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Nfpa 13

The document contains several tables providing information on protection areas and maximum sprinkler spacing for different sprinkler types and hazard levels. Table headings include light hazard, ordinary hazard, extra hazard, and high-piled storage protection areas. The tables provide the maximum protected area in square feet and square meters for each hazard level and type of construction, as well as the corresponding maximum spacing between sprinklers in feet and meters.

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Nghia Huynh Ngoc
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2K views5 pages

Nfpa 13

The document contains several tables providing information on protection areas and maximum sprinkler spacing for different sprinkler types and hazard levels. Table headings include light hazard, ordinary hazard, extra hazard, and high-piled storage protection areas. The tables provide the maximum protected area in square feet and square meters for each hazard level and type of construction, as well as the corresponding maximum spacing between sprinklers in feet and meters.

Uploaded by

Nghia Huynh Ngoc
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
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Table 5-6.2.

2(a) Protection Areas and Maximum Spacing (Standard Spray Upright/Standard Spray Pendent) for Light Hazard Protection Area Construction Type System Type ft2 Noncombustible obstructed and unobstructed and combustible unobstructed Combustible obstructed Combustible with members less than 3 ft on center Pipe schedule Hydraulically calculated All All 200 225 m2 18.6 20.9 ft 15 15 m 4.6 4.6 Spacing (maximum)

168 130

15.6 12.1

15 15

4.6 4.6

Table 5-6.2.2(b) Protection Areas and Maximum Spacing (Standard Spray Upright/Standard Spray Pendent) for Ordinary Hazard Protection Area Construction Type All System Type ft2 All 130 m2 12.1 ft 15 m 4.6 Spacing (maximum)

Table 5-6.2.2(c) Protection Areas and Maximum Spacing (Standard Spray Upright/Standard Spray Pendent) for Extra Hazard Protection Area Construction Type All System Type ft2 Pipe schedule 90 m2 8.4 ft 12 m 3.7 Spacing (maximum)

[In buildings with storage bays 25 ft (7.6 m) wide, 12 ft 6 in. (3.8 m) shall be permitted] All Hydraulically calculated with density 0.25 100 9.3 12 3.7

[In buildings with storage bays 25 ft (7.6 m) wide, 12 ft 6 in. (3.8 m) shall be permitted]

All

Hydraulically calculated with density <0.25

130

12.1

15

4.6

Table 5-6.2.2(d) Protection Areas and Maximum Spacing (Standard Spray Upright/Standard Spray Pendent) for High-Piled Storage Protection Area Construction Type All System Type ft2 Hydraulically calculated with density 0.25 100 m2 9.3 ft 12 m 3.7 Spacing (maximum)

[In buildings with storage bays 25 ft (7.6 m) wide, 12 ft 6 in. (3.8 m) shall be permitted]

All

Hydraulically calculated with density <0.25

130

12.1

15

4.6

Table 5-8.2.1 Protection Areas and Maximum Spacing (Extended Coverage Upright and Pendent Spray Sprinklers) Light Hazard Construction Type Protection Area ft2 Unobstructed 400 324 256 400 Obstructed noncombustible (when specifically listed for such use) Obstructed combustible For SI units, 1 ft = 0.3048 m; 1 ft2 = 0.0929 m2. 324 256 N/A m2 37.2 30.1 23.8 37.2 30.1 23.8 N/A Spacing ft 20 18 16 20 18 16 N/A m 6.1 1.7 1.5 1.9 1.7 1.5 N/A Ordinary Hazard Protection Area ft2 400 324 256 196 144 400 324 256 196 144 N/A m2 37.2 30.1 23.8 18.2 13.4 37.2 30.1 23.8 18.2 13.4 N/A Spacing ft 20 18 16 14 12 20 18 16 14 12 N/A m 1.9 1.7 1.5 1.3 1.1 1.9 1.7 1.5 1.3 1.1 N/A Extra Hazard Protection Area ft2 196 144 196 144 N/A m2 18.2 13.4 18.2 13.4 N/A Spacing ft 14 12 14 12 N/A m 1.3 1.1 1.3 1.1 N/A High-Pile Storage Protection Area ft2 196 144 196 144 N/A m2 18.2 13.4 18.2 13.4 N/A Spacing ft 14 12 14 12 N/A m 1.3 1.1 1.3 1.1 N/A

Table 8-5.3.2(a) Ordinary Hazard Pipe Schedule Steel in. mm Sprinklers in. 1.00 25 2 1.00 1.25 32 3 1.25 1.50 40 5 1.50 2.00 50 10 2.00 2.50 65 20 2.50 3.00 80 40 3.00 3.50 90 65 3.50 4.00 100 100 4.00 5.00 125 160 5.00 6.00 150 275 6.00 8.00 200 See 5-2 8.00

Copper mm 25 32 40 50 65 80 90 100 125 150 200

Sprinklers 2 3 5 12 25 45 75 115 180 300 See 5-2

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