fuel system spec 15191

7/21/2019 Fuel System Spec 15191

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GHAYATHI COMMUNITY HOSPITAL SEHA-G/TEN/44/2009

Abu Dhabi - UAE Section 15191

Burt Hill Project No. 10710.00 Fuel Oil System and AccessoriesTechnical Specifications Tender Documents

Book V Mechanical Works Date of Issue: 16thFebruary 2011

BURT , HILL Page 1 of 17

SECTION 15191

FUEL OIL SYSTEM AND ACCESSORIES

PART 1 - GENERAL ......................................... ............................................... ..................................... 21.1 RELATED DOCUMENTS............................................ ........................................... ............ 21.2 SUMMARY ......................................... ............................................ ..................................... 21.3 PERFORMANCE REQUIREMENTS..................................................................................31.4 SUBMITTALS............. .......................................... ........................................... .................... 31.5 QUALITY ASSURANCE.....................................................................................................3

PART 2 - PRODUCTS.......................................... ........................................... ...................................... 42.1 PIPING MATERIALS ......................................... ............................................ ..................... 42.2 SPECIALTY VALVES............................ ........................................... .................................. 6

2.3 FUEL OIL TRANSFER PUMPS................................... ....................................... ................ 62.4 BULK STORAGE TANKS ABOVE GROUND.................................... ........................... 72.5 BULK STORAGE TANKS - UNDERGROUND .................................................... ............ 92.6 DIESEL FUEL DAY TANK............................................. ............................................... ... 102.7 FUEL LEAK DETECTION SYSTEM ........................................ ....................................... 102.8 FILL POINT ASSEMBLY.................................................... ........................................... ... 112.9 BUILDING AUTOMATION SYSTEM INTERFACE.................................... .................. 12

PART 3 - EXECUTION ..................................... ........................................... ....................................... 123.1 TANK HANDLING................................. ........................................... ................................ 123.2 TANK SITE................................................. .......................................... .............................. 133.3 FOUNDATION............................................... ........................................... ......................... 133.4 PIPING APPLICATIONS.............................................. ........................................... .......... 14

3.5 VALVE APPLICATIONS ......................................... ........................................... .............. 143.6 PIPING INSTALLATION ..................................... ........................................ ..................... 143.7 JOINT CONSTRUCTION ..................................... ........................................ ..................... 153.8 VALVE INSTALLATION.................................................... ....................................... ....... 153.9 HANGER AND SUPPORT INSTALLATION ...................................... ............................ 153.10 CONNECTIONS.......................................... .............................................. ......................... 153.11 FIELD QUALITY CONTROL ......................................... ........................................... ....... 163.12 TESTING ...................................... ........................................... ........................................... 163.13 DEMONSTRATION............................ ............................................ ................................... 163.14 SAFETY............................................... ........................................... .................................... 173.15 ELECTRICAL.............................................. ........................................... ............................ 173.16 LEAK DETECTION SYSTEM .................................... ............................................ .......... 17


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SECTION 15191

FUEL OIL SYSTEM AND ACCESSORIES

PART 1 - GENERAL

1.1

RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and SupplementaryConditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A.

Drawings and general provisions of the contract apply to this section. Provide a complete

system of fuel oil piping including connections to storage tank installation. Extent of thefuel oil piping work is indicated on the drawings and by requirements of this section andincludes but is not limited to the following:

1.

Fuel oil piping from storage tank to Diesel Generator.

2.

Fuel oil storage tanks and accessories

3.

Double wall containment piping, specialties and accessories.4.

Leak detection system including cable panels and all conduit and wiring.

5.

Fuel transfer pumps

B. Related Sections include the following:

1.

Division 2 Section "Fuel-Oil Distribution" for fuel oil storage tanks and fuel oil

piping, specialties, and accessories outside the building.2.

Division 15 Section "Basic Mechanical Materials and Methods" for flexible

connectors.3.

Division 15 Section "Meters and Gages" for pressure gages.

4.

Division 15 Section "Plumbing Specialties" for strainers.

5.

Division 15 Section Building Management System for monitoring.

C.

Specialist Design Notes:

1.

The contractor shall at his cost appoint a specialist subcontractor for fuel oil systems.The specialist subcontractor shall be one of those listed elsewhere in the specification

and be approved by the local Civil Defense Authority and subject to Engineers

approval. The specialist subcontractor shall be entirely responsible for the design,

verification, supply, installation, testing and commissioning of the fuel oil systems inline with the specification, drawings and to engineers and local Civil Defence

Authorities approval. After preparation of shop drawings and their approval by theengineer the specialist subcontractor shall obtain their approval from the local Civil

Defence Authority. After installation, testing and commissioning of the various

systems, the specialist subcontractor shall arrange inspection by the local Civil

Defense Authority and obtain their approval of the installation.


