accordance with NETA ATS, industry standards, andmanufacturer's recommendations, including the following:
3790-3-2
1. Set, test, and calibrate protective relays, circuit breakers, fuses, and other applicable devicesin accordance with values established by the short circuit and coordination study or asdirected by the Engineer.
2. Adjust mechanisms and moving parts for free mechanical movement. 3. Adjust adjustable relays and sensors to correspond to operating conditions, or as
recommended by manufacturer. 4. Verify nameplate data for conformance to Contract Documents. 5. Realign equipment not properly aligned and shim into level condition. 6. Properly anchor electrical equipment found to be inadequately anchored. 7. Tighten accessible bolted connections, including wiring connections, with calibrated torque
wrench to manufacturer's recommendations, or as otherwise specified. 8. Clean contaminated surfaces with cleaning solvents as recommended by manufacturer. 9. Provide proper lubrication of applicable moving parts. 10. Inform Engineer of working clearances not in accordance with NFPA 70. 11. Investigate and repair or replace:
a. Electrical items that fail tests. b. Active components not operating in accordance with manufacturer's instructions. c. Damaged electrical equipment.
12. Electrical Enclosures: a. Remove foreign material and moisture from enclosure interior. b. Vacuum and wipe clean enclosure interior. c. Remove corrosion found on metal surfaces. d. Repair or replace, as determined by Engineer, door and panel sections having dented
surfaces.e. Repair or replace, as determined by Engineer, poor fitting doors and panel sections. f. Repair or replace improperly operating latching, locking, or interlocking devices. g. Replace missing or damaged hardware. h. Provide matching paint and touch up scratches and mars. i. If required due to extensive damage, as determined by Engineer, refinish the entire
assembly. 13. Replace fuses and circuit breakers that do not conform to size and type required by the
Contract Documents.
3.2 METERING
A. Visual and Mechanical Inspection: 1. Verify meter connections in accordance with appropriate diagrams. 2. Verify meter multipliers. 3. Verify that meter types and scales conform to Contract Documents. 4. Check calibration of meters at cardinal points. 5. Check calibration of electrical transducers.
3.3 PANELBOARDS & PUMP CONTROL PANELS:
A. Visual and Mechanical Inspection: 1. Insulator damage and contaminated surfaces. 2. Proper operation of indicating devices. 3. Check Door and Device Interlocking System By:
a. Closure attempt of device when door is in OFF or OPEN position. b. Opening attempt of door when device is in ON or CLOSED position.
4. Check Key Interlocking Systems For: a. Key captivity when device is in ON or CLOSED position. b. Key removal when device is in ON or CLOSED position. c. Closure attempt of device when key has been removed. d. Correct number of keys in relationship to number of lock cylinders. e. Existence of other keys capable of operating lock cylinders. Destroy duplicate sets of
keys.
3790-3-3
5. Check Nameplates for Proper Identification Of: a. Equipment title and tag number with latest one-line diagram. b. Pushbutton. c. Control switch. d. Pilot light. e. Control relay. f. Circuit breaker. g. Indicating meter.
6. Verify that fuse and circuit breaker ratings, sizes, and types conform to those specified, 7. Check bus and cable connections for high resistance by thermographic survey, low
resistance ohmmeter and calibrated torque wrench applied to bolted joints. a. Ohmic value to be zero. b. Bolt torque level in accordance with NETA ATS, Table 10. 1, unless otherwise specified
by manufacturer. c. Thermographic survey temperature gradient of 2 degrees C, or less.
8. Check Operation and Sequencing of Electrical and Mechanical Interlock Systems By: a. Closure attempt for locked open devices. b. Opening attempt for locked closed devices. c. Key exchange to operate devices in OFF-NORMAL positions.
9. Verify performance of each control device and feature. 10. Control Wiring:
a. Compare wiring to local and remote control and protective devices with elementarydiagrams.
b. Proper conductor lacing and bundling.c. Proper conductor identification. d. Proper conductor logs and connections.
11. Exercise active components. 12. Perform phasing check on double-ended equipment to ensure proper bus phasing from each
source.
B. Electrical Tests: 1. Insulation Resistance Tests:
a. Applied megohmeter dc voltage in accordance with NETA ATS, Table 7.1.1. b. Each phase of each bus section. c. Phase-to-phase and phase-to-ground for 1 minute. d. With switches and breakers open. e. With switches and breakers closed. f. Control wiring except that connected to solid state components. g. Insulation resistance values equal to, or greater than, Ohmic values established by
manufacturer. 2. Overpotential Tests:
a. Applied AC or DC voltage and test procedure in accordance with ANSI C37.20.3 andNEMA PB 2.
b. Each phase of each bus section. c. Phase-to-phase and phase-to-ground for 1 minute. d. Test results evaluated on a pass/fail basis.
3. Current Injection Tests: a. For entire current circuit in each section. b. Secondary injection for current flow of 1 ampere. c. Test current at each device.
4. Control Wiring: a. Apply secondary voltage to control power and potential circuits. b. Check voltage levels at each point on terminal boards and each device terminal.
5. Operational Test: a. Initiate control devices. b. Check proper operation of control system in each section.
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3.4 MOLDED AND INSULATED CASE CIRCUIT BREAKERS
A. General: Inspection and testing limited to circuit breakers rated 70 amperes and larger and tomotor circuit protector breakers rated 50 amperes and larger.
B. Visual and Mechanical Inspection: 1. Proper mounting. 2. Proper conductor size. 3. Feeder designation according to nameplate and one-line diagram. 4. Cracked casings. 5. Connection bolt torque level in accordance with NETA ATS, Table 10.1. 6. Operate breaker to verify smooth operation. 7. Compare frame size and trip setting with circuit breaker schedules or one-line diagram. 8. Verify that terminals are suitable for 75 degrees C rated insulated conductors.
C. Electrical Tests: 1. Insulation Resistance Tests:
a. Utilize 1,000-volt dc megohmeter for 480- and 600-volt circuit breakers and 500-volt dcmegohmeter for 240-volt circuit breakers.
b. Pole-to-pole and pole-to-ground with breaker contacts opened for 1 minute. c. Pole-to-pole and pole-to-ground with breaker contacts closed for 1 minute. d. Test values to comply with NETA ATS, Table 10.2.
2. Contact Resistance Tests: a. Contact resistance in microhms across each pole. b. Investigate deviation of 50 percent or more from adjacent poles and similar breakers.
3. Primary Current Injection Test to Verify: a. Long-time minimum pickup and delay. b. Short-time pickup and delay. c. Ground fault pickup and delay. d. Instantaneous pickup by run-up or pulse method. e. Trip characteristics of adjustable trip breakers shall be within manufacturer's published
time-current characteristic tolerance band, including adjustment factors. Trip timesshall be within limits established by NEMA AB 4, Table 5-3.
f. Instantaneous pickup value shall be within values established by NEMA AB 4, Table5-4.
3.5 DRY TYPE TRANSFORMERS
A. Visual and Mechanical Inspection: 1. Physical and insulator damage. 2. Proper winding connections. 3. Bolt torque level in accordance with NETA ATS, Table 10.1, unless otherwise specified by
manufacturer. 4. Defective wiring. 5. Proper operation of fans, indicators, and auxiliary devices. 6. Removal of shipping brackets, fixtures, or bracing. 7. Free and properly installed resilient mounts. 8. Cleanliness and improper blockage of ventilation passages. 9. Verify that tap-changer is set at correct ratio for rated output voltage under normal operating
conditions. 10. Verify proper secondary voltage phase-to-phase and phase-to-ground after energization and
prior to loading.
B. Electrical Tests: 1. Insulation Resistance Tests:
a. Applied megohmeter dc voltage in accordance with NETA ATS, Table 7.2.3 for each: 1) Winding-to-winding.
3790-3-5
2) Winding-to-ground, b. l0-minute test duration with resistances tabulated at 30 seconds, 1 minute, and 10
minutes. c. Results temperature corrected in accordance with NETA ATS, Table 7.2.4. d. Temperature corrected insulation resistance values equal to, or greater than, Ohmic
values established by manufacturer. e. Insulation resistance test results to compare within 1 percent of adjacent windings.
2. Perform tests and adjustments for fans, controls, and alarm functions as suggested bymanufacturer.
3.6 LOW VOLTAGE CABLES, 600 VOLTS MAXIMUM
A. Visual and Mechanical Inspection: 1. Inspect Each Individual Exposed Power Cable No. 6 and Larger For:
a. Physical damage. b. Proper connections in accordance with single-line diagram. c. Cable bends not in conformance with manufacturer's minimum allowable bending
radius where applicable. d. Color coding conformance with specifications. e. Proper circuit identification.
2. Mechanical Connections For: a. Proper lug type for conductor material. b. Proper lug installation. c. Bolt torque level in accordance with NETA ATS, Table 10. 1, unless otherwise specified
by manufacturer. 3. Shielded Instrumentation Cables For:
a. Proper shield grounding. b. Proper terminations. c. Proper circuit identification.
4. Control Cables For: a. Proper termination. b. Proper circuit identification.
5. Cables Terminated Through Window Type CT's: Verify that neutrals and grounds areterminated for correct operation of protective devices.
B. Electrical Tests for Conductors No. 6 and Larger: 1. Insulation Resistance Tests:
a. Test each conductor with respect to ground and to adjacent conductors per IEEE 118procedures for 1 minute.
b. Evaluate Ohmic values by comparison with conductors of same length and type. c. Investigate values less than 50 megohms. d. Utilize 1,000VDC megohmeter for 600V insulated conductors.
2. Continuity test by ohmmeter method to ensure proper cable connections.
3.7 INSTRUMENT/CONTROL TRANSFORMERS
A. Visual and Mechanical Inspection: 1. Visually Check Current, Potential, and Control Transformers For:
a. Cracked insulation. b. Broken leads or defective wiring. c. Proper connections. d. Adequate clearances between primary and secondary circuit wiring.
