WAC 296-36-190
Fire prevention and firefighting. (1)
General. Every building and every flammable structure above
ground and all places underground shall be within easy range
of firefighting equipment, which shall at all times be
maintained in proper working conditions and ready for use.
(2) Smoking. No person shall smoke or carry lighted
smoking materials in compressed air. No matches, mechanical
or chemical igniters will be permitted in the working chamber
except those necessary for welding or flame cutting
operations.
(3) Welding or flame cutting. While welding or flame
cutting is being done in compressed air, a watchman with a
fire hose or approved extinguisher shall stand by until such
operation is completed. Acetylene shall not be used in
compressed air at acetylene pressure exceeding 15 pounds per
square inch gage, or 30 pounds per square inch absolute.
(4) Fire hose. Fire hose shall be at least 1-1/2 inches
in nominal diameter; the 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 insure an
uninterrupted flow. Fire hose when not in use shall be so
located or guarded to prevent injury thereto.
Every power house, compressor house and every building
housing ventilating equipment shall be provided with at least
one hose connection in the water line with the fire hose
connected thereto. A fire hose shall be maintained within
easy reach of structures of wood over or near shafts.
(5) Shafts and caissons. Every shaft and every caisson
containing flammable material of any kind, either above or
below ground, shall be provided with a water line and a fire
hose connected thereto, so arranged that all points of the
shaft or caisson are within easy reach of the hose stream.
(6) Tunnels. Every tunnel shall be provided with a water
line extending into the working chamber and to within 100 feet
of the working face. Such lines shall have hose outlets with
100 feet of fire hose properly attached and maintained as
follows: One at the working face, one immediately inside of
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.
(7) Fire extinguishers. In addition to required fire
hose protection, on every floor of every building used in
connection with compressed air work, there shall be provided
at least one extinguisher of adequate size approved for the
class of hazard involved, except that extinguishers containing
carbon tetrachloride or methyl bromide shall not be used. Extinguishers shall be so located as to be readily available
and protected from damage.
Note:
For additional requirements relating to portable fire extinguishers see WAC 296-800-300.