Cal. Code Regs. Tit. 8, § 6115 - Fire Prevention
(a)
Tunnels shall be provided with a 2-inch minimum diameter water line extending
into the working chamber and to within 100 feet of the working face. Such line
shall have hose outlets with 100 feet of fire hose properly attached and
maintained as follows: one at the working face; one immediately inside the
bulkhead of the working chamber; and one immediately outside such bulkhead. In
addition, hose outlets shall be provided at 200-foot intervals throughout the
length of the tunnel and 100 feet of fire hose shall be attached to the outlet
nearest to any location where flammable material is being kept or stored or
where any flame is being used.
(b)
Fire hose shall be at least 1 ½ inches in nominal diameter. Water
pressure shall at all times be adequate for efficient operation of the type of
nozzle used and the water supply shall be such as to ensure an uninterrupted
flow. Fire hose, when not in use, shall be located or guarded to prevent injury
thereto.
(c) In addition to fire
hose protection required by this section, on every floor of every building not
under compressed air, but used in connection with the compressed air work,
there shall be provided at least one approved extinguisher of the proper type
for the hazard involved. At least two approved fire extinguishers shall be
provided in the working chamber as follows: one at the working face and one
immediately inside the bulkhead (pressure side). Extinguishers in the working
chamber shall use water as the primary extinguishing agent and shall not use
any extinguishing agent which could be harmful to the employees in the working
chamber. The fire extinguisher shall be protected from damage.
(d) No persons shall be permitted to smoke or
carry smoking materials in compressed air.
(e) While welding or flame cutting is being
done in compressed air, a watch person with a fire hose or approved
extinguisher shall stand by until such operation is completed.
(f) Highly combustible materials shall not be
used or stored in the working chamber. Wood, paper, and similar combustible
material shall not be used in the working chamber in quantities which could
cause a fire hazard. The compressor building shall be constructed of
noncombustible materials.
(g) Air
locks shall be equipped with a manual-type fire extinguisher system that can be
activated inside the air lock and also by the outside lock attendant. In
addition, a fire hose and portable fire extinguisher shall be provided inside
and outside the air lock. The portable fire extinguisher shall be the dry
chemical type.
(h) Equipment,
fixtures, and furniture in air locks and special decompression chambers shall
be constructed of noncombustible materials. Bedding and other furnishings shall
be chemically treated so as to be fire-resistant.
(i) Oxygen Safety.
(1) Equipment used with oxygen or mixtures
containing over forty percent (40%) by volume oxygen shall be designed and
maintained for oxygen service.
(2)
Components exposed to oxygen or mixtures containing over forty percent (40%) by
volume oxygen shall be free of oil, grease, and combustible
materials.
(3) Oxygen systems over
125 psig shall have slow-opening shut-off valves.
(4) Oxygen cylinders, piping, valves, gauges,
regulators and other accessories shall be protected against physical
damage.
Notes
2. New subsections (i)-(i)(4) filed 3-10-2010; operative 4-9-2010 (Register 2010, No. 11).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. New subsections (i)-(i)(4) filed 3-10-2010; operative 4-9-2010 (Register 2010, No. 11).
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