2. Verify Mechanically That: a. Grounding and shorting connections have good contact. b. Withdrawal mechanism and grounding operation, when applicable, operate properly.
3. Verify proper primary and secondary fuse sizes for potential transformers.
3790-3-6
B. Electrical Tests: 1. Current Transformer Tests:
a. Insulation resistance test of transformer and wiring-to-ground at 1,000 volts dc for 30seconds.
b. Polarity test. 2. Potential Transformer Tests:
a. Insulation resistance test at test voltages in accordance with NETA ATS, Table 7.1.1for 1 minute on: 1) Winding-to-winding. 2) Winding-to-ground.
b. Polarity test to verify polarity marks or H1-X1 relationship as applicable. 3. Insulation resistance measurement on instrument transformer shall not be less than that
shown in NETA ATS, Table 7.1.1.
3.8 GROUNDING SYSTEMS:
A. Visual and Mechanical Inspection: 1. Equipment and circuit grounds in motor control centers, panelboards, switchboards, and
switchgear assemblies for proper connection and tightness. 2. Ground bus connections in motor control centers, panelboards, switchboards, and switchgear
assemblies for proper termination and tightness, 3. Effective transformer core and equipment grounding. 4. Accessible connections to grounding electrodes for proper fit and tightness. 5. Accessible exothermic-weld grounding connections to verify that molds were fully filled and
proper bonding was obtained.
B. Electrical Testing:1. Fall-Of-Potential Test:
a. In accordance with IEEE 81, Section 8.2.1.5 for measurement of main groundsystem's resistance.
b. Main ground electrode system resistance to ground to be no greater than 5 ohms.2. Two-Point Direct Method Test:
a. In accordance with IEEE 81, Section 8.2. 1.1 for measurement of ground resistancebetween main ground system, equipment frames, and system neutral and derivedneutral points.
b. Equipment ground resistance shall not exceed main ground system resistance by 0.50ohm.
C. Reducing Resistance to Ground of an Electrode may be accomplished as follows:a. Install longer ground rods: Long ground rods made in sections coupled together are
very effective where there is considerable depth of dry sand and good moist soil ismany feet underground.
b. Install additional ground rods: Install two, three, or more rods in parallel spaced aminimum of six feet apart. Bond ground rods with a continuous code sized groundconductor.
c. Chemical treatment of the soil: This method of reducing ground resistance may beperformed only with the expressed written approval by the Engineer. The Contractorshall submit proposed methods and chemical for review if this technique is requested.
3.9 GROUND FAULT SYSTEMS
A. Inspection and Testing Limited To: Test all Ground Fault Isolated receptacles.
3.10 AC INDUCTION MOTORS
A. General: Inspection and testing limited to motors rated 5 horsepower and larger.
3790-3-7
B. Visual and Mechanical Inspection: 1. Proper electrical and grounding connections. 2. Shaft alignment. 3. Blockage of ventilating air passageways. 4. Operate Motor and Check For:
a. Excessive mechanical and electrical noise. b. Overheating. c. Correct rotation. d. Check vibration detectors, resistance temperature detectors, or motor inherent
protectors for functionality and proper operation. e. Excessive vibration.
5. Check operation of space heaters.
C. Electrical Tests: 1. Insulation Resistance Tests:
a. In accordance with IEEE 43 at test voltages established by NETA ATS, Table 10.2 for: 1) Motors above 200 horsepower for l0-minute duration with resistances tabulated
at 30 seconds, 1 minute, and 10 minutes. 2) Motors 200 horsepower and less for 1-minute duration with resistances tabulated
at 30 and 60 seconds. b. Insulation resistance values equal to, or greater than, Ohmic values established by
manufacturers. 2. Calculate polarization index ratios for motors above 200 horsepower. Investigate index ratios
less than 1.5 for Class A insulation and 2.0 for Class B insulation. 3. Insulation resistance test on insulated bearings in accordance with manufacturer's
instructions. 4. Measure running current and voltage, and evaluate relative to load conditions and nameplate
full-load amperes. 5. Overpotential Tests:
a. Applied dc voltage in accordance with IEEE 95. b. Limited to 4,000-volt motors rated 1,000 horsepower and greater. c. Test results evaluated on pass/fail basis.
3.11 LOW VOLTAGE MOTOR CONTROL
A. Visual and Mechanical Inspection: 1. Proper barrier and shutter installation and operation. 2. Proper operation of indicating and monitoring devices. 3. Proper overload protection for each motor. 4. Improper blockage of air cooling passages. 5. Proper operation of draw out elements. 6. Integrity and contamination of bus insulation system. 7. Check Door and Device Interlocking System By:
a. Closure attempt of device when door is in OFF or OPEN position. b. Opening attempt of door when device is in ON or CLOSED position.
8. Check Key Interlocking Systems For: a. Key captivity when device is in ON or CLOSED position. b. Key removal when device is in OFF or OPEN position. c. Closure attempt of device when key has been removed. d. Correct number of keys in relationship to number of lock cylinders. e. Existence of other keys capable of operating lock cylinders; destroy duplicate sets of
keys. 9. Check Nameplates for Proper Identification Of:
a. Equipment title and tag number with latest one-line diagram. b. Pushbuttons. c. Control switches. d. Pilot lights.
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e. Control relays. f. Circuit breakers. g. Indicating meters.
10. Verify that fuse and circuit breaker sizes and types conform to Contract Documents. 11. Verify that current and potential transformer ratios conform to Contract Documents. 12. Check Bus Connections for High Resistance by Low Resistance Ohmmeter and
Thermographic Survey: a. Ohmic value to be zero. b. Bolt torque level in accordance with NETA ATS, Table 10.1, unless otherwise specified
by manufacturer. c. Thermographic survey temperature gradient of 2 degrees C, or less.
13. Check Operation and Sequencing of Electrical and Mechanical Interlock Systems By: a. Closure attempt for locked open devices. b. Opening attempt for locked closed devices. c. Key exchange to operate devices in OFF-NORMAL positions.
14. Verify performance of each control device and feature furnished as part of the motor controlcenter.
15. Control Wiring: a. Compare wiring to local and remote control, and protective devices with elementary
diagrams. b. Check for proper conductor lacing and bundling. c. Check for proper conductor identification. d. Check for proper conductor lugs and connections.
16. Exercise active components. 17. Inspect Contactors For:
a. Correct mechanical operations. b. Correct contact gap, wipe, alignment, and pressure. c. Correct torque of all connections.
18. Compare overload heater rating with full-load current for proper size. 19. Compare motor protector and circuit breaker with motor characteristics and power factor
correction capacitors for proper size. 20. Perform phasing check on double-ended motor control centers to ensure proper bus phasing
from each source.
B. Electrical Tests: 1. Insulation Resistance Tests:
a. Applied megohmeter dc voltage in accordance with NETA ATS, Table 10.2. b. Bus section phase-to-phase and phase-to-ground for 1 minute on each phase. c. Contactor phase-to-ground and across open contacts for 1 minute on each phase. d. Starter section phase-to-phase and phase-to-ground on each phase with starter
contacts closed and protective devices open. e. Test values to comply with NETA ATS, Table 10.2.
2. Overpotential Tests: a. Maximum applied ac or dc voltage in accordance with NETA ATS, Table 7.1.2. b. Phase-to-phase and phase-to-ground for 1 minute for each phase of each bus section. c. Test results evaluated on pass/fail basis.
3. Current Injection through Overload Unit at 300 Percent of Motor Full-Load Current andMonitor Trip Time: a. Trip time in accordance with manufacturer's published data. b. Investigate values in excess of 120 seconds.
4. Control Wiring Tests: a. Apply secondary voltage to control power and potential circuits. b. Check voltage levels at each point on terminal boards and each device terminal. c. Insulation resistance test at 1,000 volts dc on control wiring except that connected to
solid state components. 1) Insulation resistance to be 1 megohms minimum.
5. Operational test by initiating control devices to affect proper operation.
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3.12 STANDBY GENERATOR SYSTEMS
A. Visual and Mechanical Inspection: 1. Proper grounding. 2. Blockage of ventilating passageways. 3. Proper operation of jack water heaters. 4. Integrity of engine cooling and fuel supply systems. 5. Excessive mechanical and electrical noise. 6. Overheating of engine or generator. 7. Proper installation of vibration isolators. 8. Proper cooling liquid type and level. 9. Operate Engine-Generator and Check For:
a. Excessive mechanical and electrical noise. b. Overheating. c. Correct rotation. d. Check resistance temperature detectors or generator inherent thermal protectors for
functionality and proper operation. e. Excessive vibration.
10. Verify that voltage regulator and governor operation will cause unit speed and output voltageto stabilize at proper values within reasonable length of time.
11. Proper operation of meters and instruments. 12. Compare generator nameplate rating and connection with one-line diagram. 13. Verify engine-generator operation with adjustable frequency drives energized and operating
under normal load conditions.
B. Electrical and Mechanical Tests: 1. Cold start test by interrupting normal power source with test load consisting of connected
building load to verify: a. Transfer switch operation. b. Automatic starting operation. c. Operating ability of engine-generator. d. Overcurrent devices capability to withstand inrush currents.
2. Phase rotation tests. 3. Test Engine Protective Shutdown Features For:
a. Low oil pressure. b. Overtemperature. c. Overspeed.
4. Vibration base-line test on generator sets rated above 250 kW; levels in accordance withmanufacturer's recommendations.
5. Load bank test with reactors and resistors adjusted to 80 percent power factor for each loadstep. Record voltage, frequency, load current, oil pressure, and engine coolant temperatureat 15-minute intervals: a. 25 percent applied load for 30 minutes. b. 50 percent applied load for 30 minutes. c. 75 percent applied load for 30 minutes. d. 100 percent applied load for 3 hours. e. Load test results to demonstrate ability of unit to deliver rated load for test period.