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1.3

PERFORMANCE REQUIREMENTS

A.

Minimum Working-Pressure Rating: Unless otherwise indicated, minimum pressure

requirement for fuel oil piping is 150 psig (1035 kPa).

1.4 SUBMITTALS

A.

Product Data: For the following:

1. Specialty valves.2.

Fuel oil transfer pumps. Include rated capacities; shipping, installed, and operating

weights; furnished specialties; and accessories.

3.

Above ground storage tanks and under ground storage tank and accessories.

B.

Shop Drawings: Fuel oil piping, storage tank, fuel transfer pump. Include plans and

attachments to other Work.

1.

Wiring Diagrams: Power, signal, and control wiring. Differentiate between

manufacturer-installed and field-installed wiring.

C. Field Test Reports: Indicate and interpret test results for compliance with performancerequirements.

D.

Maintenance Data: For fuel oil transfer pumps to include in maintenance manuals specified

in Division 1.

1.5

QUALITY ASSURANCE

A.

Product Options: Drawings indicate size, profiles, and dimensional requirements of oil

transfer pumps and are based on the specific model indicated. Other manufacturers'products complying with requirements may be considered. Refer to Division 1 Section

"Substitutions."

B.

Electrical Components, Devices, and Accessories: Listed and labeled as defined inNFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and

marked for intended use.

C.

Comply with ASME B31.9, "Building Services Piping," for fuel oil piping materials,installation, inspection, and testing.

D.

Comply with NFPA 30, "Flammable and Combustible Liquids Code," and NFPA 31,"Installation of Oil Burning Equipment," for fuel oil piping materials, components,

installations, inspection, and testing.

E.

Installer shall have at least 5 years of successful installation experience on projects with

fuel oil systems work similar to that required for the project.


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F. Storage tanks shall meet the following:

1. U.L. 142, Underwriters Laboratories, Inc., Steel Aboveground Tanks for Flammable

and Combustible Liquids.2.

NFPA 30, National Fire Protection Association Flammable and Combustible Code.

3.

NFPA 30A, National Fire Protection Association Automotive and Marine ServiceStation Code.

4.

NFPA 31, Standard for Installation of Oil Burning Equipment.

5.

Southwest Research Institute SWRi 97-04 fire resistant tank performance standard.

PART 2 - PRODUCTS

2.1

PIPING MATERIALS

A.

Refer to Part 3 "Piping Applications" Article for applications of pipe, tube, and fitting

materials.

B. Steel Pipe: ASTM A 53, Type S, Grade B, Schedule 40, black.

1.

Malleable-Iron Threaded Fittings: ASME B16.3, Class 150, standard pattern, with

threaded ends according to ASME B1.20.1.

2.

Unions: ASME B16.39, Class 150, malleable iron with brass-to-iron seat, groundjoint, and threaded ends according to ASME B1.20.1.

3.

Cast-Iron Flanges and Flanged Fittings: ASME B16.1, Class 125.

4.

Steel Welding Fittings: ASME B16.9, wrought steel or ASME B16.11, forged steel.

5.

Steel Threaded Fittings: ASME B16.11, forged steel with threaded ends according to

ASME B1.20.1.6.

Steel Flanges and Flanged Fittings: ASME B16.5.

7. Gasket Material: Thickness, material, and type suitable for fuel oil.

C. Buried Piping: Carrier shall be steel pipe, ASTM A-53, Grade B, schedule 40 seamless. Alljoints shall be butt welded for sizes 65mm and greater and socket or butt welded for 50mm

and below.

The secondary containment shall be a fabricated out of steel pipe in accordance with ASTMA-53 Grade B, schedule 40.

The carbon steel containment pipe shall have a fiberglass reinforced polyester (FRP)external cladding at least 3mm thick. The cladding shall be applied to a shot blasted steel

surface.

The cladding on straight sections shall consist of multiple layers of helical windings ofcontinuous glass reinforcements applied at a winding angle 58 to 62. The cladding on

fittings shall consist of either a chopped spray-up polyester resin / fiberglass reinforcement

composite, or wrapping of glass cloth fully saturated with a two part catalyst adhesive.

All field joints shall be covered with a wrapping of glass cloth, fully saturated with a two

part catalyst adhesive, identical in properties to the factory applied in cladding system. Theminimum thickness of the field hand lay-up shall be 3mm.


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Leak Detection System for buried piping ; The secondary containment system manufacturer

shall furnish a cable leak detection / location system. The piping shall be designed to allowpulling of the leak detection cable into the containment pipe, both during and after piping

installation. Containment pull ports shall be located a maximum of 150 mtrs apart for

straight runs and reduced by 50 mtrs for every 900

change in direction. The leak detection /location system shall consist of microprocessor based panel capable of continuous

monitoring of a sensor string for leaks / faults. The unit shall have a sensing range 600 mtr

per cable with up to eight cables per panel. The alarm unit(s) shall operate on the principle

of pulsed energy reflection and be capable of mapping the entire length of the sensor cableand storing the digitized system map in non volatile memory. The alarm units shall provide

continuous indication that the sensor cable is being monitored.

