Second Correlating Revision No. 8-NFPA [ New Section after ] Supplemental Information. Submitter Information Verification

Transcription

1 Second Correlating Revision No. 8-NFPA [ New Section after ] 1.6.3* Some dimensions used in this standard are exact and some are not. Nominal dimension are often used, such as the dimensions used for pipe sizes. The metric equivalent shown in this standard might not be an exact conversion to the SI unit, but the nominal metric equivalent is typically used or a reasonably equivalent value or approximate conversion is used. It shall be acceptable to use the exact conversion or the conversions stated in the standard, even though they might not be exact. Supplemental Information File Name SCR8_ANNEX_TEXT.docx Description Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Sat Dec 13 19:19:59 EST 2014 Committee Statement Committee Statement: The terms hard and soft in reference to conversions are not technical and are ambiguous. Using the terms exact and approximate are more appropriate in a standard. Committee Comment No. 57-NFPA [New Section after 1.6.2] of /31/ :33 AM

2 A Formatted: Number of columns: 2 Some dimensions used in this standard require a tight precision and others do not. For example, when performing hydraulic calculations more precision is required than when specifying a nominal dimension. An example is pipe sizes, where we typically refer to a nominal diameter rather than the exact diameter. The metric equivalents also have a set of generally accepted nominal measurements, and they are not a precise conversion from the English Unit nominal dimension. Throughout the standard the generally accepted nominal pipe sizes have been used. For example 1 in. pipe = 25 mm, 11 4 in. pipe = 32 mm, 11 2 in. pipe = 40 mm, and so forth. In other cases rounding is used, and the number of significant digits taken into account. For example, a 30 ft ceiling would be m. This implies a level of precision that is higher than used for the original dimension, and a conversion to 9.1 m or even 9 m is more appropriate. Another example is that in the standard, 1 in. has been converted to 25 mm and not 25.4 mm, 2 in. to 50 mm, 6 in. to 150 mm, and so forth. Finally, locally available material can have different characteristics in countries that use metric units than are typically found in the U.S. Examples are things like standard door or window sizes, rack dimensions, and so forth. In these cases a soft an approximate conversion can also be used. Where softapproximate conversions have been used, it is acceptable for a designer or installer to use an exact or hard" conversion rather than the soft approximate conversion used in the standard.

3 of /31/ :33 AM Second Correlating Revision No. 24-NFPA [ Section No ]

4 2.3.6 AWWA Publications. American Water Works Association, 6666 West Quincy Avenue, Denver, CO AWWA C104, Cement Mortar Lining for Ductile Iron Pipe and Fittings for Water, AWWA C105, Polyethylene Encasement for Ductile Iron Pipe Systems, AWWA C110, Ductile Iron and Gray Iron Fittings, 3-in. Through 48-in. (76 mm Through 1219 mm), for Water and Other Liquids, AWWA C111, Rubber Gasket Joints for Ductile Iron Pressure Pipe and Fittings, AWWA C115, Flanged Ductile Iron Pipe with Ductile Iron or Gray Iron Threaded Flanges, AWWA C116, Protective Fusion-Bonded Epoxy Coatings Internal and External Surface Ductile-Iron/Gray-Iron Fittings, AWWA C150, Thickness Design of Ductile Iron Pipe, AWWA C151, Ductile Iron Pipe, Centrifugally Cast for Water, AWWA C153, Ductile-Iron Compact Fittings for Water Service, AWWA C200, Steel Water Pipe 6 in. (150 mm) and Larger, AWWA C203, Coal-Tar Protective Coatings and Linings for Steel Water Pipelines Enamel and Tape Hot Applied, AWWA C205, Cement-Mortar Protective Lining and Coating for Steel Water Pipe 4 in. (100 mm) and Larger Shop Applied, AWWA C206, Field Welding of Steel Water Pipe, AWWA C207, Steel Pipe Flanges for Waterworks Service Sizes 4 in. Through 144 in. (100 mm Through 3,600 mm), AWWA C208, Dimensions for Fabricated Steel Water Pipe Fittings, AWWA C300, Reinforced Concrete Pressure Pipe, Steel-Cylinder Type, for Water and Other Liquids, AWWA C301, Prestressed Concrete Pressure Pipe, Steel-Cylinder Type, for Water and Other Liquids, AWWA C302, Reinforced Concrete Pressure Pipe, Non-Cylinder Type, for Water and Other Liquids, AWWA C303, Reinforced Concrete Pressure Pipe, Steel-Cylinder Type, Pretensioned, for Water and Other Liquids, AWWA C400, Standard for Asbestos-Cement Distribution Pipe, 4 in. Through 16 in. (100 mm Through 400 mm), for Water and Other Liquids, AWWA C401, Standard Practice for the Selection of Asbestos-Cement Water Pipe, 4 in. Through 16 in. (100 mm Through 400 mm), AWWA C600, Standard for the Installation of Ductile Iron Water Mains and Their Appurtenances, AWWA C602, Cement-Mortar Lining of Water Pipe Lines 4 in. (100 mm) and Larger in Place, AWWA C603, Standard for the Installation of Asbestos-Cement Water Pipe, AWWA C900, Polyvinyl Chloride (PVC) Pressure Pipe, 4 in. Through 12 in. (100 mm Through 300 mm), for Water and Other Liquids, AWWA C906, Polyethylene (PE) Pressure Pipe and Fittings, 4 in. (100 mm) Th. 63 in (1,575 mm), for Water Distribution and Transportation, AWWA M11, A Guide for Steel Pipe Design and Installation, 3rd edition, of /31/ :33 AM

5 of /31/ :33 AM Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Tue Dec 16 07:51:36 EST 2014 Committee Statement Committee Statement: This standard is no longer referenced by NFPA 13 or NFPA 24 and therefore should be deleted from the standard.