6. One-Step Rated kW Load Pickup Test: a. Perform test immediately after performing load bank test. b. Apply rated load, minus largest rated horsepower motor, to generator. c. Start largest rated horsepower motor and record voltage drop for 20 cycles minimum
with high-speed chart recorder or digital storage oscilloscope. d. Compare voltage drop with maximum allowable voltage dip for specified starting
situation.
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3.13 THERMOGRAPHIC SURVEY
A. Provide a thermographic survey of connections associated with incoming service conductors, buswork, and branch feeder conductors No. 2 and larger at each: 1. Medium voltage switchgear and transformer. 2. Low voltage switchgear and switchboard. 3. Low voltage motor control center. 4. Panelboard.
B. Provide a thermographic survey of feeder conductors No. 2 and larger terminating at: 1. Motors rated 30 horsepower and larger. 2. Medium and low voltage disconnect switches. 3. Transfer switches. 4. Engine-generators.
C. Remove necessary enclosure metal panels and covers prior to performing survey.
D. Perform with equipment energized during periods of maximum possible loading.
E. Do not perform survey on equipment operating at less than 20 percent of rated connectedoperating load.
F. Utilize Thermographic Equipment Capable of: 1. Detecting emitted radiation. 2. Converting detected radiation to visual signal. 3. Detecting 1 degree C temperature difference between subject area and reference point of
30 degrees C.
G. Temperature Gradients Of: 1. 3 degrees C to 7 degrees C indicates possible deficiency that warrants investigation. 2. 7 degrees C to 15 degrees C indicates deficiency that is to be corrected as time permits. 3. 16 degrees C and above indicates deficiency that is to be corrected immediately.
H. Provide Written Report Of: 1. Areas surveyed and the resultant temperature gradients. 2. Locations of areas having temperature gradients of 3 degrees C or greater. 3. Cause of heat rise and actions taken to correct the cause of heat rise. 4. Detected phase unbalance.
END OF SECTION
3790-3-11
SECTION 3800-3 ENGINE GENERATOR SYSTEM
1. PART ONE - GENERAL:
1.1 SECTION INCLUDES:
A. Engine - GeneratorB. MufflerC. Base Mounted Fuel TankD. Sound Attenuating EnclosureF. Access CatwalksE. Controls & Interface
1.2 SCOPE:
A. Provide complete factory assembled generator set with digital electronic controls, including:Residential Grade Muffler, Base Mounted Fuel Tank, Sound Attenuating Enclosure, AccessCatwalks, Factory Test, Startup by a supplier authorized by the manufacturer, and on-sitetesting of the system.
B. These Specifications are intended to provide a general description of the requirements, but donot identify all details which vary with the requirements of equipment offered.
1.3 CODES AND STANDARDS:
A. The generator set and its installation and on-site testing shall conform to the requirements ofthe following codes and standards:1. FCC Part 15, Subpart B.2. NEMA ICS10 - AC Generator sets. 3. NFPA70 - National Electrical Code, 2008 Edition.4. NFPA110 - Emergency and Standby Power Systems. The generator set shall meet all
requirements for Standby Power System.5. UL508 - The entire control system of the generator set shall be UL508 listed and labeled.6. UL2200 - The genset shall be listed to UL2200 or submit to an independent third party
certification process to verify compliance as installed.7. UL142 - Steel Aboveground Tanks for Flammable and Combustible Liquids8. Florida Building Code - Building, 2010 Edition W\ 2012 Supplements.9. Florida Building Code - Test Protocols for High Velocity Hurricane Zones, 2010 Edition.10. Florida Building Code - Energy Conservation, 2010 Edition W\ 2012 Supplements.11. Florida Fire Prevention Code (FFPC), 2014 Edition.12. National Electric Code - NFPA 70, 2008 Edition.
B. The generator set manufacturer shall be certified to ISO 9001 International Quality Standardand shall have third party certification verifying quality assurance in design/development,production, installation, and service, in accordance with ISO 9001.
1.4 SUBMITTALS:
A. Submit Shop Drawings and Manufacturer’s Product Data. Data to be provided to the PrimeEngineer for review by the MEP Engineer within fifteen (15) working days after receipt ofpurchase order from the Owner. All generator submittal data shall be reviewed and acceptedprior to placement of the factory work order.
B. All Generator submittal data is to be provided at one time, in a complete package to the PrimeEngineer with sufficient time to provide 15 working days to review of this material.
C. Submittal data may be provided in hard copy paper form or in Digital form. If the contractorchooses to supply Digital Data, the Format and Organization requirements described below,apply with the following:1. Digital Submittals shall be assembled into a single generic PDF format file that is viewable
by multiple platforms. PDF File shall be a PDF/X, PDF/A or PDF/E (PDF 1.7) format freeof all Adobe XML Forms Architecture and Java Script. PDF 2.0 files are not acceptable.
3800-3-1
2. Digital Submittals shall meet all the same requirements for organization and presentationas hard copy bound submittals.
3. Provided Manufacturer’s Product Data and Shop Drawings for each specification sectionas a single complete, indexed section in the submittal. Partial submittals will not beaccepted but will count as a billable review.
4. Digital files may be transferred via e-mail or FTP Site and the contractor is required toprovide a CD or DVD disk as a hard copy back-up.
5. Digital submittals will be organized in the same manner as bound copy submittals,contractor is to review and incorporate all bound copy instructions in to the digitalsubmittal.
6. Scanned images may be incorporated into the submittal, however; they shall be clear,completely and legible. Pages shall be oriented within not more than 2 degrees ofmisalignment. Illegible submittals will be rejected and count as a billable review.
D. Where product data sheets include more than one item and were items not being submitted areshown, each item being submitted is to be clearly identified by an arrow, high lighter or box. Where data sheets include items not germane to the project that have not been marked, thesubmittal will be rejected and count as a billable review.
E. Submit manufacturer's shop drawings for the following items:1. Engine Generator Set.2. Remote Annunciator(s)3. Sound Attenuating Enclosure.4. Base Mounted Fuel Storage Tank.5. Access Catwalks6. All Generator Connections (Power and Communications).
F. Submit manufacturer's product data for the following items.1. Circuit Breakers2. Switch Contacts3. Switch Enclosure4. Remote Annunciator(s)5. Exhaust/Muffler6. Engine7. Generator8. Controls9. Batteries & Battery Charger
G. Shop drawings to include; all installation drawings, schematics, and wiring diagrams whichshow details of installation and connections to the work of other sections, including foundationdrawing showing location and size of foundation bolts for the spring type vibration isolators andbrochures covering each item of equipment.
H. Engine Data to include but not limited to; Manufacturer, Model. Make and model anddescriptive literature of electric governor (where required), Fuel consumption rate curves atvarious loads, Engine continuous pump drive duty rating (without fan) Rated HP.
I. Generator Data to include but not limited to; Manufacturer, Model, Rated KVA, Rated kW,Voltage, Temperature rise above 40 degree C ambient, Stator by thermometer, Field byresistance, Class of insulation, Generator efficiency including excitation losses and at 80percent power factor (at full load, 3/4 load & ½ load).
J. Generator unit Control Data to include but not be limited to; electrical diagrams andinterconnection wiring diagrams for all equipment to be provided, legends for all devices ondiagrams and sequence of operation explanations for all portions of all schematic wiringdiagrams.
3800-3-2
K. Operating & Maintenance (O&M) Instructions:1. Three copies of the operating and maintenance manuals shall be furnished. The
manuals shall be prepared specifically for this installation and shall include all requiredcuts, drawings, equipment lists, descriptions, etc. that are required to instruct operatingand maintenance personnel unfamiliar with such equipment.
2. A factory representative who has complete knowledge of proper operation andmaintenance shall be provided for one (1) day after completion of all training to instructrepresentatives of the Owner on proper operation and maintenance.
1.5 QUALITY ASSURANCE:
A. Acceptable Generator Set Manufacturers: The Generator Set Manufacturer shall maintain andstaff engineering service and repair shops through the United States, including the State ofFlorida, trained to do start up service, emergency service calls, repair work, service contractsand training of customer personnel. Generator Sets by one of the following manufacturers' maybe incorporated in the work:1. Cummins-Onan Company2. Caterpillar, Inc.3. Detroit Diesel.
B. Automatic Transfer Switch: The automatic transfer switch specified in SECTION 3850-3 shallbe supplied by the generator set manufacturer in order to establish and maintain a singlesource of system responsibility and coordination.
C. Warranty:1. The generator set manufacturer shall warrant all equipment provided under this section,
whether or not is manufactured by the generator set manufacturer, so that there is onesource for warranty and product service.
2. Provide under base bid: The manufacturer's standard warranty for a period of two (2)years from date of initial start-up of the system and shall include repair parts, labor,reasonable travel expense necessary for repairs at the job site, and expendables(lubricating oil, filters, antifreeze, and other service items made unusable by the defect)used during the course of repair. Running hours shall be limited to 500 hours annually forthe system warranty by both the manufacturer and servicing distributor.
3. Provide a supplemental price for a 5-year parts and labor warranty, where the Owner isnot responsible for any warranty costs including travel, labor, parts, or other costs for five(5) years from the date of initial start-up of the system.
D. Delivery, Storage and Handling:1. Deliver units with factory installed shipping skids and lifting lugs; pack components in
factory-fabricated protective containers.2. Handle units carefully to avoid damage to components, enclosures and finish. Do not
install damaged components; replace and return damaged components to drivemanufacturer.
3. Store units in clean dry location and protect from the elements and construction traffic.
E. Spare Parts: Provide generator set with the following:1. Radiator and Alternator fan belts2. Fuel Filter3. Oil Filter4. Fuses and Relays5. Touch-up paint for the enclosures
F. Start-up: Coordinate all start-up and testing activities with the Engineer and Owner. Afterinstallation is complete and normal power is available, the manufacturer's local dealer shallperform the following:1. Perform a four (4) hour load bank test at a 1.0 PF at full nameplate rating. Loadbank,
cables and other equipment required for this test to be supplied by the genset supplier.2. Provide two (2) hours of on-site training to instruct the owner's personnel in the proper
operation and maintenance of the equipment. Review operation and maintenancemanuals, parts manuals, and emergency service procedures.
