installation of sprinkler systems · nfpa 13 - 2007 christian dubay, p.e. fire protection engineer...

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Changes to the Standard for the Installation of Sprinkler Systems

Larry Keeping, P.Eng., Corporate Engineer

Vipond Fire Protection, A Division of Vipond Inc.

Technical Committee Member,

Canadian Automatic Sprinkler Association

NFPA 13 - 2007

Christian Dubay, P.E.

Fire Protection Engineer

NFPA 13 – Staff Liaison

Kenneth E. Isman, P.E.

Fire Protection Engineer

NFSA V.P. of Engineering

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The Process:

• 740 Public Proposals• 410 Public Comments• 6 Technical Committees:

– Installation * 27 days of meetings, – Discharge * not including task group– Hanging & Bracing activities– Private Water Supply Piping – Residential– Correlating

• Notice of Intent to File a Motion (NITMAM)• Annual Meeting Membership Action • Council Hearings and Issuance of the Standard

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• Chapter 1 Administration• Chapter 2 Referenced Publications• Chapter 3 Definitions • Chapter 4 General Requirements• Chapter 5 Classification of Occupancies and Commodities• Chapter 6 System Components and Hardware• Chapter 7 System Requirements• Chapter 8 Installation Requirements• Chapter 9 Hanging, Bracing, and Restraint of System

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• Chapter 10 Underground Piping• Chapter 11 Design Approaches• Chapter 12 General Requirements for Storage• Chapter 13 Miscellaneous Storage• Chapter 14 Protection of Class I to Class IV Commodities

That Are Stored Palletized, Solid Piled, BinBoxes, or Shelf Storage

• Chapter 15 Protection of Plastic and Rubber CommoditiesThat Are Stored Palletized, Solid Piled, BinBoxes, or Shelf Storage

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• Chapter 16 Protection of Class I Through Class IV Commodities That Are Stored on Racks

• Chapter 17 Protection of Plastic and Rubber Commodities That Are Stored on Racks

• Chapter 18 Protection of Rubber Tire Storage• Chapter 19 Protection of Roll Paper• Chapter 20 Special Designs of Storage Protection

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• Chapter 21 Special Occupancy Requirements• Chapter 22 Plans and Calculations• Chapter 23 Water Supplies• Chapter 24 Systems Acceptance• Chapter 25 Marine Systems• Chapter 26 System Inspection, Testing, and Maintenance

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• Annex A Explanatory Material• Annex B Miscellaneous Topics• Annex C Explanation of Test Data and Procedures for

Rack Storage• Annex D Sprinkler System Information from the 1997

Edition of the Life Safety Code• Annex E Informational References

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Chapter 3

Definitions

Revised Definitions

• 3.3.5 Compartment.

• 3.3.15 Small Room

… enclosed by walls and a ceiling… openings not to exceed a width of 8 ft with lintels of 8 in.… single opening of 3 ft or less in width without a lintel

Chapter 3

Chapter 5

Classification of Occupancies and Commodities

• 5.2 * Light Hazard Occupancies

• A.5.2 Libraries, except large stack rooms

Chapter 5

• 5.2 * Light Hazard Occupancies

• A.5.2 Libraries, except large stack rooms

It is not the committee’s intent to automatically equate library bookshelves with ordinary hazard occupancies or with library stacks. Typical library bookshelves of approximately 8 ft in height, containing books stored vertically on end, held in place in close association with each other, with aisles wider than 30 in. can be considered to be light hazard occupancies. Similarly, library stack areas, which are more akin to shelf storage or record storage, as defined in NFPA 232, should be considered to be ordinary hazard occupancies.

Chapter 5

• 5.3 * Ordinary Hazard Occupancies

• 5.3.1 * Ordinary Hazard (Group 1)


… Dedicated and miscellaneous storage shall be protected shall be protected in accordance with Chapter 12 and 13 as applicable.

Chapter 5

• 5.3 * Ordinary Hazard Occupancies


• A.5.3.2

Exterior loading docks only utilized for loading and unloading should be classified as OH2. Where utilized for storage exterior loading docks and all interior loading docks should be protected based upon the actual occupancy, the materials handled on the dock, as if the materials were actually stored in that configuration.

Chapter 5

Commodity Adjustments for Storage on Plastic Pallets

• 5.6.2.2 Class I through IV commodities on unreinforced polypropylene or high-density polypropylene pallets.