After proper acknowledgement of a minor leak, the leak detection / location system shall be

capable of monitoring the entire sensing string for additional leaks, even if they are smallerthan the leak previously acknowledged. The system shall be capable of accounting for

minor installation irregularities, static moisture and puddles such as condensation with noloss in accuracy or sensitivity. The system shall locate the point of origin of the first leak or

fault within + 1% of the distance from the last calibration point to the leak or + 5 feet,

whichever is greater. The monitoring unit shall report and record to nonvolatile memory,

the type of fault, distance, date and time of an alarm.

The alarm unit(s) shall be enclosed in a modified NEMA 12 enclosure and have a two lineby forty character display providing status and alarm data. The monitoring unit(s) shall be

field connected to an alarm horn. The monitoring unit shall be U.L. listed and FM approvedto provide connections for intrinsically safe sensor circuits for use in a Class I, Division I,

Groups C and D hazardous locations.

Ability to locate a leak shall not depend on battery backed-up function. In the event of

power failure, system conditions and parameters shall be stores in nonvolatile memoryallowing the units to automatically resume monitoring without resetting, upon restoration ofpower.

The monitoring unit(s) power requirements shall be 230 VAC, 50 Hz, single phase.

Monitoring units shall be equipped with an RS-232 communication port and a common

alarm relay for the panel and one relay per cable.

The sensor cable, connectors (probes) and jumpers shall be supplied by the manufacturer of

the monitoring unit(s). The cable sensing principal shall provide for continuous monitoring

while short lengths of the cable are in contact with liquids without altering the system

sensitivity and / or accuracy. The sensor cable shall be designed as follows.

Sensor cable shall be of fluoropolymer and polymer coated wire construction, with noexposed metal parts. Cable shall detect water-based, chemical and hydrocarbon liquids. The

sensor cable can be flushed and dried in-place and will not require replacement after a leakevent of any volatile liquid. The cable shall have a breaking strength of at least 100 pounds

and shall be resistant to corrosion, abrasion and most chemical tested in accordance with

exposure procedures in ASTM D543.

D.

Transition Fittings: Type, material, and end connections to match piping being joined.

E. Pipe Connectors: UL 567, swivel or compression type for connection to equipment.


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F. Common Joining Materials: Refer to Division 15 Section "Basic Mechanical Materials and

Methods" for joining materials not in this Section.

2.2

SPECIALTY VALVES

A. Oil Shutoff Valves: UL 842; metal-body ball valve with threaded ends according to

ASME B1.20.1 for pipe threads.

B.

Pressure-Reducing Valves: UL listed for fuel oil service. Include bronze body with 150-

psig (1035-kPa) minimum pressure rating.

C.

Oil Safety Valves: UL listed for fuel oil service. Include metal body; broken-line, oilshutoff feature; and 40-psig (275-kPa) minimum pressure rating.

D. Solinod Valves: UL listed aluminum body with threaded ends explosion proof water tighttype 3S.

E. Free Fall Fire Valves: leak proof, positive action mechanism, cast iron body maximum

pressure 14 bar, fusible link 71oC, type-44, screwed with 15m cable.

2.3

FUEL OIL TRANSFER PUMPS

A. Fuel Oil Transfer Pump: Comply with HI 3.1-3.5, single stage, internal-gear, positive-displacement, rotary type. Include steel base; foot-mounted, cast-iron housing; steel gears;

tungsten bronze steel bearings; steel shaft; mechanical seals; and built-in pressure relief

bypass UL Listed for fuel oil service.

1.

Drive: Direct flex coupled.2.

Motor: Comply with Division 15 Section "Motors."

B.

Fuel Oil Transfer Pump Sets: Factory-fabricated and -wired, packaged unit; for fuel oil

service, listed and labeled by a nationally recognized testing laboratory acceptable to

authorities having jurisdiction; with base, strainer, two fuel oil pumps, and controls.

1. Base: Steel with pumps, accessories, and controls factory mounted skid having drippan to hold fuel in case of any leakage from pump and shall have a leakage alarm

should activate if not attended.2.

Pumps: Comply with HI 3.1-3.5, single, internal-gear with crescent, positive-

displacement, rotary type. Include foot-mounted, cast-iron housing; steel gears;

tungsten bronze steel bearings; steel shaft; mechanical seals; and built-in pressure

relief bypass.3.

Drives: Direct flex coupled.

4.

Motors: Comply with Division 15 Section "Motors". TEFC rigid bare, standard IECframe motors explosion proof Eex d11 B t4 pump and motor.