3800-3-3
2. PART TWO - PRODUCTS:
2.1 GENERATOR SET:
A. Ratings:1. The generator set shall operate at 1800 rpm and at a voltage of: 480Y/277, Three phase,
Four-wire, 60 hertz.2. The generator set shall be Standby Duty rated at 175 kW, 218.8 kVA at 0.8 PF, including
radiator fan and all parasitic loads. 3. Generator set shall be sized to operate at the specified load at a maximum ambient of
95F (35.0C) and altitude of 250.0 feet.4. Operating Loads - Generator shall be selected to operate as a minimum, the following
loads and with the listed steps:a. Step 1 - 10 KVA @ 0.8 PF, General Electrical Load.b. Step 2 - Start and run P1 - 30 Hp on Reduced Voltage Solid State Motor Starter
(RVSS).c. Step 3 - Start and run P2 - 75 Hp (on RVSS).d. Step 4 - Start and run P3 - 75 Hp (on RVSS).
B. Engine:1. Diesel fueled, four (4) cycle, water-cooled with nominal speed not exceeding 1800 RPM.
The engine will meet applicable EPA non-road mobile regulations and/or the EPA NSPSrule for stationary reciprocating compression ignition engines and all State Emissionregulations at the time of installation/commissioning. Utilization of the "TransitionProgram for Equipment Manufacturers" (also known as "Flex Credits") to achieve EPAcertification is not acceptable.
2. Engine Governing: The engine governor shall be a electronic Engine Control Module(ECM) with 24-volt DC Electric Actuator. The ECM shall be enclosed in anenvironmentally sealed, aluminum housing which isolates and protects electroniccomponents from moisture and dirt contamination. Speed droop shall be adjustable from0 (isochronous) to 10%, from no load to full rated load. Steady state frequency regulationshall be +/- 6 RPM. A provision for remote speed adjustment shall be included.
C. Generator:1. The synchronous three phase generator shall be a single bearing, self-ventilated,
drip-proof design in accordance with NEMA MG 1 and directly connected to the engineflywheel housing with a flex coupling. The generator shall meet performance class G2 ofISO 8528. The excitation system shall enable the alternator to sustain 300% of ratedcurrent based on the 125C (Class H) or 105C (Class F) rise rating for ten seconds duringa fault condition and shall improve the immunity of the voltage regulator to non-lineardistorting loads. The generator shall be a permanent magnetic type unit.
2. Digital Voltage Regulator: Provide microprocessor based voltage regulator with fullyprogrammable operating and protection characteristics. The regulator shall maintaingenerator output voltage within +/- 0.25% for any constant load between no load and fullload. The regulator shall be capable of sensing true RMS in three phases of alternatoroutput voltage, or operating in single phase sensing mode.
D. Circuit Breaker: Provide a generator mounted 100% rated circuit breaker, molded case, 400amp w/adjustable trip, 3 pole, NEMA 1/IP22. Breaker shall utilize a solid state trip unit. Thebreaker shall be UL/CSA Listed and connected to engine/generator safety shutdowns. Breaker shall be housed in an extension terminal box which is isolated from vibrations inducedby the generator set. Mechanical type lugs, sized for the circuit breaker feeders shown ondrawing, shall be supplied on the load side of breaker.
E. Cooling System: Engine-driven radiator with blower fan and all accessories. The coolingsystem shall be sized to operate at full load conditions and 110 Deg F ambient air entering theenclosure. The generator set supplier is responsible for providing a properly sized coolingsystem based on the enclosure static pressure restriction.
F. Fuel System: The fuel system shall be integral with the engine. In addition to the standard fuelfilters provided by the engine manufacturer, there shall also be a primary fuel filter/water
3800-3-4
separator installed in the fuel inlet line to the engine. All fuel piping shall be black iron or flexiblefuel hose rated 300 degrees F and 100 psi.
G. Silencer: A residential grade silencer, companion flanges, and flexible stainless steel exhaustfitting properly sized shall be furnished and installed in the assembly by the manufacturer. Thesilencer shall be mounted so that its weight is not supported by the engine nor will exhaustsystem growth due to thermal expansion be imposed on the engine. Exhaust pipe size shall besufficient to ensure that exhaust backpressure does not exceed the maximum limitationsspecified by the engine manufacturer.
H. Starting Motor: A DC electric starting system with positive engagement shall be furnished. Themotor voltage shall be as recommended by the engine manufacturer.
I. Jacket Water Heater: Jacket water heater shall be provided and shall be sized to insure thatgenset will start within the specified time period and ambient conditions. Heater to be 120/ 240Volt Single Phase, 2000 Watt @ 240 VAC rated and provided a dedicated power circuit fromthe Generator Bus, refer to Drawings.
J. Batteries: Batteries - A lead-acid storage battery set of the heavy-duty diesel starting type shallbe provided. Battery voltage shall be compatible with the starting system.
K. Battery Charger: Provide a current limiting battery charger to automatically recharge batteries. The charger shall be dual charge rate with automatic switching to the boost rate when required. The battery charger shall be mounted on the genset package or inside the genset enclosure. Charger to be 120 volt, 10 Amp rated and provided a dedicated power circuit from theGenerator Bus, refer to Drawings.
2.2 DOUBLE WALL SUB-BASE FUEL STORAGE TANK:
A. Provide a double wall sub-base tank constructed to meet all local codes and requirements. Tank shall have not greater than 510 gallon but not less than 500 gallon capacity and beprovided as an integral part of the enclosure. It shall contain a rupture basin with 110%capacity of the tank. The tank shall meet UL142 standards. A locking fill cap, a mechanicalreading fuel level gauge and the following fuel level & leak sensors:1. High fuel switch2. Low fuel switch3. Interstitial (rupture basin) leak switch 4. Mechanical fuel level gauge, visible from fuel fill and wired to genset control panel for
alarms.
B. Fuel - It is the intent of this specification to provide the Owner with a complete and fullyoperable standby generator system at the time of substantial completion. This Contractor willprovide the generator with sufficient fuel to perform all acceptance testing and start-upoperations prior to acceptance by the Owner. The Contractor will provide fresh fuel to top-offand completely fill the tank after all testing and demonstration and just prior to acceptance bythe Owner. Fuel is not to be more than 14 Days old at the time of acceptance.
2.3 OUTDOOR WEATHER PROTECTIVE SOUND ATTENUATING ENCLOSURE:
A. The generator set shall be provided with a sound-attenuated housing which allows thegenerator set to operate at full rated load in the ambient conditions previously specified. Theenclosure shall provide a 25 dBa reduction in sound level measured at 7 meters from thegenerator set in a free field environment. Housing configuration and materials used shall meet150 mph Florida Hurricane wind load w\ certifications. Acoustical materials used shall be oiland water resistant. Enclosure shall include the following:1. The enclosure shall include hinged doors for access to both sides of the engine and
alternator, and the control equipment. Key-locking and padlockable door latches shall beprovided for all doors. Door hinges shall be stainless steel.
2. The enclosure shall be provided with an exhaust silencer which is mounted inside of theenclosure, and allows the generator set package to meet specified sound levelrequirements. Silencer and exhaust shall include a raincap and rainshield.
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3. All sheet metal shall be primed for corrosion protection and finish painted with themanufacturers standard color. All surfaces of all metal parts shall be primed and painted.
4. Painting of hoses, clamps, wiring harnesses, and other non-metallic service parts is notacceptable. Fasteners used shall be corrosion resistant, and designed to minimizemarring of the painted surface when removed for normal installation or service work.
B. Certification: Submit certified calculations for all pole, enclosure and luminary combinations todemonstrate compliance with florida building code wind load criteria specified on the Drawings. Certified calculations to be provided bearing the signature and seal of a florida registeredstructural engineer and per ASCE 7 – 2010 Edition with the minimum required design wind loadcriteria shown on the Drawings. These calculations are to be accepted by the Engineer ascomplying with the specified requirements for the installation prior to placement of any orders.
2.4 ACCESS CATWALKS:
A. Provide a 42” wide Free Standing Stair Package using aluminum construction, with 42" tallhandrail (affixed on the side opposite of the fuel tank) in a u-shaped platform to extend length ofengine room on both sides and width of enclosure on the rear. Provide with two (2) sets ofstairs to access platform, as shown on the Drawings and per the following:1. Platform may be manufactured as a single U shaped assembly or as 3 separate units that
are field assembled with bolts to provide a single structure forming a U around thegenerator.
2. Platform elevation shall not be taller than the maximum height of the fuel tank.3. Platform to extend the full length of the generator enclosure with steps at the control end.4. Provide a 42" high handrail along the full length of the platform not mated along the
generator enclosure and on the stairs. The hand rail is measured from the top surface ofthe platform.
5. Shall be designed so as not to interfere with the access or full opening of any doors orpanels and the shall provide full and unobstructed access to the fuel tank refueling port.
6. Provision shall be made to bolt the catwalks to the concrete pad as well as anyattachment to the generator, that the manufacturer may recommend.
2.5 GENERATOR SET MOUNTED CONTROL:
A. Provide a fully solid-state, microprocessor based, generator set control. The control panel shallbe designed and built by the engine manufacturer. Communications to support Modbus RTU(RS-485 Half Duplex) data links. The control shall provide all operating, monitoring, and controlfunctions for the generator set.
