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WELDING, CUTTING, AND BRAZING |
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General Requirements - Fire Prevention and Protection |
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When suspending gas welding
or cutting operations, eliminate the possibility of gas escaping through the nozzle by
closing the torch valves. The gas supply to the torch must be positively shut off at some
point outside the confined area whenever the torch is not to be used for a substantial
period of time, such as during lunch hour or overnight. Where practicable, the torch and
hose shall also be removed from the confined space. Where welders must enter a confined space through a manhole or other small opening, means shall be provided for quickly removing them in case of emergency. An attendant with a pre-planned rescue procedure shall be stationed outside to observe the welder at all times and shall be capable of putting rescue operations into effect. |
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