5.

Piping: Steel with ferrous fittings and threaded or welded joints.

6.

Strainer: Duplex, basket type with corrosion-resistant-metal-screen baskets with

differential pressure switch and gauge.

7. Compound and pressure gauges: Provide and mount a compound gauge on thesuction side of the strainers. The gauge shall read 15 psig. Provide and mount a


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pressure gauge on the discharge side of each pump. Gauges selected must provide

mid-scale readings under normal operating pressures. Each gauge shall be equippedwith an isolation ball valve.

8.

Control Cabinet: Provide a completely pre-wired and factory tested control cabinet to

ensure job site reliability. The pump set and control cabinet shall be the product ofone manufacturer for single source responsibility. The control cabinet shall be

constructed to NEMA 12/13 standards. Doors shall be fully gasketed with a turned

edge, piano hinges, and a three point lockable latching mechanism. Cabinet interior

shall be primed and finished in a white gloss, chemical resistant enamel. Cabinetexterior shall be primed and finished in durable, Chemical resistant, textured gray

enamel, suitable for industrial environments. All control wiring shall be terminated at

a numbered terminal strip to facilitate field connections to remote equipment. All

switches shall have maintained contacts. All cabinet front devices shall be identifiedby black phenolic labels with engraved white lettering. Cabinet shall consist of, but

not be limited to the following:

a. Magnetic motor starters with overload protectionb.

Motor circuit breakers

c.

Hand-Off-Auto switch for each pump

d.

Pump selector switch for selection of Lead Pump

e. Power in indicating lightf.

Pump running indicating lights

9.

Factory Testing: Pump sets must be fully tested prior to delivery. First, the complete

pump set shall be pressure tested to rated pressure and job flow. The test shall

confirm that the pump set piping system can maintain rated pressure for 4 hours. Thepump set shall be connected to a fuel oil supply and return. The pump set shall be

operated normally. Motor amps shall be noted at no load and full load for each motor.The motor amps shall be within 10% of rated motor amps. During the test, the reliefvalve shall be set and tested. Operation of pump set instrumentation shall be tested. A

copy of the test procedures shall be sent to the consulting engineer.

2.4

BULK STORAGE TANKS ABOVE GROUND

A.

The above ground and below ground storage tank system shall be rectangular in shape and

UL 142.

B.

The primary steel tank shall be continuously welded and pressure tested at 5 psig for 24 to

48 hours.

C.

The primary steel tanks shall have emergency vent system as per NFPA 30 Code

requirements.

1.

Vent tank to a remote location utilizing steel pipe equal to or greater in size than thevent outlet. Slope the vent piping to ensure that all condensed vapors drain back to

the tank.


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D. The protected and insulated systems shall have a thru-tank leak detector tube to allow for

physical checkup and monitoring capability between the primary and the secondarycontainment.

E.

The primary steel tank shall be pressurized at 5 psig during concrete encasement.

F.

The outer surface of the primary steel tank shall be covered by a minimum of 1/4 thick(6.4 mm) Styrofoam insulation panels.

G. The secondary containment shall consist of a 30 Mil thick (0.76 mm) High-DensityPolyethylene membrane enclosing the steel tank and insulation material.

H.

The primary steel tank and the secondary containment shall be encased in six inches of

monolithic reinforced concrete, with minimum design strength of 4,000 and 5,000 psi at 28days depending on the tank size. The concrete design shall include the following for long-

term durability: air entrainment, water reducing admixture, and steel reinforcement.

Concrete encasements with seams will not be approved.

I.

The protected and insulated systems shall be of concrete exterior and a continuous and

visually verifiable monolithic (seamless) pour on top, bottom, ends, and sides and containno cold joints or heat sinks (heat transfer points). The tank must be shop fabricated and

tested in accordance with the UL listings. Designs that use two layers of steel with

insulation material between them will not be approved.

J. No steel or insulating material shall come in contact with the concrete or other corrosivematerial.

K.

All openings shall be from the top only.

L.

All exposed metal with the exception of stainless steel must be powder coated to inhibit

corrosion.

M. The protected and insulated systems shall include a 15-gallon powder coated or stainlesssteel, UL listed spill containment, and shall include normally closed valve to release spilled

product into the primary steel tank. Spill containment which route the spilled product into

interstitial area will not be approved.

N.

The protected and insulated systems shall have a coated concrete exterior to resist weather

and reflect sunlight. Models with steel exteriors will not be approved.

O.

The protected and insulated systems shall have a warranty of 30 years for systems 2,000

gallon capacity and larger and 20 years for systems 1,000 gallon capacity and smaller with

optional 30-year warranty.

P.

The protected and insulated systems design shall have been in use for a minimum of

eighteen (18) years. The manufacturer must stipulate no reportable containment system

failure in 28,000 units produced.