– one class increase ie Class III to Class IV

Class IV to Group A Plastic– pallets marked with permanent symbol to designate type

• 5.6.2.3 Class I through IV commodities on reinforced polypropylene or high-density polypropylene pallets.

– two class increase except for Class IV ie Class II to Class IV

Class III & Class IV to Group A Plastic

Chapter 5

Chapter 6

System Components and Hardware

Spare Sprinklers

• 6.2.9.7 A list of the sprinklers installed in the property shall be posted in the sprinkler cabinet.

• 6.2.9.7.1 * The list shall include the following:

(1) Sprinkler Identification Number (SIN) if equipped; or themanufacturer, model, orifice, deflector type, thermalsensitivity and pressure rating

(2) General description (3) Quantity of each type to be contained in the cabinet(4) Issue or revision date of the list

Chapter 6

Spare Sprinklers

Chapter 6

Sprinklers Contained in this Cabinet

Sprinkler Identification,

SIN

General Description

Temperature Rating, °F

Sprinkler Quantity

Maintained

TY9128

Extended Coverage,

UprightK = 25.2,

155 6

R3615

Recessed Chrome PendentK = 5.6

155 6

Issued: 2006-11-16 Revised:

Updated Welding Requirements

• ASME Section IX Welding and Brazing Qualifications added,or other applicable qualification standard, as required by AHJ

• Dimensional requirements, for acceptable weld characteristics

– minimum weld throat sizes– set up for circumferential butt joints– slip-on flanges– tabs for longitudinal earthquake bracing

Chapter 6

Updated Welding Requirements

• Welders “mark” on each piece of pipe

• Annex illustrations of types of welds

• Annex stress calculations to specify minimum weld sizes

Chapter 6

Control Valves

• 6. 7.4.3.1 * Systems that have more than one control valve that must be closed to work on a system or space shall have a sign referring to existence and location of other valves.

Chapter 6

Chapter 7

System Requirements

Dry Pipe Systems

• 7.2 * Dry Pipe Systems

• 7.2.2 Sprinklers

(5) Pendent sprinklers and sidewall sprinklers, installedwhere the sprinklers and the branch line piping are in anarea maintained at or above 40°F (4°C), the water supplyis potable, and the piping for the dry pipe system iscopper or CPVC specifically listed for dry pipeapplications

ie without return bends

• Similar for preaction systems

Chapter 7

Dry Pipe Systems

• 7.2.3 * Size of Systems

5 options for the size of dry pipe systems:

– capable of tripping and discharging from the 1” trip test connection within 60 sec.

– system volume < 500 gal. with no specific delivery time– system volume < 750 gal. & fitted with a Q.O.D. with no

specific delivery time– system delivery time calculated using a listed program– system shown to discharge from a manifold, in accordance

with the criteria from the water delivery table

• Exceptions for residential occupancies

Chapter 7

Table 7.2.3.6.1 Dry System Water Delivery

Number of MostRemote Sprinklers Maximum Time of

Hazard Initially Open Water Delivery

Residential 1 15 secondsLight 1 60 secondsOrdinary 1 2 50 secondsOrdinary 2 2 50 secondsExtra 1 4 45 secondsExtra 2 4 45 secondsHigh Piled 4 40 seconds

• Table moved from Chapter 11 to Chapter 7

Chapter 7

Dry Pipe Systems

Dry Pipe SystemManifold

Chapter 7

Figure A.7.2.3.7 Example Manifold Arrangement (Four Sprinklers).

Dry Pipe Systems

• 7.2.3 * Size of Systems

3 options for the size of dry pipe systems protecting residential occupancies:


– system delivery time calculated using a listed program– system shown to discharge from a manifold, in accordance

with the criteria from the water delivery table

ie The 500 gal. and 750 gal. options are not applicablefor residential occupancies

Chapter 7

Preaction Systems

• 7.3.2.3 Size of Systems – Double Interlock Preaction Systems

3 options for the size of double interlock systems


– system delivery time calculated using a listed program– system shown to discharge from a manifold, in accordance with

the criteria from the water delivery table

• The previous 500 gal. and 750 gal. options were eliminated

Chapter 7

Preaction Systems

• 7.3.1.6 Location and Spacing of Releasing Devices

• 7.3.1.6.1 Spacing of releasing devices … shall be in accordance with their listing and manufacturer’s specifications.

• 7.3.1.6.2 The release system shall serve all areas that the preaction system protects.

• 7.3.1.6.3 Where thermal activation is utilized, the activationtemperature of the release system shall be lower than the activation temperature of the sprinkler.

