1. Areas where the sprinkler system is impaired.
2. Areas where there exists the potential of an explosive atmosphere, such as locations where flammable gases, liquids or vapors are present.
3. Areas with readily ignitable materials, such as storage of large quantities of bulk sulfur, baled paper, cotton, lint, dust or loose combustible materials.
4. On board marine vessels or watercraft at dock under construction or repair.
HOT WORK. Cutting, welding, thermit welding, brazing, soldering, grinding, thermal spraying, thawing pipe, cadwelding, installation of torch-applied roof systems or any other similar operation or activity.
HOT WORK AREA. The area exposed to sparks, hot slag, radiant heat, or convective heat as a result of hot work.
HOT WORK EQUIPMENT. Electric or gas welding or cutting equipment used for hot work.
HOT WORK PROGRAM. A program, implemented by a responsible person designated by the owner of a building or structure in or on which hot work is being performed, to oversee and issue authorizations for such hot work for the purpose of preventing fire and fire spread.
HOT WORK PROGRAM AUTHORIZATIONS. Authorizations issued by the responsible person under a hot work program allowing welding or other hot work to be performed at the premises.
RESPONSIBLE PERSON. A person trained in the fire safety hazards associated with hot work and in the necessary and appropriate measures to minimize those hazards, who is designated by the owner of a premises to authorize the performance of hot work at the premises.
TORCH-APPLIED ROOF SYSTEM. Bituminous roofing systems using membranes that are adhered by heating with a torch and melting asphalt back coating instead of mopping hot asphalt for adhesion.
Exception: Torch operations using oxygen and piped natural gas for manufacturing jewelry or in a dental laboratory may be performed under the personal supervision of a certificate of fitness holder, who shall be responsible to regulate the pressure and flow of oxygen and natural gas to each torch.
HOT WORK IN PROGRESS
This section has been clarified by a buildings bulletin issued by the Department of Buildings.
Learn more in the Linked Resources panel on the right.
1. Construction sites.
2. On any rooftop, or in connection with any torch-applied roofing system operation.
3. In any building or structure, when the torch operation is conducted by a person holding a citywide permit for torch operations.
1. A fire watch is not required on the floors or levels below a torch operation on a construction site when:
1.1. the torch operation is not being conducted at or near the edge of an unenclosed floor of a building;
1.2. the floor upon which the torch operation is being conducted is of noncombustible construction;
1.3. there are no floor or exterior building openings within 35 feet (10 668 mm) of the torch operation; and
1.4. prior to commencement of the torch operation, the fire safety manager or responsible person conducts an inspection and takes the precautions required pursuant to FC2604.2.7.1.2.
2. Notwithstanding the foregoing exception, if sparks or slag generated by the torch operation are observed to extend beyond 35 feet (10 668 mm), thereby potentially exposing lower floors or levels, the torch operation shall be immediately discontinued, and the floors or levels below shall be inspected for any fire condition. If there is any potential exposure to combustible surfaces or materials on the floors below from such sparks and slag, noncombustible barriers shall be provided and any other necessary or appropriate precautions shall be taken. If such barriers and precautions fail to block the passage of sparks and slag, a fire watch shall be established on the floors or levels below.
1. The hot work equipment is in good working order.
2. The hot work area is clear of combustibles and flammable solids or that such materials present in the area are protected in accordance with FC2604.1.1.
3. Exposed construction is of noncombustible materials or, if combustible, is protected.
4. Openings are protected.
5. Hot work area floors are clear of combustible waste accumulation.
7. Fire watch personnel, where required, are assigned.
8. Approved actions have been taken to prevent accidental activation of fire extinguishing systems and detection equipment in accordance with FC 2604.1.8 and 2604.1.9.
9. Portable fire extinguishers and fire hoses (where provided) are operable and available.
10. All persons performing hot work possess certificates of fitness, where such certificates are required.
11. All persons performing hot work requiring a permit possess a site-specific permit or citywide permit, authorizing such work.
1. Carts shall be designed and used in accordance with FC2703.10.3.
2. Container valves shall have a fixed hand wheel, or other approved means by which the flow of gas may be immediately shut down during hot work operations.
3. Container valves shall be closed at the end of each workday and whenever work is discontinued or the cart moved.
4. Container valve outlet connections shall conform to the requirements of CGA V-1.
5. Separation of the cart from the hot work operation shall be maintained in accordance with FC2605.5, or fire-resistant shields shall be provided.
6. A separation distance of 20 feet (6096 mm) shall be maintained between such carts.
1. Aboveground piping systems shall be marked in accordance with ASME A13.1.
2. Station outlets shall be marked to indicate their intended usage.
3. Signs shall be posted, indicating clearly the location and identity of section shutoff valves.
DO NOT CONNECT HIGH-PRESSURE CONTAINERS
MAXIMUM PRESSURE 250 PSIG