Q.

The protected and insulated systems shall have two (2) bolts for connecting grounding

conductors for lightning protection in accordance with NFPA 780.


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2.5 BULK STORAGE TANKS - UNDERGROUND

A. The underground double wall tank technology utilizing an inner steel tank 6 mm tick of UL

58 thickness contained within an steel tank outer fiberglass 3 mm thick. A polyesterfilm/mesh standoff is installed between tanks and a factory installed vacuum gauge is used

to monitor the space between the tanks. The UL 58 thickness steel tank to maintainstructural integrity and product compatibility with an outer steel tank providing corrosion

protection and secondary containment. A factory sealed vacuum on the interstitial space

ensures tank integrity. Dielectric bushings are to be used to the edge of each fitting. The

resulting tank has the structural strength of steel and the corrosion resistance with cathodicprotection . Wear plates under each tank opening greater that inhibit internal corrosion.

The double wall underground storage tank utilizes a full-thickness UL 58 primary steel tank

in conjunction with a outer tank wall to create a strong, double wall tank.

The primary tank, made of steel, and the outer tank, made of steel are both manufactured in

accordance with standards of Steel Tank Institute and Underwriters Laboratories. Thisdouble wall design is classified as a Type II by Underwritiers Laboratories. The interstitial

space shall be monitored using a leak detection methods as specified elsewhere.

Provide a cost reducing interstitial Precision Test System (PTS) as a standard Precision Test

System (PTS) as a standard feature. The Precision Test System shall meet third-party

testing. Requirements established by the U.S Environmental Protection Agency (EPA) for

tightness testing of underground storage tanks in excavations.

B. Means should be provided to isolate the storage tanks, pumps and dispenser from each otherin case of fire or other emergency incident. This may be achieved by the provisions of

remotely operated shut off valves situation in compound and at dispensers.

C.

Storage tanks should never be filled beyond a maximum fill limit of 86.6 % of total storagevolume .A fixed liquid level gauge or means of preventing the overfilling of the storage tankbeyond this should be incorporated. Compliance EN 12285 1, UL 2085, BS 799-5

required.

D.

Tanks and lids shall be supplied with provisions for the connections of fill vent discharge

and vapour return lines as well as contents measurement testing leak detections from an

integral part of the over all design of the pipe work system. The tanks should be earthed toprotect from lightning damage.

E.

Warranty: For double wall underground storage tanks shall be a 30-year limited warrantyagainst tank failure caused by cracking, breakup or collapse; corrosion caused by reaction of

the tank with its soil environment; and internal corrosion for those tanks equipped with wear

plates and used to store heating or motor fuels, including alcohols, and other compatiblechemicals. In addition manufacturer to provide a warranty tank against failure due todefective materials and workmanship for one year following the delivery of the tank. Each

double wall tank is registered with STI by its serial number. A copy of the complete

warranty shall be available from qualified STI manufacturers.

F. Cathodic Protection for UST with an impressed current system with rectifier to convert

alternating current to direct current shall be provided. This is current is sent through aninsulated wire to the anodes, which are special metal bars buried in the soil near the UST.

The current then flows through the soil to the UST system and returns to the rectifier


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through an insulated wire attached to the UST. The UST systwm is protected because the

current going to the UST system overcomes the corrosion-causing current normally flowingaway from it

The system must be tested by a qualified cathodic protection tester within six monthd of

installation at at least every three years theeafter. You will need to keep the results of thelast two tests to prove that the cathodic protection is working. In addition, you must inspect

an impressed current system every 60 day inspections to prove that the impressed current

system is operating properly.

2.6

DIESEL FUEL DAY TANK

A.

Diesel Fuel Day Tank Should Have The Following Specifications

1.

A UL 142 listed, painted steel day tank with 660 US gal capacity, to supply fuel to

the generator. A bronze gear pump which exceeds the maximum flow of fuel drawn

by the engine fuel supply pump, including fuel returned from the engine, shall be

mounted on the tank and powered by a 230 VAC single phase motor. The pump shall

be controlled by low/high level switches mounted inside the tank. Provide pipingconnections for fuel suction / return lines to fuel storage tank, fuel supply / return

lines to engine, and emergency vent. Include local fuel fill, tank drain connection,

removable inspection plate with rupture basin to contain 150% capacity, fuel in

rupture basin switch, high/low fuel level switches for remote Annunciator, UL 508AListed Control module, fuel strainer, as shown on the detailed drawings.

2.7

FUEL LEAK DETECTION SYSTEM

A.

Provide a leak detection system capable of continuous monitoring with leak sensing , and

programmable leak testing.

B. System modules shall be easily replaceable and shall allow for easy upgrade.

C.

System shall be complete with internal printer, through RS232 ports (modem, local, passthrough) and two relays for rmote alarms.