Chapter 7

Preaction Systems

• 7.3.2.6 System Configuration. Preaction systems of the … {double interlock} … type … and all preaction systems protecting storage, excluding miscellaneous storage, shall not be gridded.

Chapter 7

Antifreeze Systems

• 7.6.1.3 Where pendent sprinklers are utilized, the water shall be drained from the entire system after hydrostatic testing with water.

• 7.6.1.3.1 The requirements of 7.6.1.3 shall not apply where the system is hydrostatically tested with properly mixed antifreeze solution.

Chapter 7

Antifreeze Systems

• 7.6.1.4 Where antifreeze systems are remote from the system riser, a placard shall be mounted on the system riser that indicates the number and location of all remote antifreeze systems supplied by that riser.

• 7.6.1.5 A placard shall be placed on the antifreeze system main valve that indicates the manufacturer type and brand of the antifreeze solution, the concentration of the antifreeze solution used, and the volume of the antifreeze solution used in the system.

Chapter 7

Antifreeze Systems

• 7.6.2.6 The concentration of antifreeze solutions shall be limited to the minimum necessary for the anticipated minimum temperature.

• Deleted 70% through 90% concentration curves.

• 100% curves only provided for densities when calculating solutions.

• 7.6.3.5 * Systems larger than 40 gal (151 L) shall have a drain/test connection installed at the most remote portion of the system.

Chapter 7

Refrigerated Spaces

• 7.9.2.8 Fire Detection for Preaction Release.

• 7.9.2.8.1 Detectors for Preaction Systems.

• 7.9.2.8.2 Detector Location at Ceiling.

• 7.9.2.8.3 Detector Location in Racks.

• 7.9.2.8.4 Single Detection System for Ceiling and In-Rack Sprinklers.

Chapter 7

Chapter 8

Installation Requirements

• 8.1 * Basic Requirements

• 8.1.1 * The requirements for spacing, location, and positioning of sprinklers shall be based on the following principles.

• A.8.1.1

… Based upon experience and testing, sprinklers have been found to be effective and necessary at heights in excess of 50 ft. For a building to meet the intended level of protection afforded by NFPA 13, sprinklers must not be omitted from such high ceiling spaces ...

Chapter 8

• 8.1 * Basic Requirements

• 8.1.1 * The requirements for spacing, location, and positioning of sprinklers shall be based on the following principles.

(5) Furniture, such as portable wardrobe units, cabinets, trophy cases and similar features not intended foroccupancy, do not require sprinklers to be installed inthem. This type of feature shall be permitted to beattached to the finished structure.

• 8.5.3.2.3 The distance from the wall to the sprinkler shall bemeasured to the wall behind furniture, such as: wardrobes, cabinets, and trophy cases.

Chapter 8

Wardrobe Units, Cabinets and Trophy Cases

Chapter 8

• 8.2 System Protection Area Limitations.

• 8.2.4 Multiple buildings attached by canopies, covered breezeways, common roofs, or a common wall (s) shall be permitted to be supplied by a single fire sprinkler riser. The maximum system size shall comply with section 8.2.1.

Chapter 8

• 8.2.5 * Detached Buildings.

• 8.2.5.1 Unless the requirements of Section 8.2.5.2 apply, detached buildings, regardless of separation distance, that do not meet the criteria of section 8.2.4 shall be provided with separate fire sprinkler systems.

• 8.2.5.2 When acceptable to the authority having jurisdiction detached structures shall be permitted to be supplied by the fire sprinkler system of an adjacent building.

Chapter 8

• 8.3.1.5 Protective Caps and Straps.

• 8.3.1.5.1 * Protective caps and straps shall be removed using means that are in accordance with the manufacturer's installation instructions.

• 8.3.1.5.2 * Protective caps and straps shall be removed from all sprinklers prior to the time when the sprinkler system is placed in service.

• 8.3.1.5.3 Protective caps and straps on all upright sprinklers or on any sprinklers installed more than 10 ft (3 m) above the floor shall be permitted to be removed from sprinklers immediately following their installation.

Chapter 8

Sprinklers with Protective Caps and Straps

Chapter 8

• 8.3.2 Temperature Ratings.

• 8.3.2.5 The following practices shall be observed ...

(5) Sprinklers in walk-in type coolers and freezers with automatic defrosting shall be of the intermediate-temperature classification or higher.

Chapter 8

• 8.4.10 Dry Sprinklers.