6 Second Correlating Revision No. 23-NFPA [ New Section after ] Prying Factor. A factor based on fitting geometry that results in an increase in service tension load due to the effects of prying between the upper seismic brace attachment fitting and the structure. Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Tue Dec 16 07:49:10 EST 2014 Committee Statement Committee Statement: This definition must be deleted since the term no longer is used in the standard. This term was added through SR 15 which failed technical committee ballot, therefore for correlation purposes, this definition must be deleted. Second Revision No. 14-NFPA [New Section after ] of /31/ :33 AM

7 of /31/ :33 AM Second Correlating Revision No. 21-NFPA [ Section No ] Global SR-56

8 of /31/ :33 AM

9 A listed 1 2 in. (12 mm) relief valve shall be permitted in lieu of the expansion chamber required in , and as illustrated in Figure , provided the antifreeze system volume does not exceed 40 gal (151 L). Figure Arrangement of Supply Piping with Relief Valve and Backflow Device. of /31/ :33 AM

10 of /31/ :33 AM Supplemental Information File Name SCR_21.docx Description Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip:

11 0 of /31/ :33 AM Submittal Date: Mon Dec 15 09:50:07 EST 2014 Committee Statement Committee Statement: In the proposed figure, the check valve arrow is pointed in the wrong direction (editorial correction). Second Revision No. 28-NFPA [Section No ]

12 Please reverse the direction of the arrow in the check valve

13 1 of /31/ :33 AM Second Correlating Revision No. 22-NFPA [ Section No ] * Minimum Distance from Obstructions.

14 Unless the requirements of through are met, sprinklers shall be positioned away from obstructions a minimum distance of three times the maximum dimension of the obstruction (e.g., structural members, pipe, columns, and fixtures) in accordance with Figure (a) and Figure (b). Figure (a) Minimum Distance from an Obstruction in the Vertical Orientation (SSU/SSP). Figure (b) Minimum Distance from an Obstruction in the Horizontal Orientation (SSU/SSP). 2 of /31/ :33 AM

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16 (A) The maximum clear distance required shall be 24 in. ( mm) in accordance with Figure (B). Figure (A) Minimum Distance from Obstruction (SSU/SSP). (B) The maximum clear distance shall not be applied to obstructions in the vertical orientation (e.g., columns). Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Mon Dec 15 09:54:24 EST 2014 Committee Statement Committee Statement: The figures modified during the second revision stage remain unchanged, however the captions for figures (a) and (b) have been modified to correlate with the titles of similar figures in chapter 8. Committee Comment No. 38-NFPA [Section No ] 4 of /31/ :33 AM

17 5 of /31/ :33 AM Second Correlating Revision No. 34-NFPA [ Section No ] *

18 Unless the requirements of or are met, sprinklers shall be positioned away from obstructions a minimum distance of three times the maximum dimension of the obstruction (e.g., truss webs and chords, pipe, columns, and fixtures). The maximum clear distance required shall be 24 in. (610 mm) and shall be positioned in accordance with Figure where obstructions are present in accordance with Figure (a) and Figure (b). Figure (a) Minimum Distance from Obstruction (Standard Sidewall Spray Sprinkler). Minimum Distance from an Obstruction in the Vertical Orientation (Standard Sidewall Spray Sprinklers). 6 of /31/ :33 AM

19 7 of /31/ :33 AM Figure (b) Minimum Distance from an Obstruction in the Horizontal Orientation (Standard Sidewall Spray Sprinklers).

20 (A) The maximum clear distance required to obstructions in the horizontal orientation (e.g., light fixtures and truss chords) shall be 24 in. (600 mm). (B) The maximum clear distance shall not be applied to obstructions in the vertical orientation (e.g., columns). Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: Street Address: City: State: National Fire Protection Assoc 8 of /31/ :33 AM

21 9 of /31/ :33 AM Zip: Submittal Date: Wed Dec 17 07:17:24 EST 2014 Committee Statement Committee Statement: Figure captions were revised for consistency with the same figures in other sections. Second Revision No. 39-NFPA [Section No ]

22 0 of /31/ :33 AM Second Correlating Revision No. 33-NFPA [ Section No ] *

23 Unless the requirements of through are met, sprinklers shall be positioned away from obstructions a minimum distance of four times the maximum dimension of the obstruction (e.g., truss webs and chords, pipe, columns, and fixtures). The maximum clear distance required shall be 36 in. (914 mm) in accordance with Figure in accordance with Figure (a) and Figure (b). Figure (a) Minimum Distance from Obstruction (Extended Coverage Upright and Pendent Spray Sprinklers). Minimum Distance from an Obstruction in the Vertical Orientation (Extended Coverage Upright and Pendent Spray Sprinkler). 1 of /31/ :33 AM