D.

System shall monitor and report the following:

1.

Fuel heigh and volume

2. Water height and volume

3. Usage to selectable percent of tank capacity4.

Monitoring up to 24 leak type liquid thermistor sensors for interstitial spaces and

pumps.

E.

System shall include transformers, relays, terminals etc. for a complete working system.

F. Provide sensors at interstitial space of tanks at containment manways including conduit and

wiring from sensor to leak detection system. Furnish three (3) spare sensors to the owner.


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G. Supply, install and commission Leak detection for under ground storage tank, day tank.

Leak detection tape and alarm system shall be installed within each standby generator roomand the oil tank room.

H.

The leak detection control panel shall be placed in the security rooms as agreed by

Engineer/ as shown in the drawings. The leak detection control panel shall be capable tomonitor the fuel levels in the fuel tanks and leakage in the fuel supply piping.

I.

Contractor shall use the pipe line leak detection system as supplied by TraceTek by TYCO

Co, USA. The system shall be equal to the TTSIM-2 sensor interface module with LCD and

relay. The TTSIM-2 sensor interface module shall be placed next to the fuel leak detection

control panel. The TraceTek system shall be capable to sense leak at any point in thepiping. BMS system shall be interfaced to read the leak alarm and levels of the diesel tanks.

J.

Each system shall be fuel/ oil sensing and shall sensing cable detects the presence of liquid

hydrocarbon fuel at any point along its length, yet does not react to the presence of water.

Installed with Alarm and locking module, the cable senses the liquid, triggers an alarm andpin point the location of the leak with in 1 meters. Sensing cable mechanically strong and

chemically resistant. The core of cable is constructed of two sensing wires, an alarm signalwire, and a continuity wire. Sensing cable have UL and FM approvals. The alarm modules

shall have built in self test capabilities activated from front panel by user command. Power

supply to alarm panel shall be 230V/50HZ.

K.

Under Ground storage tank leak detector that uses a combination electr-optic technology

that distinguishes between water and oil. The detector shall contain an infrared opticalliquid detector and a set of stainless steel conductivity rings. The leak detector shall be

connected to tank gauges and leak detection system the detector shall monitor for leaks

through the inner wall or outer wall of double walled fuel oil tank. Sensor shall be 3 wire,

suitable for conditions in conduit, leak detector shall include an integral detector test switch,all wetted parts shall be stainless steel.

2.8

FILL POINT ASSEMBLY

A.

Fill Cabinets provide a secure fill point for fuel delivery, the design is robust and able to

withstand many years of continual use whilst remaining aesthetically pleasing throughout.

B.

The standard range of Fill Point Cabinets are constructed from mild steel and are suppliedcomplete with toughened glass vision panel, drip tray, flush fitting lockable handle and

architrave for recessed installation. Each cabinet is finished in O6 C 39 Saddle Brown

polyester powder coat, with alternative color to engineers approval.

C.

The Manufacturing process includes the formation of all mounting holes and support fixing

for ancillary equipment together with pipework and electrical entry points, prior to finalpainting. This negates the requirement for on site drilling of the cabine during installation,

which invariably leads to premature rusting.

1.

Mount ancillary equipment within the Fill Cabinet, this includes the installation of

incoming electrical isolators, pre wiring overfill alarm panels and hydrostatic gauge

circuitry.


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D. Provide full shut off using a hand wheel gate valve, with captive brass cap and chain.

Supplied complete with supporting flanges, nipples, nut and bolts for simple installationinto a fill point cabinet.

E.

Provide the range of fill point cabinet manufactured with both the fuel pipe entrance hole

and supporting flange boltholes already formed.

F.

In addition, Provide the fill valve assembly is supplied with two flange gaskets, one for

each side of the fill cabinet back box, these gaskets will preserve the paint finish of the

cabinet and therefore prevent corrosion.

1.

Fill valve assembly shall be 50 mm

Provide an audible and visual alarm on high fuel level, with Test and Mutefacility.

G.

Constructed using diecast aluminium enclosures with IP 65 rated lamps and pushbuttons,

the alarm panels require a 230V ac operating supply whilst providing a 12V dc control

circuit to a make on rise float switch. Standard alarm panels are finished in an O6 C 39

saddle Brown, polyester powder coat.

H.

In operation, prior to the commencement of fuel delivery, the Test button should be

depressed to ensure that both the audible and visual alarms are in working orger.

I.

The alarm panels emit an audible alarm on sensing a high fuel level, a red warning lamp

will also illuminate. By pressing the Mute button, the audible alarm will be silenced, thered warning lamp will remain illuminated whilst the fuel level remains at high level.

2.9

BUILDING AUTOMATION SYSTEM INTERFACE

A.

Provide auxiliary contacts for interfare to building automation system, including the

following.