• 8.4.10.1 Where dry sprinklers are connected to wet pipe sprinkler systems protecting areas subject to freezing temperatures, sprinklers of sufficient length shall be used to avoid freezing of the water filled pipes due to conduction.

• 8.4.10.2 * Where dry sprinklers are connected to wet pipe sprinkler systems protecting insulated freezer structures, the clearance space around the sprinkler barrel shall be sealed.

Chapter 8

Dry Sprinklers in Freezers

Chapter 8

Figure A.8.4.10.2 (b) Dry Sprinkler Seal Arrangement

– Seal Within Freezer Structure.

Chapter 8

• 8.5.3.2 Maximum Distance Between Sprinklers.

• 8.5.3.2.4 The distance from the wall to the sprinkler shall bemeasured to the wall when sprinklers are spaced near windows and no additional floor space is created.

Floor

Window

CeilingSprinkler

Distance

Floor

Window

CeilingSprinkler

Distance

Chapter 8

• 8.5.4 Deflector Position.

• 8.5.4.1 * Distance Below Ceilings.

• 8.5.4.1.2 For corrugated metal deck roofs up to 3 in. (76 mm) in depth, the distance shall be measured to the sprinkler from the bottom of the deck. For deeper decks, the distance shall be measured to the highest point on the deck.

<3 inches

Deflector distance

>3 inches

Deflector distance

Chapter 8

• 8.6.4.1.4 Sprinklers Under a Roof or Ceiling in Combustible Concealed Spaces With Wood Joist or Wood Truss Construction with Members 3 ft (0.91 m) or Less on Center and a Slope Having a Pitch of 4 in 12 or Greater.

Distance from Sprinklers to Side of Obstruction (A)

Max. Distance of Deflector Above Obstruction (B)

5 ft. to less than 5 ft. 6 in. 18

5 ft. 6 in. to less than 6 ft. 20


6 ft. 6 in. to less than 7 ft. 30


Chapter 8

Ceiling

A

B

Elevation View

Obstruction

• Table 8.6.5.1.2 “The Beam Rule”

Extended to 7’- 6” for standard spray sprinklers

• Similar extension to 10’- 0” for EC

Chapter 8

Privacy Curtains

Ceiling or Roof

A

B

Floor

Privacy Curtain

22 in. min.

Mesh 70% Open

Sidewall Sprinklers

• 8.7.4.1.3 Lintels and Soffits.

• 8.7.4.1.3.2

• Similar for EC and Residential sprinklers

Chapter 8

Wall

Soffit

Ceiling

Top of Sprinkler Deflector

4 in. max.

Allowable Deflector to Ceiling Distance

8 in. max.

Chapter 8

Wall

Soffit

Ceiling

Top of Sprinkler Deflector

� Max. Deflector to Ceiling Distance

� Min. Deflector to Ceiling Distance

Sidewall Sprinklers

• 8.7.4.1.3 Lintels and Soffits.

• 8.7.4.1.3.3

• Similar for EC sprinklers

Chapter 8

Sidewall Sprinklers

• 8.7.3.1.7 Where sidewall standard spray sprinklers are installed to protect areas below overhead doors within ordinary hazard spaces or rooms, protection area and maximum sprinkler spacing for light hazard … shall be permitted under the overhead doors.

Note: The ordinary hazard density would still haveto be provided from the sprinklers installed to the

light hazard spacing criteria

Chapter 8

Wall

Cabinet

Ceiling

� 12 in.

Soffit

EC Sidewall Sprinklers

• 8.9.4.1.4 Soffits and Cabinets in Residential Areas/ Occupancies.

• 8.9.4.1.4.2

• Similar for Residential sprinklers

Chapter 8

Wall

Cabinet

Ceiling

� 12 in.

� 3 ft.


• 8.9.4.1.4.3


• Annex Notes:

– Developed from NFSA tests– Pendent sprinklers better than

sidewalls for the protection of kitchens

– It is not the intent to require sprinklers under kitchen cabinets

Chapter 8

Sidewall sprinkler on wall

A

B

Elevation View

Obstruction


• 8.9.5.1.4 Continuous obstructions projecting from the same wall as the one on which the sidewall sprinkler is mounted shall be in accordance with Table 8.9.5.1.4 and Figure 8.9.5.1.4.


ESFR Sprinklers

• 8.12.2.3 Minimum Protection Area of Coverage. The minimum allowable protection area of coverage for a sprinkler (As) shall not be less than 64 ft2 (6 m2).