B. Environmental: The generator set control shall be tested and certified to the followingenvironmental conditions:1. -40°C to +70°C Operating Range2. 100% condensing humidity, 30°C to 60°C3. IP22 protection for rear of controller; IP55 when installed in control panel4. 5% salt spray, 48 hours, +38°C, 36.8V system voltage5. Sinusoidal vibration 4.3G's RMS, 24-1000Hz6. Electromagnetic Capability (89/336/EEC, 91/368/EEC, 93/44/EEC, 93/68/EEC, BS EN
50081-2, 50082-2)7. Shock: withstand 15G
C. Functional Requirements: The following functionality shall be integral to the control panel: 1. The control shall include a 33 x 132 pixel, 24mm x 95mm, positive image, transflective
LCD display with text based alarm/event descriptions.2. Audible horn for alarm and shutdown with horn silence switch3. Standard ISO labeling4. Multiple language capability5. Remote start/stop control6. Local run/off/auto control integral to system microprocessor7. Cooldown timer8. Lamp test9. Emergency stop push button
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D. Digital Monitoring Capability: The controls shall provide the following digital readouts for theengine and generator. All readings shall be indicated in either metric or English units.1. Engine:
a. Engine oil pressureb. Engine coolant temperaturec. Engine RPMd. Battery volts
2. Generator:a. Generator AC volts (Line to Line, Line to Neutral and Average)b. Generator AC current (Per phase and Average)c. Generator AC Frequency
E. Alarms and Shutdowns: The control shall monitor and provide alarm indication and subsequentshutdown for the following minimum conditions. All alarms and shutdowns are accompanied byan engine hour stamp that is stored by the control panel for first and last occurrence. DuringConstruction, the Owner will designate those alarm conditions monitored by the digital enginecontroller that are to be output via SCADA communication using one of the six I/O outputs orvia Modbus.1. Engine Alarm/Shutdown:
a. Low oil pressure alarm/shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCADA Alarmb. High coolant temperature alarm/shutdown . . . . . . . . . . . . . . . . . . . . . SCADA Alarmc. Loss of coolant shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCADA Alarmd. Overspeed shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCADA Alarme. Overcrank shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCADA Alarmf. Emergency stop shutdowng. Low coolant temperature alarm
2. Generator Alarm/Shutdown: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCADA Alarm (any)a. Generator phase sequenceb. Generator over voltagec. Generator under voltaged. Generator over frequencye. Generator under frequency
F. Inputs and Outputs:1. Dedicated Digital Inputs: Two (2)2. Programmable Digital Inputs: Six (6)3. Programmable Input/Outputs: Six (6) - Form A (Normally Open) Dry Contacts.4. Programmable Input/Outputs: Two (2) - Form C (SPDT) Dry Contacts.5. Digital Outputs: Two (2)
G. Maintenance: All engine, voltage regulator, control panel and accessory units shall beaccessible through a single electronic service tool. The following maintenance functionalityshall be integral to the generator set control:
a. Engine running hours displayb. 40 events are stored in control panel memory
2.6 AUTOMATIC LOAD TRANSFER SWITCH: REFER TO SECTION 3850.
3. PART THREE - EXECUTION:
3.1 INSTALLATION:
A. Equipment shall be installed by the contractor in accordance with final submittals and contractdocuments. Installation shall comply with applicable state and local codes as required by theauthority having jurisdiction. Install equipment in accordance with manufacturer's instructionsand instructions included in the listing or labeling of UL listed products and the following:1. Installation of equipment shall include furnishing and installing all interconnecting wiring
between equipment provided for the on-site power system. The contractor shall alsoperform interconnecting wiring between equipment sections (when required), under the
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supervision of the equipment supplier.2. Equipment shall be installed on concrete housekeeping pads. Equipment shall be
permanently fastened to the pad in accordance with manufacturer's instructions andseismic requirements of the site.
3. All equipment shall be physically inspected for damage. Scratches and other installationdamage shall be repaired prior to final system testing. Equipment shall be thoroughlycleaned to remove all dirt and construction debris prior to final testing of the system.
4. The Contractor shall install suitable jacket water additives, including antifreeze, asfurnished by the engine manufacturer and approved by the Engineer, for prevention ofboth scale formation and corrosion in the water jackets and cooling system componentswhich are in contact with the engine jacket water. These additives shall be added to thecooling system prior to running the field acceptable test.
3.2 WIRING AND CONNECTIONS:
A. All conduit, wire, cables, interconnections, etc., entering or exiting the generator enclosure shallbe furnished and installed by the installing contractor. All wiring shall be in conduit sized inaccordance with the NEC. All power wiring shall be THWN copper and all control wiring shallbe stranded type THHN-THWN copper. All power and control wiring shall be installed for acomplete and operating system.
B. Installation and connection of the remote annunciator shall be performed by the electricalcontractor and inspected by the generator supplier.
C. The basis of design has been configured for separate power circuits feeding generator utilities. The Contractor may substitute this configuration with a Generator that has pre-terminatedpower utilities in a common power panel, provided all costs for powering and feeding the singlepoint connection on the generator are included in the base bid. Contractor is to clearly identifyproposed configuration in submittal data.
3.3 SEQUENCE OF OPERATION:
A. Generator set shall start on receipt of a start signal from ATS. The start signal shall be viahardwired connection to the generator set control and a redundant signal over the requirednetwork connection. The generator set shall complete a time delay start period as programmedinto the control.
B. The generator set control shall initiate the starting sequence for the generator set. The startingsequence shall include the following functions:1. The control system shall verify that the engine is rotating when the starter is signaled to
operate. If the engine does not rotate after two attempts, the control system shall shutdown and lock out the generator set, and indicate "fail to crank" shutdown.
2. The engine shall fire and accelerate as quickly as practical to start disconnect speed. Ifthe engine does not start, it shall complete a cycle cranking process as describedelsewhere in this specification. If the engine has not started by the completion of thecycle cranking sequence, it shall be shut down and locked out, and the control systemshall indicate "fail to start".
3. The engine shall accelerate to rated speed and the alternator to rated voltage. Excitationshall be disabled until the engine has exceeded programmed idle speed, and regulated toprevent over voltage conditions and oscillation as the engine accelerates and thealternator builds to rated voltage.
C. On reaching rated speed and voltage, the generator set shall operate as dictated by the controlsystem in isochronous, synchronize, load share, load demand, or load govern state.
D. When all start signals have been removed from the generator set, it shall complete a time delaystop sequence. The duration of the time delay stop period shall be adjustable by the operator.
E. On completion of the time delay stop period, the generator set control shall switch off theexcitation system and shall shut down.
F. Any start signal received after the time stop sequence has begun shall immediately terminatethe stopping sequence and return the generator set to isochronous operation.
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3.4 TESTING:
A. Factory Testing:1. The generator set supplier shall perform a complete operational test on the generator set
prior to shipping from the factory. A certified test report shall be provided. Equipmentsupplied shall be fully tested at the factory for function and performance.
2. Generator set factory tests on the equipment shall be performed at rated load and ratedpower factor. Generator sets that have not been factory tested at rated power factor willnot be acceptable. Tests shall include: run at full load, maximum power, voltageregulation, transient and steady-state governing, single step load pickup, and function ofsafety shutdowns.
B. Site Testing:1. The complete installation shall be tested for compliance with the specification following
completion of all site work. Testing shall be conducted by representatives of themanufacturer, with required fuel supplied by Contractor. The Engineer shall be notified inadvance and shall have the option to witness the tests.
2. Installation acceptance tests to be conducted on-site shall include a "cold start" test, aPerform a four (4) hour load bank test at a 1.0 PF at full nameplate rating, and a one steprated load pickup test in accordance with NFPA 110. Provide a resistive load bank andmake temporary connections for full load test, if necessary.
3. Perform a power failure test on the entire installed system. This test shall be conductedby opening the power supply from the utility service, and observing proper operation of thesystem for at least 2 hours. Coordinate timing and obtain approval for start of test withsite personnel.
3.5 TRAINING:
A. The equipment supplier shall provide two (2) hours of on-site training for the facility operatingpersonnel covering operation and maintenance of the equipment provided. The training classsize shall be limited to 5 persons. Training date shall be coordinated with the facility Owner.
3.6 SERVICE AND SUPPORT:
A. The manufacturer of the generator set shall maintain service parts inventory at a centrallocation which is accessible to the service location 24 hours per day, 365 days per year.
B. The generator set shall be serviced by a local service organization that is trained and factorycertified in generator set service. The supplier shall maintain an inventory of criticalreplacement parts at the local service organization, and in service vehicles. The serviceorganization shall be on call 24 hours per day, 365 days per year.
C. The manufacturer shall maintain model and serial number records of each generator setprovided for at least 20 years.
END OF SECTION
3800-3-9
SECTION 3850-3 AUTOMATIC TRANSFER SWITCHES
1. PART ONE - GENERAL
1.1 SCOPE:
A. Provide complete operational service entrance rated automatic transfer switch(s) with Amp, Volt,Phase, Hz Ratings and Number of Poles listed on the Electrical Drawings. Units shall be factoryassembled with electronic controls designed for fully automatic open transition(break-before-make) transfer operation and including; surge voltage isolation, voltage sensors onall phases of the normal source and one phase of the emergency source, positive mechanical andelectrical interlocking to prevent the utility and generator supplies from being interconnected.
1.2 RELATED DOCUMENTS:
A. Section 3800-3 - Engine Generator SystemsB. The other Contract Documents complement the requirements of this Section.
1.3 CODES AND STANDARDS:
A. The automatic transfer switch shall conform to the requirements of the following:1. UL 1008 - Automatic Transfer Switches for Use in Emergency Systems2. National Electric Code - NFPA 70, 2008 Edition.3. NFPA 110 - Emergency and Standby Power Systems4. IEEE Standard 446 - IEEE Recommended Practice for Emergency and Standby Power
Systems for Commercial and Industrial Applications5. NEMA Standard ICS10-1993 - AC Automatic Transfer Switches6. UL 508 - Industrial Control Equipment
B. The transfer switch manufacturer shall be certified to ISO 9001 International Quality Standard.
1.4 SUBMITTALS:
A. Submit shop drawings and product data under the provisions of Section 3800-3 - Engine GeneratorSystem for the Automatic Transfer Switch(s) including all optional features.
B. Shop drawings to include; all installation drawings, schematics, and wiring diagrams which showdetails of installation and connections to the work of other sections.