24 Figure (b) Minimum Distance from an Obstruction in the Horizontal Orientation (Extended Coverage Upright and Pendent Spray Sprinkler). (A) The maximum clear distance required to obstructions in the horizontal orientation (e.g., light fixtures and truss chords) shall be 36 in. (914 mm). (B) The maximum clear distance shall not be applied to obstructions in the vertical orientation (e.g., columns). 2 of /31/ :33 AM

25 3 of /31/ :33 AM Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Wed Dec 17 07:12:52 EST 2014 Committee Statement Committee Statement: Editorial correlation to make the titles of the figures match the same figures in other sections. Second Revision No. 40-NFPA [Section No ]

26 4 of /31/ :33 AM Second Correlating Revision No. 32-NFPA [ Section No ]

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28 6 of /31/ :33 AM Continuous obstructions projecting from the same wall as the one on which the sidewall sprinkler is mounted shall be in accordance with one of the following arrangements: (1) Sprinklers shall be installed in accordance with Table and Figure (a). (2) Sprinklers shall be permitted to be spaced on opposite sides of obstructions less than 4 ft (1.22 m) in width where the distance from the centerline of the obstruction to the sprinklers does not exceed one-half the allowable distance between sprinklers. (3) Obstructions located against the wall and that are not over 30 in. (762 mm) in width shall be permitted to be protected in accordance with Figure (b). (4) Obstructions located against the wall and that are not over 24 in. (610 mm) in width shall be permitted to be protected in accordance with Figure (c). The maximum distance between the sprinkler and the wall shall be measured from the sprinkler to the wall behind the obstruction and not to the face of the obstruction. Table Positioning of Sprinklers to Avoid Obstructions Along Wall (Extended Coverage Sidewall Spray Sprinklers) Distance from Sidewall Sprinkler to Side of Obstruction (A) Less than 1 ft 6 in. 0 1 ft 6 in. to less than 3 ft 1 3 ft to less than 4 ft 3 4 ft to less than 4 ft 6 in. 5 4 ft 6 in. to less than 6 ft 7 6 ft to less than 6 ft 6 in. 9 6 ft 6 in. to less than 7 ft 11 7 ft to less than 7 ft 6 in. 14 For SI units, 1 in. = 25.4 mm; 1 ft = m. Maximum Allowable Distance of Deflector Above Bottom of Obstruction (B) (in.) Note: For A and B, refer to Figure (a). Figure (a) Positioning of Sprinkler to Avoid Obstruction Along Wall (Extended Coverage Sidewall Spray Sprinklers).

29 7 of /31/ :33 AM Figure (b) Obstruction Against Wall (Standard Extended Coverage Sidewall Spray Sprinklers). Figure (c) Obstruction Against Wall (Standard Extended Coverage Sidewall Spray Sprinklers).

30 8 of /31/ :33 AM Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Tue Dec 16 13:01:13 EST 2014 Committee Statement

31 9 of /31/ :33 AM Committee Statement: The captions for figures (a) and (b) have been updated to address extended coverage sidewall. This is an editorial change.

32 0 of /31/ :33 AM Second Correlating Revision No. 35-NFPA [ Section No ]

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34 2 of /31/ :33 AM Continuous obstructions projecting from the same wall as the one on which the sidewall sprinkler is mounted shall be in accordance with one of the following arrangements: (1) Sprinklers shall be in accordance with Table and Figure (a). (2) Sprinklers shall be permitted to be spaced on opposite sides of obstructions less than 4 ft (1.22 m) in width where the distance from the centerline of the obstruction to the sprinklers does not exceed one-half the allowable distance between sprinklers. (3) Obstructions located against the wall and that are not over 30 in. (762 mm) in width shall be permitted to be protected in accordance with Figure (b). (4) Obstructions located against the wall and that are not over 24 in. (610 mm) in width shall be permitted to be protected in accordance with Figure (c). The maximum distance between the sprinkler and the wall shall be measured from the sprinkler to the wall behind the obstruction and not to the face of the obstruction. Table Positioning of Sprinklers to Avoid Obstructions Along Wall (Residential Sidewall Sprinklers) Distance from Sidewall Sprinkler to Side of Obstruction (A) Less than 1 ft 6 in. 0 1 ft 6 in. to less than 3 ft 1 3 ft to less than 4 ft 3 4 ft to less than 4 ft 6 in. 5 4 ft 6 in. to less than 6 ft 7 6 ft to less than 6 ft 6 in. 9 6 ft 6 in. to less than 7 ft 11 7 ft to less than 7 ft 6 in. 14 Maximum Allowable Distance of Deflector Above Bottom of Obstruction (B) (in.) For SI units, 1 in. = 25.4 mm; 1 ft = m. Note: For A and B, refer to Figure (a). Figure (a) Positioning of Sprinkler to Avoid Obstruction Along Wall (Residential Sidewall Sprinklers).

35 3 of /31/ :33 AM Figure (b) Obstruction Against Wall (Standard Residential Sidewall Spray Sprinklers). Figure (c) Obstruction Against Wall (Standard Residential Sidewall Spray Sprinklers).

36 4 of /31/ :33 AM Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Wed Dec 17 07:24:08 EST 2014 Committee Statement

37 5 of /31/ :33 AM Committee Statement: Figure captions were revised to reflect the appropriate sprinkler type.