Note: The calculation areas for ESFR sprinklers arestill required to be a minimum of 960 ft2

Chapter 8

Chapter 8

Fan Blades

Plan View of Fan

Motor Housing

Fan Blades

Residential Sprinklers

• 8.10.7.2.1.7 * Sprinklers shall be permitted to be placed without regard to the blades of a ceiling fan, provided the plan view of the fan is at least 50 percent open.

• The 4 Times Rules applies only to the motor housing

Chapter 8

• 8.15.1.2 * Concealed Spaces Not Requiring Sprinkler Protection.

• 8.15.1.2.1 *

• A.8.15.1.2.1 Minor quantities of combustible materials such as but not limited to: cabling, nonmetallic plumbing piping, non-structural wood, etc... can be present in concealed spaces constructed of limited or noncombustible materials but should not typically be viewed as requiring sprinklers ...

Chapter 8

• 8.15.1.2 * Concealed Spaces Not Requiring Sprinkler Protection.

• A.8.15.1.2.1 (continued)

... For example, it is not the intent of this section to requiresprinklers, which would not otherwise be required, in the interstitial space of a typical office building solely due to the presence of the usual amount of cabling within the space. The threshold value at which sprinklers become necessary in the concealed space is not defined.

Chapter 8

• 8.15.4 * Vertical Openings.

• 8.15.4.1 * General. Unless the requirements of 8.15.4.4 are met, where moving stairways, staircases, or similar openings are unenclosed and where sprinkler protection is serving as the alternative to enclosure of the vertical opening, the floor openings involved shall be protected by closely spaces sprinklers in combination with draft stops …

• A.8.15.4.1 It is the intent of this section to require closelyspaced sprinklers and draft stops to openings where protection or enclosure is required by building and life safety codes.

Chapter 8

• 8.15.4 * Vertical Openings.

• Closely spaced sprinklers and draft stops are not required when protection is not required by building and life safety codes.

Chapter 8

• 8.15.7 * Exterior Roofs, Canopies, or Porte-Cochere.

• 8.15.7.2 * Sprinklers shall be permitted to be omitted where … constructed with materials that are noncombustible, limited-combustible, or fire retardant treated wood as defined in NFPA 703 …

• 8.15.7.3 Sprinklers shall be permitted to be omitted from below … provided the exposed finish material … is noncombustible, limited-combustible, or fire retardant treated wood … and … contains only sprinklered concealed spaces …

Chapter 8

Sprinklered Concealed Space of Combustible Construction

Noncombustible,Limited Combustible or Fire Retardant Wood Exposed Finish Materials

Sprinklers Not Required Below


Porte-Cochere should be sprinklered due to the occupancy above

Porte-Cochere need not be sprinklered

Chapter 8


• A.8.15.7.2 Entirely constructed of noncombustible, limited combustible materials or fire retardant treated lumber

Chapter 8

Drainage

• 8.16.2.3.2 In preaction systems, branch lines shall be pitched at least ½ in. per 10 ft (4 mm/m) and mains shall be pitched at least ¼ in. per 10 ft (2 mm/m).

• 8.16.2.5.3.1 Auxiliary drains located in areas subject to freezing shall be readily accessible.

• 8.16.2.5.3.6 Systems with low point drains shall have a sign at the dry pipe or preaction valve indicating the number of low point drains and the location of each individual drain.

Chapter 8

Protection of Piping Against Freezing

• 8.16.4.1.4 Where listed heat tracing systems are used they shall be supervised.

• 8.16.4.1.5 Where listed heat tracing is utilized for branch lines, it shall be specifically listed for use on branch lines.

Note: As yet there are no heat tracing systems that are specifically listed for use on branch lines

Chapter 8

Protection of Piping Against Corrosion

• 8.16.4.2.2 Where water supplies are known to have unusual corrosive properties, piping shall have a corrosion resistance ratio (CRR) of 1.0 or more and the system shall be treated in accordance with 23.1.5.

Chapter 8

• 8.17.4.4 Preaction Systems.

• 8.17.4.4.3 For double interlock preaction systems in excess of 750 gal (2840 L), a trip test connection not less than 1 in. (25 mm) … shall be installed.

• 8.17.4.4.4 For double interlock preaction systems in excess of 750 gal (2840 L), the trip test connection shall be located on the end of the most distant sprinkler pipe in the upper story ...

Chapter 8

• 8.17.5 Hose Connections.

• 8.17.5.1 Small (1½ in.) (38 mm) Hose Connections.