1.

All diesel tanks levels for quantity

2.

Leak detection panel

3. Transfer pump on/off and alarm status.

PART 3 - EXECUTION

3.1

TANK HANDLING

A. Do not handle or install tank without having knowledge and experience in proceduresinvolved with proper and safe installation of an aboveground tanks.

B.

Do not handle or move the tank unless it is empty. Under no circumstances should a tank

containing petroleum product be moved. Do not drop or drag the tank.


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3.2 TANK SITE

A. Tanks location shall be as shown on the drawings.

3.3

FOUNDATION

A.

Provide a foundation for the tank designed to support the tank plus the weight of the

maximum amount of product the tank will be sorting. The foundation design must alsoinclude provisions for draining surface water away from the tank to minimize the risk of

fuel accumulation under the tank from overfill or spills.

B.

The tank foundation is to sit undisturbes earth or compacted fill, free of organic material.

C.

Tank foundation shall comply with the current edition of Uniform Building Code

requirements and all the applicable local codes and ordinances.

D.

Grout the legs of the tank to provide uniform load distribution of the legs on the

foundations.

E.

Tanks must be protected against seismic forces. Provide seismic constraints by tankmanufacturer.

F. Install concrete bases of dimensions indicated for fuel oil transfer pumps. Refer toDivision 3 Section "Cast-in-Place Concrete" and Division 15 Section "Basic Mechanical

Materials and Methods."

G. Examine areas and condition under which fuel oil systems materials and products are to beinstalled. Do not proceed with work until unsatisfactory conditions have been corrected in

manner acceptable to installer. Use sealants on metal piping threads which are chemically

resistant to fuel oil. Use only male threads of metal joints. Remove cutting and threadingburrs before assembling piping do not install defective piping or fittings. Do not use pipe

with threads which are chipped, stripped, or damaged .plug each pipe outlet including

valves with threaded plug or cap immediately after installation and retain until continuing

piping or equipment connections are completed. Pitch piping to drain to storage tanks.Changes in direction shall be made with fittings. Changes in pipe size shall be made with

reducing fittings bushings will not be permitted. Use dielectric unions where dissimilarmetals are joined together. The equipment connections to the piping shall be with the union

nipples, reducers, adaptors and shut off valve as required for the complete installation.

Comply with equipment manufacturers instructions and verify equipment operating

pressure range. Provide strainer filter and pressure regulator at connection to equipment

where indicated. Locate valves where easily accessible. All valve location must beprotected from possible injury. Provide a min of 600 mm of cover. Close open end of each

days work temporarily with wood blocks plastic end caps or threaded steel caps.

H. Install a 100 mm wide plastic warning tape 300 mm above all buried fuel oil lines and leak

detection and monitoring system conduits. Do not install piping in the same trench withother ferrous metals. Do all excavation and back filling required for installation of piping in

as per the details on the drawings. Backfill shall not be started until installation has beentested inspected and approved. Do permit water to drain into open trenches. After

installation and back fill clearly mark trenches so that installation will not be disturbed by


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subsequent construction. Under ground steel pipe for fuel oil piping shall be plastic coated

steel pipe. All defects or mars in coating shall be repaired .Tape wrap joints and fittings andcorrect all defects with protective coatings using appropriate primers. Surface must be clean

dry and free from rust scale grease and other irregular surfaces shall be a coal tar base

coating applied t a minimum dry film thickness of 8mm. Field applied tape shall bewrapped spirally with twolayer wrapping system over lapping the coating surface at least

75mm. Initially stretch the tape sufficiently to conform to the surface on which it is applied,

using one layer half lapped for tape 50 mm or less in width or one layer lapped at least 25

mm for 50 mm wide. A second layer lapped as above with a tension as it comes off the rollshall be applied and pressed to confirm to the shape of component.

3.4

PIPING APPLICATIONS

A.

General : Flanges, unions, transition and special fittings with pressure ratings same as or

higher than system pressure rating may be used in applications below, unless otherwise

indicated.

B.

Piping: Steel pipe to ASTM A53, type S grade B schedule 40, malleable iron fittings and

threaded joints.

C.

Piping DN 32 to DN 100: Steel pipe, malleable iron fittings, and threaded joints.

D. Buried Piping: Black Steel pipe to ASTM A53 schedule 40, Type S with containment and

leak detection system.

E.

Diesel Drain Piping : Same description as item D.

3.5

VALVE APPLICATIONS

A.

Shutoff Valves, NPS 2 (DN 50) and Smaller: Use oil shutoff valve.

1.

Option: Gate valves may be used.

B.

Gate and Check Valves, NPS 2 (DN 50) and Smaller: Use general-duty valves that comply

with MSS SP-80, Class 125, bronze body, suitable for fuel oil service, with "WOG"

indicated on body. Refer to Division 15 Section "Valves" for selection.