38 Second Correlating Revision No. 36-NFPA [ Sections , ] * Unless the requirements of through are met, sprinklers shall be positioned away from obstructions a minimum distance of four times the maximum dimension of the obstruction (e.g., truss webs and chords, pipe, columns, and fixtures). (A) The maximum clear distance required from obstructions in the horizontal orientation (e.g., light fixtures and truss chords) shall be 36 in. ( mm) from the sprinkler (e.g., truss webs and chords, pipe, columns, and fixtures). (B) The maximum clear distance shall not be applied to obstructions in the vertical orientation (e.g., columns). 6 of /31/ :33 AM

39 7 of /31/ :33 AM

40 Sidewall sprinklers shall be positioned in accordance with Figure Figure (a) and Figure (b) when obstructions are present. Figure (a) Minimum Distance from an Obstruction in the Vertical Orientation (Residential Sidewall Sprinkler). Figure (b) Minimum Distance from an Obstruction in the Horizontal Orientation (Residential Sidewall Sprinkler). 8 of /31/ :33 AM

41 9 of /31/ :33 AM Supplemental Information File Name SCR_36.docx Description Revised figure (b) Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State:

42 0 of /31/ :33 AM Zip: Submittal Date: Wed Dec 17 07:26:30 EST 2014 Committee Statement Committee Statement: Editorial correction to reverse the "less than or equal to sign". Second Revision No. 43-NFPA [Sections , ]

43 Reverse the less than or equal to sign should read A > 4C or 4D

44 Second Correlating Revision No. 25-NFPA [ Section No ] 9.2.6* Pipe Stands General Where pipe stands are used to support system piping, the requirements of shall apply unless the requirements of are met Pipe stands certified by a registered professional engineer to include all of the following shall be an acceptable alternative to the requirements of 9.2.6: (1) Pipe stands shall be designed to support five times the weight of water-filled pipe plus 250 lb (114 kg) at each point of piping support. (2) These points of support shall be adequate to support the system. (3) The spacing between pipe stands shall not exceed the value given for the type of pipe as indicated in Table (a) or Table (b). (4) Pipe stand components shall be ferrous. (5) Detailed calculations shall be submitted, when required by the reviewing authority, showing stresses developed in the pipe stand, the system piping and fittings, and safety factors allowed Where water-based fire protection systems are required to be protected against damage from earthquakes, pipe stands shall also meet the requirements of Component Material Pipe stands and their components shall be ferrous unless permitted by Nonferrous components that have been proven by fire tests to be adequate for the hazard application and that are in compliance with the other requirements of this section shall be acceptable Sizing. 1 of /31/ :33 AM

45 * The maximum heights for pipe stands shall be in accordance with Table unless the requirements of are met. Table Maximum Pipe Stand Heights a System Pipe Diameter c Pipe Stand Diameter b in. 2 in in. 3 in. 4 in. 6 in in. 10 ft ft ft ft ft 30 ft 2 in. 8 ft 12 ft ft ft ft 30 ft in. 6 ft 10 ft 14 ft ft ft 30 ft 3 in. 8 ft 12 ft ft ft 30 ft >3 4 in. up to and including 8 in. 10 ft 30 ft a For SI units, 1 in. = 25.4 mm; 1 ft = m. b Pipe stands are Schedule 40 pipe. c System piping is assumed to be Schedule 40 (8-in. is Schedule 30) * Pipe diameters up to and including 10 in. (200 mm) Schedule 40 are permitted to be supported by 2 in. (50 mm) diameter pipe stands when all of the following conditions are met: (1) The maximum height shall be 4 ft (1.2 m), as measured from the base of the pipe stand to the centerline of the pipe being supported. (2)* The pipe stand shall be axially loaded The distance between pipe stands shall not exceed the values in Table (a) or Table (b) Pipe Stand Base The pipe stand base shall be secured by an approved method * Pipe stand base plates shall be threaded malleable iron flanges or welded steel flanges in accordance with Table Pipes stands installed in accordance with shall be permitted to use a welded steel plate * Pipe stands shall be anchored fastened to a concrete pier or footing with either expansion shields, bolts for concrete, or cast-in-place J hooks floor or footing using listed concrete anchors or other approved means A minimum of four anchors shall be used to attach the base plate to the floor. 2 of /31/ :33 AM

46 Pipe stands installed in accordance with shall be permitted to use a minimum of two anchors to attach the base plate to the floor The minimum diameter for the anchors shall be 1 2 in. for pipe stand diameters up to and including 3 in. and 5 8 in. for pipe stands 4 in. diameter and larger Where the pipe stand complies with , 3 8 -in. anchors shall be permitted Attaching to System Piping Piping shall be attached to the pipe stand with U-bolts or equivalent attachment * Where a horizontal bracket is used to attach the system piping to the pipe stand, it shall not be more than 1 ft (0.3 m) as measured horizontally from the centerline of the pipe stand to the centerline of the supported pipe Horizontal support brackets shall be sized such that the section modulus required in Table does not exceed the available section modulus from Table (b). Table Required Section Modulus for Pipe Stand Horizontal Support Arms (in. 3 ) Nominal Diameter of Pipe Being Supported (in.) Section Modulus Schedule 10 Steel Section Modulus Schedule 40 Steel For SI units, 1 in. = 25.4 mm. Note: The table is based on a maximum bending stress of 15 ksi and a 1 ft (0.3 m) cantilever supporting a concentrated load from 15 ft (4.6 m) of water-filled pipe plus 250 lb (114 kg) Thrust * System piping shall be supported and restrained to restrict movement due to sprinkler/nozzle reaction and water surges. 3 of /31/ :33 AM