C. Product Data Sheets to include Equipment Ratings.
D. Control Data to include; electrical diagrams and interconnection wiring diagrams for all equipmentprovided, legends for all devices on diagrams and sequence of operation, explanations for allportions of all schematic wiring diagrams.
1.5 QUALITY ASSURANCE:
A. Acceptable Manufacturers: The Automatic Transfer Switch manufacturer shall maintain and staffengineering service and repair shops through the United States, including the State of Florida,trained to do start up service, emergency service calls, repair work, service contracts and trainingof customer personnel. Automatic Transfer Switch(s) by one of the following manufacturers' maybe incorporated in the work:1. Asco2. Square-D3. Caterpillar CTE
3850-1
B. Warranty:1. Provide units with a 5-year parts and labor warranty, where the Owner is not responsible for
any warranty costs including travel, labor, parts, or other costs for five (5) years from the dateof installation of the ATS.
C. Delivery, Storage and Handling:1. Deliver units with factory installed shipping skids and lifting lugs; pack components in factory-
fabricated protective containers.2. Handle units carefully to avoid damage to components, enclosures and finish. Do not install
damaged components; replace and return damaged components to ATS manufacturer.3. Store units in clean dry location and protect from the elements and construction traffic.
D. Start-up: A factory-authorized service technician shall perform start-up on each ATS. ("Start up"shall not include installation or termination of either power or control wiring). Start-up costsprovided with the bid shall include time and travel for the estimated number of visits required, butshall not be less than at least one half-day with travel. Additional labor or return trips to the siteshall be billed at the ATS supplier's published straight-time rates. The rates shall be submitted withthe ATS shop drawings. Upon completion, a start-up service report shall be provided.
2. PART TWO - PRODUCTS:
2.1 POWER TRANSFER SWITCH
A. Ratings:1. Basis of Design: ASCO Model No: 3AUS03400N1XH-11BG-14AA-44G-480V / 60HZ,
Service Duty Rated, 277Y/480 Volt 3 Phase, 400 Amp, 3 Pole, Solid Neutral, NEMA 4XEnclosure, with Programmable Engine Exerciser, Auxiliary Contacts and Strip Heater andThermostat with a 300 Amp Trip rating on the Main Breaker.
2. Transfer switches shall be rated to carry 100 percent of rated current continuously in theenclosure supplied, in ambient temperatures of -15 to +50 degrees Celsius, relative humidityfrom 0 to 95% (non-condensing), and altitudes up to 10,000 feet (3000M).
3. Transfer switch shall have fault withstand current rating of the complete assembly of 35,000amps RMS minimum. The interrupting and closing rating shall be equal to or exceed therequired withstand rating and shall be greater than the available fault current shown on thedrawings. The transfer switch and its upstream protection shall be coordinated. The transferswitch shall be UL 1008 listed and labeled for use.
4. Disconnecting and Overcurrent Protection Device: The normal connection shall be providedwith a thermal magnetic rated molded case circuit breaker with current ratings as listed. Itshall have a thermal magnetic trip unit.
B. Mechanically Held Transfer Switch:1. The transfer switch unit shall be electrically operated and mechanically held. The electrical
operator shall be a single-solenoid mechanism, momentarily energized. The switch shall bemechanically interlocked to ensure only one of two possible positions, normal or emergency.
2. The switch shall be positively locked and unaffected by momentary outages.3. All main contacts shall be silver composition.4. Inspection of all contacts shall be possible from the front of the switch without disassembly
of operating linkages and without disconnection of power conductors. A manual operatinghandle shall be provided for maintenance purposes. The handle shall permit the operatorto manually stop the contacts at any point throughout their entire travel to inspect and servicethe contacts when required.
5. Where neutral conductors are to be solidly connected, a neutral terminal plate with fully-ratedAL-CU pressure connectors shall be provided.
C. Connections:1. Field control connections shall be made on a common terminal block that is clearly and
3850-2
permanently labeled.2. Transfer switch shall be provided with AL/CU mechanical lugs sized to accept the full output
rating of the generator set.
2.2 TRANSFER SWITCH CONTROL:
A. The controller shall direct the operation of the transfer switch. The controller's sensing and logicshall be controlled by a built-in microprocessor for maximum reliability, minimum maintenance, andinherent serial communications capability. The controller shall be connected to the transfer switchby an interconnecting wiring harness. The harness shall include a keyed disconnect plug to enablethe controller to be disconnected from the transfer switch for routine maintenance.
B. The controller shall be enclosed with a protective cover and be mounted separate from the transferswitch unit for safety and ease of maintenance. Sensing and control logic shall be provided onprinted circuit boards. Interfacing relays shall be industrial grade plug-in type with dust covers.
C. Voltage and Frequency Sensing:1. The voltage of each phase of the normal source shall be monitored, with pickup adjustable
to 95% of nominal and dropout adjustable from 70% to 90% of pickup setting.2. Single-phase voltage and frequency sensing of the emergency source shall be provided.
D. Time Delays - Adjustable time delays shall be provided for the following:1. Override momentary normal source outages and delay all transfer and engine starting
signals.2. Transfer to standby, adjustable from 0 to 5 minutes for controlled timing of transfer of loads
to generator.3. Retransfer to normal, adjustable to 30 minutes. Time delay shall be automatically bypassed
if emergency source fails and normal source is acceptable.4. 5-minute cooldown time delay shall be provided on shutdown of engine generator.5. All adjustable time delays shall be field adjustable without the use of tools.
E. Additional Features:1. Set of contacts rated 10 amps, 32 VDC shall be provided for a low-voltage engine start
signal. The start signal shall prevent dry cranking of the engine by requiring the generatorset to reach proper output, and run for the duration of the cool down setting, regardless ofwhether the normal source restores before the load is transferred.
2. Push-button type test switch shall be provided to simulate a normal source failure.3. Push-button type switch to bypass the time delay on transfer to emergency, the engine
exerciser period on the retransfer to normal time delay whichever delay is active at the timethe push-button is activated.
4. Auxiliary contacts, rated 10 amps, 250 VAC shall be provided consisting of one contact,closed when the ATS is connected to the normal source and one contact, closed, when theATS is connected to the generator.
5. Indicating lights shall be provided, one to indicate when the ATS is connected to the normalsource (green) and one to indicate when the ATS is connected to the emergency source(red). Also provide indicating lights for both normal and emergency source availability.
6. Terminals shall be provided to indicate actual availability of the normal and emergencysources, as determined by the voltage sensing pickup and dropout settings for each source.
7. Engine Exerciser - An engine generator exercising timer shall be provided, including aselector switch to select exercise with or without load transfer.
8. Inphase Monitor shall be inherently built into the controls. The monitor shall control transferso that motor load inrush currents do not exceed normal starting currents, and shall notrequire external control of power sources.
9. Selective Load Disconnect - A double throw contact shall be provided to operate after a timedelay, adjustable to 20 seconds prior to transfer and reset 0 to 20 seconds after transfer. This contact can be used to selectively disconnect specific load(s) when the transfer switchis transferred. Output contacts shall be rated 6 amps at 28 VDC or 120 VAC.
3850-3
2.3 ENCLOSURE:
A. The ATS shall be furnished in a NEMA Type 4X - Stainless Steel enclosure with the following:1. Provide strip heater with thermostat for Type 3R/4X enclosure requirements.2. Controller shall be flush-mounted display with LED indicators for switch position and source
availability. It shall also include test and time delay bypass switches.3. Control wiring shall be rated for 600 volt, UL 1015. Wires shall be placed in wire duct or
harnessed, and shall be supported to prevent sagging or breakage from weight or vibration.All wiring to hinged doors shall be run through door terminal blocks or connection plugs.
2.4 OPTIONAL ACCESSORIES:
A. Communications Interface - Serial Module to allow local or remote communications with ATS communication software. To connect Automatic Transfer Switches, and ATS Annunciators to theserial network via an RS485 interface.
B. Programmable Engine Exerciser - A seven or fourteen day programmable engine exerciser withdigital readout display. Shall include one form C contact for availability of normal and emergency.Include "with or without" load control switch for exerciser period. The exerciser shall be backedup by a permanent battery.
C. Enclosure Heater - A 125 watt enclosure heater with transformer and thermostat (adjustable from30 Deg to 140 Deg F).
3. PART THREE - EXECUTION:
3.1 INSTALLATION:
A. Install the transfer switch as shown on Drawings. Make installation in accordance withmanufacturer's instructions.
B. Start-up and Inspection: On completion of the installation, start-up shall be performed by a factorytrained, authorized dealer service representative. Operation of each voltage, frequency, and timing device shall be checked for proper operation and initial setting.
C. Training: Provide the services of a factory authorized dealer representative to conduct a minimumof two one-hour training sessions in the operation and maintenance the installed transfer switchingequipment. Training sessions shall be conducted at the installation site and shall be held at timeand place designated by the Architect.
D. Before, during and after the installation up to the date of substantial completion, the ATS equipmentshall be protected from site contaminants, including but not limited to; concrete, mortar, drywall jointcompound, paint, grinder and drill debris.
E. Interior of cabinets to be free of all; drill debris, wire clippings, wire insulation, concrete dust, loosemanuals, shipping documents and any other foreign materials not indigenous with the equipmentand as identified by the Engineer.
F. Restore factory finish, marred, and damaged surfaces.
3.2 FUNCTIONAL REQUIREMENTS:
A. The service entrance rated automatic transfer switch shall automatically transfer the load to thegenerator supply in the event of a utility supply failure and return the load to the utility supply uponrestoration. The transfer switch shall incorporate an isolating mechanism and over currentprotection on the utility supply to allow operation as the main service disconnect in accordance with
3850-4
NEC requirements. The transfer switch power switching devices shall be mechanically andelectrically interlocked to prevent the utility and generator supplies from being interconnected.
B. Open Transition Sequence of Operations:1. When the voltage on any phase of the utility supply is below preset levels of rated voltage for
a preset time delay, a contact shall close to initiate starting of the generator set.2. The load shall transfer to the generator supply when the generator voltage and frequency
have reached acceptable preset levels and the warm-up time delay has expired.3. When the utility supply is restored to above preset levels of rated voltage on all phases, load
transfer from generator to utility supply shall be initiated following expiry of the utility returntimer.