1.

Gate Valves: With solid wedge.

2.

Swing Check Valves: With bronze disc.

3.

Lift Check Valves: Vertical pattern; two-piece construction with bronze disc.

C.

Drain Valves: Use hose-end drain valves that comply with MSS SP-110, bronze ball valve

with outlet connection according to ASME B1.20.7 for garden-hose thread with cap. Referto Division 15 Section "Plumbing Specialties" for selection.

3.6

PIPING INSTALLATION


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A. Refer to Division 15 Section "Basic Mechanical Materials and Methods" for basic piping

installation requirements.

B.

Use eccentric reducer fittings to make reductions in pipe sizes. Install fittings with levelside down.

C.

Install strainer on inlet side of control valves, pressure-reducing valves, fuel oil pumps, andoil burner connections.

D. Install sediment traps at points where sediment or condensate may collect. Locate wherereadily accessible to permit cleaning and emptying. Do not install where condensate would

be subject to freezing.

1.

Construct sediment traps using tee fitting with bottom outlet plugged or capped. Useminimum-length nipple of 3 pipe diameters, but not less than 3 inches (75 mm) long,

and same size as connected pipe. Install with space between bottom of drip and floor

for removal of plug or cap.

E.

Install pressure gages on suction and discharge piping of each fuel oil pump set.

3.7

JOINT CONSTRUCTION

A.

Refer to Division 15 Section "Basic Mechanical Materials and Methods" for basic pipingjoint construction.

3.8 VALVE INSTALLATION

A.

Install valves in accessible locations, protected from possible damage.

B.

Install valves at branch connections to supply mains and at equipment.

C. Install drain valves at piping low points.

D.

Refer to Division 15 Section "Valves" for general installation requirements.

E.

Over fill prevention valve to fitted on the main / day storage tanks.

3.9

HANGER AND SUPPORT INSTALLATION

A.

Refer to Division 15 Section "Hangers and Supports" for pipe hanger and support devices.

3.10 CONNECTIONS

A.

Install piping adjacent to equipment to allow service and maintenance.

B.

Connect piping to equipment with oil shutoff valve and union. Install union between valve

and equipment.


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C. Ground equipment.

1. Tighten electrical connectors and terminals according to manufacturer's published

torque-tightening values. If manufacturer's torque values are not indicated, use thosespecified in UL 486A and UL 486B.

D.

Electrical Connections: Wiring is specified in Division 16 Sections.

3.11

FIELD QUALITY CONTROL

A.

Inspect and test fuel oil piping according to NFPA 30, "Testing" Paragraph and NFPA 31,

"Tests of Piping" Paragraph; and according to requirements of authorities havingjurisdiction.

B. Repair leaks and defects with new materials and retest system until satisfactory results areobtained.

C. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and

equipment.

D.

Report test results promptly and in writing to Engineer.

3.12

TESTING

A.

Inspect test and purge fuel oil systems in accordance with NFPA 30, 30A, and 31 the localcode officials and the State Fire Marshal.

All piping shall be tested with air at a minimum of 350 kpa for two (2) hours with out any

drop in pressure all piece of equipment including storage tanks not rated for this pressuremust be isolated from piping system when tested.

Repair or replace piping as required to eliminate leaks and retest to the satisfaction of the

Engineer.

Entire installation of coating under ground piping shall be tested using holiday detector andtesting procedures as described to the satisfaction of the Engineer.

3.13

DEMONSTRATION

A. Train Owner's maintenance personnel on procedures and schedules for starting andstopping, troubleshooting, servicing, and maintaining fuel oil pump sets.

B.

Review data in maintenance manuals. Refer to Division 1 Section "Contract Closeout."

C.

Review data in maintenance manuals. Refer to Division 1 Section "Operation and

Maintenance Data."

D. Schedule training with Owner, through Engineer, with at least seven days' advance notice.


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3.14

SAFETY

A. Provide fire extinguishers and spill cleanup kits to be stored at site. Coordinate locations

with the owner.

B.

Tanks should be protected from vandalism and accidental damage in accordance with all

the applicable codes.

3.15 ELECTRICAL

A.

Electrical service and fuel piping to the pumps unit should be installed in accordance with

the requirements of NEC and NFPA and local code requirements.

B. All electrical devices used with or located within twenty ( 20 ) feet of the tank should

conform to NFPA 70 hazardous locations. Electric conduits and wiring connected to the

tank shall be explosion proof and in strict accordance with NEC Class-1, Division 1 or localstandards whichever is stricter.

3.16

LEAK DETECTION SYSTEM

A.

Installation shall be in strict accordance with the manufacturers recommendations. At a

minimum, provide detectors space between tanks, each containment sump, each manhole

and other areas required due to low points etc.

END OF SECTION