47 * Where thrust forces are anticipated to be high, a pipe ring or clamp shall secure the system piping to the pipe stand Exterior Applications. Pipe stands shall be constructed of Schedule 40 threaded pipe, malleable iron flange base, and shall have a threaded cap top Where required, pipe stands used in exterior applications shall be made of galvanized steel or other suitable corrosion-resistant materials A welded, threaded, grooved, or other approved cap shall be securely attached to the top of the pipe stand. Supplemental Information File Name SCR_25_Table.docx Description Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Tue Dec 16 07:55:07 EST 2014 Committee Statement Committee Section was deleted because it was identical to section Statement: The maximum pipe stand height table was corrected. The table submitted as part of the pipe stand task group report at the First Draft Meeting was not included in the Second Draft of the standard. This revision corrects the incidental omission and is consistent with the intent of the pipe stand task group and the actions taken by the HBS TC. Second Revision No. 11-NFPA [Section No ] 4 of /31/ :33 AM

48 Table Maximum Pipe Stand Heights a System Pipe Stand Diameter b Pipe 1 ½ 2 in. 2 ½ 3 in. 4 in. 6 in. Diameter c in. in. 1 ½ in. 10 ft 12 ft 15 ft 18 ft 25 ft 30 ft 2 in. 8 ft 12 ft 15 ft 18 ft 25 ft 30 ft 2 ½ in. 6 ft 10 ft 14 ft 18 ft 25 ft 30 ft 3 in ft 12 ft 18 ft 25 ft 30 ft 4 in. up to and including 8 in ft 30 ft a For SI units, 1 in. = 25.4 mm; 1 ft = m. b Pipe stands are Schedule 40 pipe. c System piping is assumed to be Schedule 40 (8-inch is Schedule 30).

49 Second Correlating Revision No. 17-NFPA [ Section No ] * Adjacent Hazards or Design Methods. For buildings with two or more adjacent hazards or design methods, the following shall apply: (1) Where areas are not physically separated by a draft curtain, barrier, or partition capable of delaying heat from a fire in one area from fusing sprinklers in the adjacent area, the required sprinkler protection for the more demanding design basis shall extend 15 ft (4.6 m) beyond its perimeter. (2) The requirements of (1) shall not apply where the areas are separated by a draft curtain, or barrier, or located above an aisle, where the aisle has a minimum 2 ft (0.6 m) horizontal separation from the adjacent hazard on each side, or a partition that is capable of delaying heat from a fire in one area from fusing sprinklers in the adjacent area. (3) The requirements of (1) shall not apply to the extension of more demanding criteria from an upper ceiling level to beneath a lower ceiling level where the difference in height between the ceiling levels is at least 2 ft (0.6 m), located above an aisle, where the aisle has a minimum 2 ft (0.6 m) horizontal separation from the adjacent hazard on each side. Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Mon Dec 15 08:39:54 EST 2014 Committee Statement Committee Statement: This SCR correlates Chapter 11 and 12 for design methods where adjacent hazards exist. Chapter 12 was revised during the first and second draft stages, however chapter 11 was not updated. The language accepted at the Second Draft Meeting for chapter 12 is being included in Chapter 11 with editorial changes for clarity. The language accepted in Chapter 12 did not clearly state that the minimum two foot dimension is from the hazard on each side. The intent of the section is a minimum 4 ft aisle, which is now clear. 5 of /31/ :33 AM

50 Second Correlating Revision No. 16-NFPA [ Section No ] 12.3* Adjacent Hazards or Design Methods. For buildings with two or more adjacent hazards or design methods, the following shall apply: (1) Where areas are not physically separated by a barrier or partition capable of delaying heat from a fire in one area from fusing sprinklers in the adjacent area, the required sprinkler protection for the more demanding design basis shall extend 15 ft (4.6 m) beyond its perimeter. (2) The requirements of 12.3(1) shall not apply where the areas are separated by a draft curtain, or barrier,or located above an aisle, horizontally a minimum of 2 ft (0.6 m) from the adjacent hazard on each side, or a partition that is capable of delaying heat from a fire in one area from fusing sprinklers in the adjacent area. (3) The requirements of 12.3(1) shall not apply to the extension of more demanding criteria from an upper ceiling level to beneath a lower ceiling level where the difference in height between the ceiling levels is at least 2 ft (0.6 m), located above an aisle, horizontally a minimum 2 ft (0.6 m) from the adjacent hazard on each side. Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Mon Dec 15 08:37:29 EST 2014 Committee Statement Committee Statement: The language accepted at the Second Draft Meeting is not clear that the minimum two foot dimension is from the hazard on each side. The intent of the section is a minimum 4 ft aisle, which is now clear. Second Revision No. 73-NFPA [Section No. 12.3] 6 of /31/ :33 AM

51 7 of /31/ :33 AM Second Correlating Revision No. 31-NFPA [ Section No [Excluding any Sub-Sections] ]