• 8.17.5.1.1 * Where required small (1½ in.) hose connections shall be installed. Valves shall be available to reach all portions of the area with 100 ft (30.5 m) of hose plus 30 ft (9.1 m) of hose stream distance.

Chapter 8

• 8.17.5 Hose Connections.

• 8.17.5.1 Small (1½ in.) (38 mm) Hose Connections.

• 8.17.5.1.2 Where the building is protected throughout by an approved automatic sprinkler system, the presence of 1½ in. (40 mm) hose lines for use by building occupants shall not be required, subject to the approval of the authority having jurisdiction.

• A.12.2 AHJ Options:

- no hose stations - hose stations with no hose lines or nozzles- hose stations with hose lines and nozzles

Figure A.8.17.5.2.2 (a) Acceptable Piping Arrangement forCombined Sprinkler / Standpipe System. [14:Figure A.7.10.1.3.1 (a)].

Chapter 8

Chapter 11

Design Approaches

• Chapter 11 reformatted to allow the reading of it to follow a more logical flow and clarity:

• 11.2 Occupancy Hazard Fire Control Approach.

– 11.2.1 General

– 11.2.2 Water Demand Requirements - Pipe Schedule Method

– 11.2.3 Water Demand Requirements - Hydraulic Calculation

Density/Area MethodRoom Design MethodSpecial Design Areas - chutes, corridors, ducts

Chapter 11

• 11.3 Special Design Approaches.

– 11.3.1 Residential Sprinklers

– 11.3.2 Exposure Protection

– 11.2.3 Water Curtains

– 11.2.4 Sprinklers Under a Roof or Ceiling in Combustible Concealed Spaces With Wood Joist or Wood Truss Construction with Members 3 ft (0.91 m) or Less on Center and a Slope Having a Pitch of 4 in 12 or Greater

Chapter 11

• 11.1 General. The requirements of section 11.1 shall apply to all sprinkler systems unless modified by a specific section of Chapter 11 or Chapter 12.

ie For design for storage occupancies you start in Chapter 11and then go to Chapter 12 and the other storage chapters.

Chapter 11

• 11.2.3.3 Restrictions.

(3) * … for buildings having unsprinklered combustible concealed spaces … the minimum are of sprinkleroperation for that portion of the building shall be 3000 ft2 (279 m2). The design area of 3000 ft2 (279 m2)shall be applied only to the sprinkler system or portionsof the sprinkler system that are adjacent to thequalifying combustible concealed space.

Chapter 11

• 11.2.3.3 Room Design Method.

• 11.2.3.3.7 Where the area under consideration is a corridor protected by a single row of sprinklers … the design area shall include all sprinklers in the corridor to a maximum of five, or when extended coverage sprinklers are installed, all sprinklers within 75 linear feet (22.9 linear meters) of the corridor.

Chapter 11

Reliable DH80“Deck / Hall” Sprinkler

Coverage: 28 ft along the wall by14 ft across the corridor

• 11.3.1 Residential Sprinklers.

• 11.3.1.1 * The design area shall be the area that includes thefour adjacent sprinklers that produce the greatest hydraulic demand.

Chapter 11

Chapter 12

General Requirements for Storage

General

• This new chapter contains all of the General requirements that apply to all storage occupancies, with the exception of Miscellaneous Storage.

ie Chapters 14 through 20 but not Chapter 13.

• For clarity a number of the requirements and restrictions from Chapter 11 have been copied into Chapter 12.

Chapter 12

• 12.1.3 Building and Storage Height.

• 12.1.3.3 The sprinkler system design shall be based on the storage height and clearance to ceiling that routinely or periodically exist in the building and create the greatest water demand. Where storage is placed above doors, the storage height shall be calculated from the base of storage above the door.

Chapter 12

Chapter 12

• 12.1.3.4 * Ceiling Height.

Ceiling

Floor

WarehouseArea StorageHeight

Overhead Door

Loading Dock Area StorageHeight

Storage Height above O/H Door


• 12.1.3.4.1 For ceiling heights that exceed 30 ft (9.14 m), where the distance between the ceiling height and top of storage exceeds 20 ft (6.1 m), the protection shall be provided for the storage height that would result in a 20 ft (6.1 m) distance between the ceiling height and top of storage.