4. Once the transfer mechanism operates and opens the generator power switching device, thetransfer mechanism shall stop in the neutral position (i.e. with both power switching devicesopen) for the duration of the neutral delay timer setting to allow load voltage to decay priorto re-connecting the utility supply.
5. The load shall be re-connected to the utility supply once the neutral delay timer expires andthe transfer mechanism continues operation and closes the utility power switching device.
6. The load shall immediately retransfer to the utility supply (if within acceptable limits) shouldthe generator supply fail prior to expiry of the utility transfer delay.
7. The generator set shall continue to operate following a load transfer for a cooldown delayperiod, and then a contact shall open to stop the generator set.
8. An "on load" test mode may be initiated which shall cause a simulated utility failure conditionand transfer the load to the generator set. The transfer sequence shall be the same as fora utility power failure except a neutral delay sequence shall occur when transferring fromutility to a generator source.
9. The load shall immediately retransfer to the utility supply (if within acceptable limits) shouldthe generator supply fail during an "on load" test mode.
3.3 FACTORY TESTING:
A. The transfer switch supplier shall perform a complete operational test on the transfer switch priorto shipping from the factory. A certified test report shall be provided with delivery of equipment. Test process shall include calibration of voltage sensors.
3.4 FIELD TESTING/COMMISSIONING:
A. The automatic transfer switch shall be tested once installed at the project site to confirm properoperation of the system. Schedule and witness testing activities shall be coordinated with theproject engineer, site contractor, and owner as required in advance of the testing. Qualified localfactory-trained field service representatives shall conduct the following tests:
B. Visual Inspection: Electrical and Mechanical inspection to verify the installation is correct asrecommended by the transfer switch manufacturer and as per NEC/CEC requirements.
C. Mechanical Tests: As a minimum, the following mechanical tests shall be performed on the transferswitch:1. Power Conductor Torque Verification2. Verification of Mechanical Interlock3. Manual ATS Mechanism Operation4. All Mechanical Fasteners/Wire Connections Tight5. Confirmation of correct transfer switch voltage, current and withstand ratings as is required
for the application.
D. Electrical Tests: As a minimum, the following electrical tests shall be performed on the transferswitch:1. Megger Testing the Power Cabling to the transfer Switch2. Verification of correct power cabling phasing and phase rotation, prior to energization.
3850-5
3. Confirmation of settings for all Timers & Voltage Sensors4. Full Function Test-Normal Operation-3 Complete Cycles of failing the utility supply, and
transfer load to/from the generator set.5. Verification of all Test Modes operate correctly
E. Qualified factory-trained field service personnel shall provide four (4) copies of field test reportsnoting any deficiencies that require corrective action.
F. The manufacturer of the transfer switch shall maintain service parts inventory at a central locationwhich is accessible to the service location 24 hours per day, 365 days per year.
G. The transfer switch shall be serviced by a local service organization that is trained and factorycertified in both generator set and transfer switch service. The supplier shall maintain an inventoryof critical replacement parts at the local service organization, and in service vehicles. The serviceorganization shall be on call 24 hours per day, 365 days per year.
H. The manufacturer shall maintain model and serial number records of each transfer switch providedfor at least 20 years.
END OF SECTION
3850-6
SECTION 3900-3 LEVEL CONTROL
1. GENERAL
A. Refer to the City of Ocala Water and Sewer Construction Manual
Specification Section 495.5.14 for Level Control System Specifications.
B. Specification Section 495.2.6 Level Controls shall be omitted and
replaced with information contained within this specification. Level
control set points shall be as indicated on the drawings.
2. REVISIONS TO STANDARD SPECIFICATIONS
A. 493.5.14.2 Type shall be amended as written below.
The level control system shall be air bubbler type complete with
air supply, air piping, and pressure transducer. Air bubbler level
control system shall send 4-20 mA signal to the SC2000 station
controller with change in wet well liquid level. Air supply shall be
continuous to the wet well and may require periodic tube purges
in order to maintain clean air tubing. Products for the bubbler
system shall be as shown on the drawings.
B. 493.5.14.3 Sequence of Operation shall be amended as written below.
The pump operation shall be completely controlled by the pump
controller shown on the drawings. The pump controller shall
receive signal from the level control system upon wet well fluid
level rise and fall. A second signal may be received from the NE
28th Avenue Recirculation Simplex Pump Station upon reaching
high level in the stormwater pond. If this signal is received, no
pumps at the Cameo Pond Pump Station shall be able to operate
unless manually started. Upon initial rise, first level set point shall
start Pump 1. Upon additional level rise to second level set point,
Pump 1 shall turn off and Pump 2, alternating with Pump 3 for
each pump run sequence, shall start. Upon further wet well level
rise, Pump 3, alternating with Pump 2, in addition to continued
operation of Pump 2, alternating with Pump 3 for each sequence,
shall start. Upon further level rise, Pump 1 shall start in addition
to operation of Pumps 2 and 3. With further wet well level rise,
high level float shall be activated and redundant signal shall be
sent for all pumps to run. Upon level fall, Pumps 2 and 3 shall be
turned off when reaching the pump off set point. Pump 1 shall
remain running until the wet well level reaches the Pump 1 off
level. Low level float is installed for redundancy. When low level
float is activated, all pumps shall be off.
C. 493.5.14.4 Automatic Pump Alternation shall be amended as written
below.
The pump controller shall automatically alternate operation of
Pumps 2 and 3 after each respective pump has run. Alternation
shall occur at the end of a pumping cycle.
D. 493.5.14.6 Pressure Sensor shall be amended as written below.
The pressure sensor shall be a strain gauge transducer and shall
receive an input pressure from the air bubbler tubing. The
transducer shall convert the input to a proportional electrical
signal for distribution to the display and electronic comparators.
The transducer output shall be filtered to prevent control
response to level pulsations or surges. Transducer over-pressure
rating shall be three times full scale. Transducer is mounted in the
air bubbler system panel, separate from pump controller.
3. MATERIALS
A. Air compressor shall be furnished to deliver free air at a rate of
approximately 5 cubic feet per hour and a pressure not to exceed 10 psi.
Air compressor shall be furnished with an intake air filter. Air compressor
shall come with corrosion resistant aluminum panel mounting bracket
fitting within the enclosure. Air compressor shall be model no. HR10WB3
as manufactured by Ingram Products, Inc.
B. A back check valve shall be included in the air bubbler piping to prevent
fluid from entering the compressor upon air piping purge or power
outage. Valve shall be model no. AP19CV0012NL as manufactured by
Ingram Products, Inc.
C. A fixed orifice choke shall be included in the system to reduce air flow
produced from the compressor. Orifice shall be model no. IM- .016 as
manufactured by Ingram Products, Inc.
D. A discharge air filter shall be installed directly downstream of back check
valve. Air filter shall be model no. AP19FV0012P1L as manufactured by
Ingram Products, Inc.
E. An air flow indicator gauge shall be provided and connected to the air
bubbler piping to provide a visual indication of rate of flow in standard
cubic feet per hour.
F. Pressure transducer shall be connected to the air bubbler piping.
Transducer shall measure air pressure in the piping and convert to 4-20
mA signal. Transducer shall be two-wire system connected to pump
controller receiving 20 VDC and sending 4-20 mA signal, indicating wet
well level. Transducer shall be model no. S-10 as manufactured by WIKA
Instrument Corporation.
G. Air bubbler piping shall be 1/2" stainless steel. Piping shall be installed
from bubbler system panel to junction box at wet well slab then proceed
down in to the wet well as shown on the drawings.
H. Air bubbler drop piping shall be secured in the wet well with a minimum
of two (2) stainless steel eye bolts.
I. Panel shall be sized to fit all components of the air bubbler system and
shall be located within 25 feet of wet well or as shown on the drawings.
Enclosure shall be rated NEMA 4X stainless steel.
4. INSTALLATION
A. Air bubbler enclosure shall be installed in location as shown on plans.
B. Air bubbler piping shall be installed below grade and cast into top slab.
C. Pump manufacturer shall be responsible to demonstrate at start-up that
level control system is compatible with pump controller and pumps.
SECTION 4000-3 PUMP CONTROL PANEL
1. GENERAL
A. Refer to the City of Ocala Water and Sewer Construction Manual
Specification Section 495.5.13 for Pump Control Panel Specifications.
Specifications below shall be supplemental to, and in some instances
in place of, those specifications provided in Section 495.5.13.
B. Pump Control Panel shall be located as indicated on the drawings.
C. Pump control panel shall be delivered to site completely assembled
with all components as indicated on the drawings. All components
factory assembled shall be tested and approved prior to shipping to
job site.
D. All components submitted on the Bill Of Material (BOM) during the
shop drawing phase will be subject to Owner preferences to maintain
commonality of components.
2. REVISIONS TO STANDARD SPECIFICATIONS
A. 495.5.13.1 Panel Enclosure shall be revised as written below.
The electrical components and control equipment shall be
mounted within NEMA 3R, dead front type control enclosures
fabricated of stainless steel. Enclosure doors shall be gasketed
with neoprene, hinged, and equipped with captive closing
hardware. Control compartments shall incorporate removable
back panels on which control components shall be mounted. Back
panel shall be secured to enclosures with collar studs. Panels shall
be mounted as shown on the drawings.
B. 495.5.13.6 Variable Frequency Drives shall be omitted. No variable
frequency drives will be required for this project.
C. 495.5.13.9 Emergency Disconnect Breaker shall be revised as written
below.
Provide automatic transfer switch breaker to switch to generator
power. No generator receptacle shall be required. Provisions shall
be made so main and emergency breakers from being on at the
same time. See Specification Section 03850-3 Automatic Transfer
Switches for additional requirements.
D. 495.5.13.14 Warning Light and Horn shall be omitted. No warning
light and horn shall be required for this project.