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53 Unless indicated otherwise, the minimum water supply requirements for a hydraulically designed sprinkler system shall be determined by adding the hose stream allowance from Table to the water demand for sprinklers. Table Hose Stream Allowance and Water Supply Duration Commodity Sprinkler Type Sprinkler Spacing Type Number of * Ceiling Sprinklers in Design Area* Size of Design Area at Ceiling Hose Stream Allowance gpm L/min Water Supply Duration (minutes) Up to 1200 ft 2 (111 m 2 ) Control mode density/area (CMDA) Standard and extendedcoverage NA Over 1200 ft 2 (111 m 2 ) up to 1500 ft 2 (139 m 2 ) Over 1500 ft 2 (139 m 2 ) up to 2600 ft 2 (240 m 2 ) Over 2600 ft 2 (240 m 2 ) Class I-IV Commodities, Group A plastics, idle wood pallets, idle plastic pallets and miscellaneous storage Control Mode Specific Application ( CMSA) Standard Extendedcoverage Up to 12 NA Over 12 to 15 NA Over 15 to 25 NA Over 25 NA Up to 6 NA ft 2 (13.4 Up to 8 m 2 ) maximum NA Over 6 to 8 NA Over 8 to 12 NA Over 12 NA Early Suppression Fast Response ( ESFR) Standard Up to 12 NA Over 12 to 15 NA Over 15 to 25 NA Over 25 NA of /31/ :33 AM

54 0 of /31/ :33 AM Commodity On-floor rubber tire storage up to 5 ft (1.5 m) in height Rubber tire storage Roll paper Alternative Protection per or Sprinkler Type CMDA & CMSA CMDA Sprinkler Spacing Type Number of * Ceiling Sprinklers in Design Area* Size of Design Area at Ceiling Hose Stream Allowance gpm L/min Water Supply Duration (minutes) Standard and extendedcoverage Any Any Standard and extendedcoverage NA Up to 5000 ft 2 (372 m CMSA Standard Up to 15 NA ESFR CMDA Standard Standard Up to 12 NA Over 12 to20 NA NA Up to 4000 ft 2 (372 m CMSA Standard Up to 25 NA ESFR Standard Up to 12 NA NA NA NA NA NA: Not applicable. *For CSMA and ESFR sprinklers, the additional sprinklers included in the design area for obstructions do not need to be considered in determining the total number of sprinklers in this column. Limited to a maximum of 144 ft 2 (13.4 m 2 ) per sprinkler. Supplemental Information File Name SCR_31_Addition_to_Table.docx Description Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City:

55 1 of /31/ :33 AM State: Zip: Submittal Date: Tue Dec 16 11:48:12 EST 2014 Committee Statement Committee Statement: A new row has been added to the table to address hose stream and duration data from the new alternative protection sections. This data has been relocated from Chapter 16 and 17 into this appropriate location in this chapter. This information was accepted in SR 88 and SR 89 and is simply being relocated to correlate with the revision made to the 2013 edition on hose stream and duration. Committee Comment No. 143-NFPA [Section No [Excluding any Sub-Sections]]

56 Add a new Line at the end of Table as follows: Sprinkler Type Alternative Protection per or Sprinkler Spacing Type Number of Sprinklers in Design Area* Size of Design Area Hose Stream Allowance gpm L/min Water Supply Duration (minutes) NA NA NA

57 Second Correlating Revision No. 20-NFPA [ New Section after ] Solid Shelf Racks For storage of Class I through Class IV 12 ft (3.7 m) or less in height that does not meet the definition of Miscellaneous Storage that is on solid shelf racks, in-rack sprinklers shall be provided in accordance with , and ceiling sprinkler protection shall be provided in accordance with Chapter For storage of Group A Plastics 5 ft (1.5 m) or less in height that does not meet the definition of Miscellaneous Storage that is on solid shelf racks, in-rack sprinklers shall be provided in accordance with , and ceiling sprinkler protection shall be provided in accordance with Chapter 13. Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Mon Dec 15 09:40:57 EST 2014 Committee Statement Committee Statement: This is a correlation revision to copy the text from Chapter 16 and 17 into Chapter 13. Based on the storage heights referenced in the new section and , users may go to Chapter 13 and never find this guidance if it resides only in Chapters 16 and 17. This is not a technical change, just adding the requirement in multiple locations to make sure the reader finds this criteria. 2 of /31/ :33 AM

58 Second Correlating Revision No. 9-NFPA [ New Section after ] Alternative Protection. Class I, II, III, IV commodities requiring a greater level of protection than is available from the overhead sprinkler system shall be permitted to be protected in accordance with through Where the storage rack will not be solely dedicated to the storage of commodities requiring a greater level of protection than is available from the overhead sprinkler system, either of the following shall apply: (1) Extend the protection prescribed by horizontally one pallet load in all directions beyond the commodity storage area requiring the higher level of protection. (2) Install a vertical barrier to segregate the commodities requiring the higher level of protection from any adjacent commodities Commodities that can be protected by the ceiling-level sprinkler system shall be permitted to be stored vertically above and horizontally adjacent to the portions of the storage rack equipped as prescribed by Horizontal Barriers. Horizontal barriers shall be installed at every tier level of the dedicated storage rack where the rack is equipped with solid shelves Where the dedicated storage rack is open-frame, horizontal barriers shall be installed at vertical increments not exceeding 12 ft (3.6 m) The barriers shall span horizontally so that all flue spaces within the rack bay are covered A maximum 3 in. (75 mm) wide gap shall be permitted at rack uprights The solid barrier shall be installed on a horizontal plane within a rack, beneath which in-rack sprinklers shall be installed, as follows: (1) The barrier shall be constructed of minimum 22 gauge (0.7 mm) sheet metal or of minimum 3 8 in. (10 mm) plywood. (2) The barrier shall extend to both aisle faces of the racks, covering up both the longitudinal and the transverse flue spaces of the rack bays in which they are installed. (3) The barrier shall be fitted to within 3 in. (75 mm) of any vertical rack member or other equipment that would create an opening, such as vertical in-rack sprinkler pipe drops In-Rack Sprinklers. Minimum K-8.0 (K-115) quick-response sprinklers (ceiling-level or in-rack) shall be installed beneath each horizontal barrier. The deflector of the sprinkler shall be located as close to the underside of the horizontal barrier as possible. 3 of /31/ :33 AM

