Loading...
415.6 Fire separation distance.
Group H occupancies shall be located on property in accordance with the other provisions of this chapter. In Groups H-2 and H-3, not less than 25 percent of the perimeter wall of the occupancy shall be an exterior wall.
Exceptions:
1. Liquid use, dispensing and mixing rooms having a floor area of not more than 500 square feet (46.5 m
2
) need not be located on the outer perimeter of the building where they are in accordance with the New York City Fire Code and NFPA 30.
2. Liquid storage rooms having a floor area of not more than 1,000 square feet (93 m
2
) need not be located on the outer perimeter where they are in accordance with the New York City Fire Code and NFPA 30.
3. Spray paint booths that comply with the New York City Fire Code need not be located on the outer perimeter.
415.6.1 Group H occupancy minimum fire separation distance.
Regardless of any other provisions, buildings containing Group H occupancies shall be set back to the minimum fire separation distance as set forth in Sections 415.6.1.1 through 415.6.1.4. Distances shall be measured from the walls enclosing the occupancy to lot lines, including those on a public way. Distances to assumed lot lines established for the purpose of determining exterior wall and opening protection are not to be used to establish the minimum fire separation distance for buildings on sites where explosives are manufactured or used when separation is provided in accordance with the quantity distance tables specified for explosive materials in the New York City Fire Code.
415.6.1.1 Group H-1.
Group H-1 occupancies shall be set back not less than 75 feet (22 860 mm) and not less than required by the New York City Fire Code.
Exceptions:
1. Fireworks manufacturing buildings separated in accordance with NFPA 1124.
2. Buildings containing the following materials when separated in accordance with Table 415.6.1 of this code:
2.1. Organic peroxides, unclassified detonable.
2.2. Unstable reactive materials Class 4.
2.3. Unstable reactive materials, Class 3 detonable.
2.4. Detonable pyrophoric materials.
415.6.1.2 Group H-2.
Group H-2 occupancies shall be set back not less than 30 feet (9144 mm) where the area of the occupancy exceeds 1,000 square feet (93 m
2
), and it is not required to be located in a detached building.
415.6.1.3 Groups H-2 and H-3.
Group H-2 and H-3 occupancies shall be set back not less than 50 feet (15 240 mm) where a detached building is required (see Table 415.6.2).
415.6.1.4 Explosive materials.
Group H-2 and H-3 occupancies containing materials with explosive characteristics shall be separated as required by the New York City Fire Code. Where separations are not specified, the distances required shall not be less than the distances required by Table 415.6.1.
Quantity of Explosives a, d | Minimum Distance (feet) | |||
Lot lines b and inhabited buildings c | Separation of magazines e | |||
Pounds over | Pounds not over | Barricaded | Unbarricaded | |
Quantity of Explosives a, d | Minimum Distance (feet) | |||
Lot lines b and inhabited buildings c | Separation of magazines e | |||
Pounds over | Pounds not over | Barricaded | Unbarricaded | |
0 | 5 | 70 | 140 | 12 |
5 | 10 | 90 | 180 | 16 |
10 | 20 | 110 | 220 | 20 |
20 | 30 | 125 | 250 | 22 |
30 | 40 | 140 | 280 | 24 |
40 | 50 | 150 | 300 | 28 |
50 | 75 | 170 | 340 | 30 |
75 | 100 | 190 | 380 | 32 |
100 | 125 | 200 | 400 | 36 |
125 | 150 | 215 | 430 | 38 |
150 | 200 | 235 | 470 | 42 |
200 | 250 | 255 | 510 | 46 |
250 | 300 | 270 | 540 | 48 |
300 | 400 | 295 | 590 | 54 |
400 | 500 | 320 | 640 | 58 |
500 | 600 | 340 | 680 | 62 |
600 | 700 | 355 | 710 | 64 |
700 | 800 | 375 | 750 | 66 |
800 | 900 | 390 | 780 | 70 |
900 | 1,000 | 400 | 800 | 72 |
For SI: 1 pound = 0.454 kg, 1 foot = 304.8 mm.
a. The number of pounds of explosives listed is the number of pounds of trinitrotoluene (TNT) or the equivalent pounds of other explosive.
b. The distance listed is the distance to lot line, including lot lines at public ways.
c. For the purpose of this table, an inhabited building is any building on the same tax lot that is regularly occupied by people. Where two or more buildings containing explosives or magazines are located on the tax lot, each building or magazine shall comply with the minimum distances specified from inhabited buildings and, in addition, they shall be separated from each other by not less than the distance shown for "Separation of magazines", except that the quantity of explosive materials contained in detonator buildings or magazines shall govern in regard to the spacing of said detonator buildings or magazines from buildings or magazines containing other explosive materials. If any two or more buildings or magazines are separated from each other by less than the specified "Separation of magazines" distances, then such two or more buildings or magazines, as a group, shall be considered as one building or magazine, and the total quantity of explosive materials stored in such group shall be treated as if the explosive were in a single building or magazine located on the site of any building or magazine of the group, and shall comply with the minimum distance specified from other magazines or inhabited buildings.
d. Storage of explosives in a quantity exceeding 1,000 pounds in one magazine is prohibited.
e. Magazine is a building or structure, other than an operating building, approved for storage of explosive materials. Portable or mobile magazines not exceeding 120 square feet (11 m
2
) in area need not comply with the requirements of this code, however, all magazines shall comply with the New York City Fire Code.
f. This table shall not apply to the temporary storage incidental to transportation.
Loading...