E. 495.5.13.15 GFI Receptacle shall be revised as written below.
A weatherproof duplex ground fault indicating utility receptacle
providing 115 volts, 60Hz, single-phase current, shall be mounted
on the front of the main panel. Receptacle circuit shall be
protected by a 20 ampere thermal-magnetic circuit breaker. This
receptacle shall be intended for programming and diagnostic use
only. Maximum of 5 amperes. There shall be a separate GFI
receptacle mounted externally from the control panel as shown
on the drawings for site equipment use.
F. 495.5.13.18 Pump Mode Selection shall be revised as written below.
Pump Mode Selection: Pump mode selector switches shall be
connected to permit manual start and stop of each pump
individually, and to select automatic operation of each pump
under control of the level control system. Manual operation shall
override all shutdown systems, but not the motor overload relays.
Selector switches shall be toggle switches meeting Military
Standards (MS) for quality. Switch contacts shall be rated 15
amperes minimum at 120 volts non-inductive.
A rotary type 3 position selector switch for hand-off-automatic
operation and a run pilot light for each pump shall be on the inner
door.
G. 495.5.13.21 Wiring shall be revised as written below.
Wiring: The pump station as furnished by the manufacturer shall
be completely wired except for the power feeder lines to the
branch circuit breakers and final connections to remote alarm
devices. All wiring, workmanship, and schematic wiring diagrams
shall be in compliance with applicable standards and
specifications set forth by the National Electric Code (NEC).
Control wiring from the wetwell shall enter the panel in a manner
to prevent the possible entry of gases from the wetwell. Conduit
shall enter the wet well and terminate with a fiber bushing. No
splices will be allowed in the wet well or conduit. All control and
motor cords shall be continuous to the control cabinet.
3. MATERIALS
3.1. Mounting Support
A. Electrical component cabinets shall be installed on three (3) 6-
inch square by 10 feet precast concrete poles with two (2)
number four reinforcing steel bars for support structure. Electrical
cabinets shall include but may not be limited to pump control
panel, air bubbler system panel, automatic transfer switch, CT
cabinet, meter, transformer, and main breaker panel.
B. Panels shall be physically mounted to equipment rack attached to
support poles.
3.2. Pump Control Panel Accessories
A. General
A. This section shall provide supplemental information to the City
of Ocala Water and Sewer Construction Manual Specification
Section 493.5 Pump Equipment for items required to be
installed within the pump control panel.
B. Pump Controller
1. The SC2000-34 Controller is to be manufactured by Motor
Protection Electronics of Apopka, Florida, (407) 299-3825.
2. The controller shall control up to four pumps to perform liquid
level control. The device must be capable of controlling any
mix of constant speed and variable speed pumps. The
controller shall be capable of alternating the pumps, and shall
provide lag pump delays and high and low level alarms.
3. The controller shall be standard “off the shelf” equipment
with published literature and fully tested hardware and
operating program. The controller shall be field configurable
from the front of the unit, and require no special tools or
software to set-up or operate.
4. The controller shall be a microprocessor-based device and not
require a battery to maintain the operating program. All set-
up values shall be stored in non-volatile memory.
5. The controller shall be UL listed as Industrial Control
Equipment, UL 508.
6. A numerical level display shall be provided on the front of the
unit. The display shall have a 3 digit, 7 segment LED display and
show levels in feet and tenths of feet.
7. The controller shall not require an external power supply or any
external I/O modules to be a fully functioning unit. An analog
input (4-20mA) with zero and span adjustments shall be
provided for the wet-well level input.
8. Relay outputs shall be provided as standard for high and low
level alarms and for the control of up to four pumps. Up to four
isolated analog outputs (4-20mA) shall be available as an option,
for VFD speed control when needed. Up to four isolated analog
inputs (4-20mA) inputs shall also be available as an option, for
use when needed as telemetry inputs.
9. All electrical connections, for power or I/O, shall be by quick-
disconnect, phoenix style connectors.
10. The controller shall have a minimum of 18 discrete inputs.
The inputs shall be transient protected and be programmable
for the following functions:
• Pump disable with HOA in OFF, or pump fault
• External Alternator Selector Switch
• All pump disable – for connection to Phase Monitor
• Limit number of pumps, called to run, while on
emergency power
• Alternation by External Time Clock
• Freeze wet well level during a bubbler tube purge
• Call pump last – for connection to VFD/Bypass logic
• Pump disable upon low level – for connection to low
level float switch
• Float switch backup
11. Troubleshooting features shall include a fault indicator on the
front of the unit and retrievable fault codes.
12. Status of the discrete inputs shall be viewable from the front
of the unit.
13. A level simulation feature shall be available from the front of the
unit. The controller shall automatically return to monitoring the
wetwell level after sixty seconds if left in the simulation mode.
14. Menu selectable First-On/First-Off or First-On/Last-Off
alternation sequences shall be available.
15. Menu selectable alternation modes shall include:
• Standard Alternation
• Jockey pump (Pump 1 stays on when other pumps turn
on)
• Jockey Pump (Pump 1 turns off when other pumps turn
on)
• Split alternation (Pumps 1&2, Pumps 3&4)
• Fixed sequence (Pump 1 always lead)
• Stepped on/off (Only one pump runs at a time)
16. Pump disable discrete inputs shall cause the alternator to skip
over disabled pumps.
17. The controller shall remember which pump was in the lead
position during a power outage.
18. An RS232 serial port with Modbus RTU protocol shall be
provided for SCADA.
19. Programming shall be in place to collect and transmit the station
status, and to allow for the remote control of the pumps.
20. The pump On/Off levels, high level alarm, low level alarm setup,
and VFD speed values shall be viewable and changeable from a
remote location.
21. Pump elapsed time meters shall be viewable and resettable
from a remote location and shall be stored in non-volatile
memory during a power outage.
22. For VFD operation, the controller shall have menu selectable
parameters to form a linear wet-well level versus pump speed
curve. This pump speed curve shall include the parameters VFD
Minimum Speed, Level at Minimum Speed, and Level at 100%
speed.
23. Typical operation for Controller operating on VFD shall be:
• As the level rises to a PUMP ON LEVEL, a Pump/VFD is
called for, and ramps up to 100% speed as the level
increases. As additional pumps are called for, they are
started and ramped to 100 % speed. As the level
decreases below the 100 % speed point, the speed of
the VFD(s) is ramped down. When the level drops to a
PUMP OFF LEVEL, the pump/VFD is turned off.
24. The controller shall contain inputs for Bypass logic. These
inputs shall cause the controller to favor pumps with
operational VFDs over pumps that have VFDs in the Bypass
Mode.
25. The controller shall contain a discrete input for connection to
an external time clock to force pump alternation.
26. The controller shall be capable of accepting four additional
analog input signals, as well as the input level signal. These
additional analog input signals are used for telemetry
purposes only, and this information shall be re-transmitted by
the controller via ModBus communication protocol.
27. The controller shall have a parameter setting to allow the
analog input level to be a 4-20mA signal from a transducer or
an input from a conductance level probe. The controller shall
also have a parameter that will allow the level probe to be
used as a back-up level measurement device to the analog
transducer input.
28. The controller must have a level probe connection capable of
interfacing to a conductance level probe with ten sensor
points.
29. The controller shall have a parameter to select the level probe
type by the distance between the electrodes.
30. The controller shall have a choice of impedance settings for
use with a conductance probe.
31. The controller shall have a level offset parameter to enable
the transducer or conductance level probe to be placed off the
bottom of the wetwell, while maintaining an accurate
representation of the wetwell depth.
32. The controller shall be able to perform float back-up using
from 2 to 7 floats.
C. Wireless Radio Receiver
A. General Operation: Radio receiver shall receive 900 MHz RF
signal from NE 28th Avenue Drainage Retention Area Simplex
Pump Station sent by Wireless Radio Transmitter for high level
alarm. Upon receiving signal, radio receiver shall convert the
analog signals and switch status to a 4/20 mA signal and send
to the pump controller to prevent any pumps from operating.
B. Wireless radio receiver shall be model DR9021 as
manufactured by Wilkerson Instrument Company, Inc.
Wireless radio transmitter shall be model DR9011 as
manufactured by Wilkerson Instrument Company, Inc.
C. Wireless radio units shall be capable of operation up to three
miles.
D. Wireless radio receiver shall indicate that it is receiving a
signal by LED light on the front of the unit.
E. Wireless radio receiver shall mount to DIN rails within the
main control panel.
F. Warranty: Product shall have a minimum five-year warranty
from manufacturer.
D. Remote Terminal Unit
1. Radio transmitter shall utilize 400 MHz frequency and shall be
model SD4 as manufactured by General Electric Company, Inc.
or engineered approved substitution. Frequency to be used is
452.900 MHz as designated by the Owner.
2. Transmitter shall receive input signal from Pump Controller via
RS-232 Serial Port.
3. Transmitter shall have coaxial cable port to connect with
antenna.
E. Antenna
1. Antenna shall have broadcast frequency of 452.900 MHz as
designated by the owner.
2. Antenna shall have minimum 20 MHz operating bandwidth.
3. Antenna shall be constructed of grade 6061-T6 seamless
aluminum with stainless steel hardware.
4. Antenna shall be Laird Yagi or engineer approved substitution.
SECTION 03000-4 CAMEO POND STORM DRAIN
COMPONENT PROJECT - PART 4
SECTION 3100-4 GENERAL
1. This section covers supplemental technical specifications not covered in thestandard specifications.
2. The City of Ocala "General Conditions for Construction", Volume I and“Standard Specifications for Water and Sewer Construction”, Volume III, alongwith FDOT Standard Specifications for Road and Bridge Construction, latestedition, Divisions II and III shall govern the execution of this ComponentProject - Part 4 as specified and amended by these Contract Documents.
3. The contractor will be required to submit Traffic Control Plans (signed andsealed by a licensed engineer) to be approved by FDOT, City of Ocala and theConsultant.