Chapter 12

Chapter 12


Ceiling

Floor

15 ft StorageHeight, Actual

40 ft Building Height

25 ft Clearanceto Ceiling, Actual

20 ft StorageHeight, Design

20 ft Clearanceto Ceiling, Design

Chapter 13

Miscellaneous Storage

Chapter 13

Protection of Miscellaneous Storage and Class I, II, III, and IVCommodities stored 12 ft (3.7 m) or less in height

• Problems created in NFPA 13-2002 when the requirements were located in Chapter 12 corrected with the advent of a separate chapter.

– References to OH and EH occupancies were deleted, so theadjustments and modifiers in Chapter 11 were lost

ie - OH design area reductions for Q/R sprks. - 20% area reduction for EH with high temp. sprks.

– Hose station requirements

– Water supply durations

Chapter 13

• 13.1 Miscellaneous Storage up to 12 ft (3.7 m) in Height.

• 13.1.1 Small hose connections shall not be required for the protection of miscellaneous storage.

Note: Similarly not be required for Class I, II, III, and IV commodities to 12 ft (3.7 m) or less in height.

Chapter 13

• 13.1 Miscellaneous Storage up to 12 ft (3.7 m) in Height.

• 13.2 Design Basis

• 13.2.2 Design criteria and modifiers as permitted by the density/ area method of Chapter 11 for Ordinary Hazard Group 1, Ordinary Hazard Group 2, Extra Hazard Group 1 and Extra Hazard Group 2 Occupancies shall be applicable for the protection of miscellaneous storage and commodity Class I through Class IV storage 12 ft (3.7 m) or less in height…

Chapter 13

Chapter 13

Chapters 14 to 20

Chapters for Specific Types of Storage

Chapter 14 - 20

Storage Chapters

• Chapter 14 Protection of Class I to Class IV CommoditiesThat Are Stored Palletized, Solid Piled, BinBoxes, or Shelf Storage

– Previously covered in 12.2.1 and 12.2.2 in NFPA 13-2002

• Chapter 15 Protection of Plastic and Rubber Commodities That Are Stored Palletized, Solid Piled, BinBoxes, or Shelf Storage

– Previously covered in 12.2.1 and 12.2.3 in NFPA 13-2002

Chapter 14 - 20

Storage Chapters

• Chapter 16 Protection of Class I Through Class IV Commodities That Are Stored on Racks

– Previously covered in 12.3.1 and 12.3.2 and 12.3.4 inNFPA 13-2002

• Chapter 17 Protection of Plastic and Rubber Commodities That Are Stored on Racks

– Previously covered in 12.3.1 and 12.3.3 and 12.3.5 inNFPA 13-2002

Chapter 14 - 20

Storage Chapters

• Chapter 18 Protection of Rubber Tire Storage

– Previously covered in 12.4 in NFPA 13-2002

• Chapter 19 Protection of Roll Paper

– Previously covered in 12.6 in NFPA 13-2002

• Chapter 20 Special Designs of Storage Protection

– Previously covered in 12.7 and 12.5 in NFPA 13-2002- Automotive Components- Storage and Display in Retail Occupancies- Baled Cotton Storage

Chapter 14 - 20

Storage Revisions

• Minor typos, inconsistencies and omissions rectified throughout

• Directed to Chapter 13 for the storage of Class I to IV commodities to a height of 12 ft or less and for the storage plastic and rubber commodities to a height of 5 ft or less

• Requirements for high-expansion foam coordinated

• Design of preaction systems for large drop sprinklers to be classified as dry pipe systems

ie - not just double interlock systems

Chapter 14 - 20

Storage Revisions

• Shelf storage of plastic and rubber commodities limited to 15 ft max. (the same as Class I to IV)

• Table for general storage of plastic and rubber commodities altered to remove inconsistencies

Chapter 14 - 20

Chapter 14 - 20

Storage Revisions

• New text to allow the ceiling sprinklers only design criteria for rack storage of plastic and rubber commodities to be applied to general storage situations

ie - General storage based on older K - 5.6 and K - 8.0 testsRack storage based on newer K - 11.2 and larger sprks.