59 Single-Row Racks. (A) For single-row racks, sprinklers shall be installed at each rack upright and at each rack mid-bay as shown in Figure (A). Figure (A) Alternative Protection for Single-Row Racks. (B) The maximum linear spacing between sprinklers shall not exceed 5 ft (1.5 m) Double-Row Racks. 4 of /31/ :33 AM

60 (A) For double-row racks, sprinklers shall be installed at each rack upright within the longitudinal flue space and at the face of the rack and at the mid-bay face of each rack bay as shown in Figure (A). Figure (A) Alternative Protection for Double-Row Racks. 5 of /31/ :33 AM

61 (B) The maximum linear spacing between sprinklers shall not exceed 5 ft (1.5 m) at the rack face and 10 ft (3.0 m) within the longitudinal flue space Multiple-Row Racks. 6 of /31/ :33 AM

62 7 of /31/ :33 AM (A)

63 For multiple-row racks, an alternating sprinkler arrangement shall be installed within adjacent transverse flue spaces as shown in Figure (A), with sprinklers at the face of each flue space. Figure (A) Alternative Protection for Multiple-Row Racks. 8 of /31/ :33 AM

64 9 of /31/ :33 AM

65 (B) The maximum linear spacing between sprinklers at the face and at each alternating bay shall not exceed 5 ft (1.5 m) and shall not exceed 10 ft (3.0 m) between sprinklers at every other bay The design of an in-rack sprinkler system shall be based on a minimum flow of 60 gpm (230 L/min) from the most remote six sprinklers for single-row racks or the most remote eight sprinklers for both double-row and multiple-row racks The in-rack sprinkler demand shall not be required to be hydraulically balanced with the ceiling-level sprinkler system Ceiling Sprinkler System. The ceiling-level sprinkler system shall be designed based on the highest commodity hazard not protected by the criteria prescribed by Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Sat Dec 13 19:33:22 EST 2014 Committee Statement Committee Statement: During the 2013 revision cycle, the TCs responsible for NFPA 13 moved all of the hose stream and duration requirements to a common table in Chapter 12. This SCR along with SCR 10 and 31 relocate the alternative protection scheme hose stream data to Chapter 12. Committee Comment No. 88-NFPA [New Section after ] 0 of /31/ :33 AM

66 Second Correlating Revision No. 29-NFPA [ New Section after ] * Where solid shelves obstruct only a portion of the rack, in-rack sprinklers shall be installed horizontally, within the flue a minimum of 4 ft (1.2 m) beyond the end of the solid shelf, and vertically as follows: (1) In accordance with and for CMDA sprinklers (2) Beneath all tiers under the highest solid shelf for CMSA and ESFR sprinklers Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Tue Dec 16 09:45:11 EST 2014 Committee Statement Committee Statement: Section applies the vertical in-rack sprinkler placement for CMSA and ESFR sprinklers to CMDA sprinklers that only requires in-rack sprinklers beneath each solid shelf, not in every tier beneath the highest solid shelf. As such, the requirement for solid shelving in only a portion of the rack is more demanding than solid shelving throughout the rack footprint. This revision does not make a technical change, simply coordinates the requirements based on the type of sprinkler used at the ceiling. Committee Comment No. 66-NFPA [New Section after ] 1 of /31/ :33 AM

67 Second Correlating Revision No. 19-NFPA [ New Section after ] Ceiling design criteria for CMDA, CMSA, and ESFR sprinklers shall be an applicable option for open racks combined with in-rack sprinklers installed in accordance with the criteria for solid shelving. Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Mon Dec 15 09:32:53 EST 2014 Committee Statement Committee Statement: There are multiple section addressing the criteria for shelving design. Rather than simply listing two reference sections, this requirement would be more comprehensive to simply refer to solid shelving criteria in general. Second Revision No. 67-NFPA [New Section after ] 2 of /31/ :33 AM