Chapter 14 - 20

Chapter 14 - 20

Chapter 14 - 20

Chapter 14 - 20

Storage Revisions

• Criteria for Large Drop and Specific Application Control Mode Sprinklers updated

– Results of recent K - 16.8 testing incorporated

• Tables for ESFR protection corrected and updated

– Results of recent testing incorporated– Typos corrected– K - 22.4 ESFR sprinklers added– K - 11.2 ESFR sprinklers deleted (no longer manufactured)

Chapter 14 - 20

Chapter 21

Special Occupancy Requirements

Chapter 21

• Formerly Chapter 13 in NFPA 13-2002

• Contains all of the requirements for the special occupancies that are extracted from other NFPA standards

• Additional requirements extracted from:

– NFPA 37 Stationary Combustion Engines and Gas Turbines– NFPA 86 Ovens and Gas Furnaces– NFPA 101 Life Safety Code (updated & moved from Annex D)– NFPA 140 Soundstages and Approved Production Facilities

Chapter 22

Plans and Calculations

Chapters 22


• 22.3.5 * Computer Generated Hydraulic Reports.

• New requirement for the material reported in hydraulic calculation reports generated by a computer

• Effective January 1, 2008:

– Summary Sheet– Graph Sheet– Supply Analysis– Node Analysis– Detailed Worksheets

Chapters 22

• 22.4.2.1.3 For antifreeze solutions greater than 40 gallons insize, the friction loss shall also be calculated using the Darcy-Weisbach formula:

�P = 0.000216 ƒ ��Q2

d5

• 22.4.4.5.1 * …. Using a Moody diagram, �- factors that are representative of aged pipe, and adjusted K-factors for fluid properties.

• Suggested �- factor for aged pipe

Chapters 22

Chapters 22

Table 22.4.4.5.1 Suggested �-Factor for Aged Pipe

Hazen-Williams �-FactorPipe C Factor (in.)

Steel (new) 143 0.0018Steel 120 0.004Steel 100 0.015Copper 150 0.000084Plastic 150 0.000084

Chapter 23

Water Supplies

Chapters 23


• 23.1.5.2 Water supplies and environmental conditions shall be evaluated for conditions that contribute to unusual corrosive properties. Where conditions are found that contribute to unusual corrosive properties, the owner(s) shall notify the sprinkler system installer and a plan shall be developed to treat the system using one of the following methods:

(1) Install a water pipe that is corrosion resistant.(2) Treat all water that enters the system using an approved

corrosion inhibitor.(3) Implement an approved plan for monitoring the interior

conditions of the pipe at established intervals and locations.

Chapters 23

Chapter 24

Systems Acceptance

Chapters 24


• 24.6.1 * The installing contractor shall provide a general information sign used to determine system design basis and information relevant to the Inspection, Testing and Maintenance requirements required by NFPA 25…

… Such signs shall be placed at each system control riser, antifreeze loop and auxiliary system control valve.

Chapters 24

• 24.6.2 The sign shall include the following information:

1) Name and location of the facility protected.2) Presence of high-piled and/or rack storage3) Maximum height of storage planned.4) Aisle width planned.5) Commodity classification6) Encapsulation of pallet loads7) Presence of solid shelving8) Flow test data9) Presence of flammable/combustible liquids

Chapters 24

• 24.6.2 The sign shall include the following information:

10) Presence of hazardous materials11) Presence of other special storage12) Location of auxiliary drains and low point drains13) Original results of main drain flow test14) Name of installing contractor or designer15) Indicate presence and location of antifreeze or other

auxiliary systems

Chapters 24SPRINKLER SYSTEM – GENERAL INFORMATION

for___________________________________________________________________________________________________________________________________________________

High-piled storage � Yes � No Date: __________________

Rack storage: � Yes � No Flow Test Data:Commodity class: ___________ Static: ________ psi Max. storage ht. ____________ ft. Residual: ________ psiAisle Width (min)____________ ft. Flow: ________ gpm

Encapsulation � Yes � No Pitot: ________ psi

Solid shelving: � Yes � No Date: ____________________Flammable/ Location: _________________

combustible liquids � Yes � No _________________________

Other storage: � Yes � No_________________________ Location of aux/low point drains:

Hazardous materials: � Yes � No _________________________

Idle pallets: � Yes � No _________________________

Antifreeze systems: � Yes � No _________________________ Location: ________________ Original main drain test results:

Dry or aux systems � Yes � No Static: ________ psiLocation: __________________ Residual: ________ psi

Name of contractor or designer:____________________________________________________________Address: ___________________________________________________Phone: ___________________________________________________

Figure A.24.6 Sprinkler System General Information.

Annex A

Explanatory Material

Annex A

• In conjunction with all of the changes to the standard, many revisions and additions to the text and the illustrations have been added to the Annex, to further aid in understanding and applying the standard

2007 Edition of NFPA 13

Questions?

installation of sprinkler systems · nfpa 13 - 2007 christian dubay, p.e. fire protection engineer...

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