68 Second Correlating Revision No. 10-NFPA [ New Section after ] Alternative Protection. The protection of Group A plastic commodities requiring a greater level of protection than is available from the overhead sprinkler system shall be permitted to be protected in accordance with through Where the storage rack will not be solely dedicated to the storage of commodities requiring a greater level of protection than is available from the overhead sprinkler system, either of the following shall apply: (1) Extend the protection prescribed by horizontally one pallet load in all directions beyond the commodity storage area requiring the higher level of protection. (2) Install a vertical barrier to segregate the commodities requiring the higher level of protection from any adjacent commodities Commodities that can be protected by the ceiling-level sprinkler system shall be permitted to be stored vertically above and horizontally adjacent to the portions of the storage rack equipped as prescribed by Horizontal Barriers. Horizontal barriers shall be installed at every tier level of the dedicated storage rack where the rack is equipped with solid shelves Where the dedicated storage rack is open-frame, horizontal barriers shall be installed at vertical increments not exceeding 12 ft (3.6 m) The barriers shall span horizontally so that all flue spaces within the rack bay are covered A maximum 3 in. (75 mm) wide gap shall be permitted at rack uprights The solid barrier shall be installed on a horizontal plane within a rack, beneath which in-rack sprinklers shall be installed, as follows: (A) The barrier shall be constructed of minimum 22 gauge (0.7 mm) sheet metal or of minimum 3 8 in. (10 mm) plywood. (B) The barrier shall extend to both ends and both aisle faces of the racks covering up both the longitudinal and transverse flue spaces of the rack bays in which they are installed. (C) The barrier shall be fitted to within 3 in. (75 mm) of any vertical rack member or other equipment that would create an opening, such as vertical in-rack sprinkler pipe drops In-Rack Sprinklers. 3 of /31/ :33 AM

69 Minimum K-8.0 (K-115) quick-response sprinklers (ceiling-level or in-rack) shall be installed beneath each horizontal barrier. The deflector of the sprinkler shall be located as close to the underside of the horizontal barrier as possible Single-Row Racks. (A) For single-row racks, sprinklers shall be installed at each rack upright and at each rack mid-bay as shown in Figure (A). Figure (A) Alternative Protection Single-Row Racks. (B) The maximum linear spacing between sprinklers shall not exceed 5 ft (1.5 m). 4 of /31/ :33 AM

70 5 of /31/ :33 AM Double-Row Racks.

71 (A) For double-row racks, sprinklers shall be installed at each rack upright within the longitudinal flue space and at the face of the rack and at the mid-bay face of each rack bay as shown in Figure (A). Figure (A) Alternative Protection Double-Row Racks. 6 of /31/ :33 AM

72 (B) The maximum linear spacing between sprinklers shall not exceed 5 ft (1.5 m) at the rack face and 10 ft (3.0 m) within the longitudinal flue space Multiple-Row Racks. 7 of /31/ :33 AM

73 8 of /31/ :33 AM (A)

74 For multiple-row racks, an alternating sprinkler arrangement shall be installed within adjacent transverse flue spaces, as shown in Figure (A), with sprinklers at the face of each flue space. Figure (A) Alternative Protection Multiple-Row Racks. 9 of /31/ :33 AM

75 0 of /31/ :33 AM

76 (B) The maximum linear spacing between sprinklers at the face and each alternating bay shall not exceed 5 ft (1.5 m) and shall not exceed 10 ft (3.0 m) between sprinklers at every other bay The design of an in-rack sprinkler system shall be based on a minimum flow of 60 gpm (230 L/min) from the most remote six sprinklers for single-row racks or the most remote eight sprinklers for both double-row and multiple-row racks The in-rack sprinkler demand shall not be required to be hydraulically balanced with the ceiling-level sprinkler system Ceiling Sprinkler System. The ceiling-level sprinkler system shall be designed based on the highest commodity hazard not protected by the criteria prescribed by Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Sat Dec 13 19:38:10 EST 2014 Committee Statement Committee Statement: During the 2013 revision cycle, the TCs responsible for NFPA 13 moved all of the hose stream and duration requirements to a common table in Chapter 12. This SCR along with SCR 9 and 31 relocate the alternative protection scheme hose stream data to Chapter 12. Committee Comment No. 89-NFPA [New Section after ] 1 of /31/ :33 AM

77 Second Correlating Revision No. 18-NFPA [ Section No ] Design criteria for combined ceiling and in-rack Ceiling design criteria for CMDA, CMSA, and ESFR sprinklers shall be used for the storage configurations in an applicable option for open racks combined with in-rack sprinklers installed in accordance with and the criteria for solid shelving. Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Mon Dec 15 09:28:56 EST 2014 Committee Statement Committee Statement: There are multiple section addressing the criteria for shelving design. Rather than simply listing two reference sections, this requirement would be more comprehensive to simply refer to solid shelving criteria in general. Second Revision No. 70-NFPA [Section No ] 2 of /31/ :33 AM

78 Second Correlating Revision No. 30-NFPA [ New Section after ] Where solid shelves obstruct only a portion of the rack, in-rack sprinklers shall be installed horizontally, within the flue a minimum of 4 ft (1.2 m) beyond the end of the solid shelf, and vertically as follows: (1) In accordance with and for CMDA sprinklers (2) Beneath all tiers under the highest solid shelf for CMSA and ESFR sprinklers Submitter Information Verification Submitter Full Name: Matthew Klaus Organization: National Fire Protection Assoc Street Address: City: State: Zip: Submittal Date: Tue Dec 16 11:02:55 EST 2014 Committee Statement Committee Statement: Section applies the vertical in-rack sprinkler placement for CMSA and ESFR sprinklers to CMDA sprinklers that only requires in-rack sprinklers beneath each solid shelf, not in every tier beneath the highest solid shelf. As such, the requirement for solid shelving in only a portion of the rack is more demanding than solid shelving throughout the rack footprint. This revision does not make a technical change, simply coordinates the requirements based on the type of sprinkler used at the ceiling. Committee Comment No. 72-NFPA [New Section after ] 3 of /31/ :33 AM

79 4 of /31/ :33 AM Second Correlating Revision No. 37-NFPA [ Section No. A ]