Artificial lighting for use in connection with
searching for leaks or work in gaseous atmospheres shall be restricted
to approved electric hand flashlights or other electric lights controlled
only by switches located outside the gassy area. Every workman shall
be equipped with an approved electric hand flashlight.
When necessary to turn gas off, a workman shall
use the meter cock or a line cock which affects only part of the piping
of a single customer.
A. Before gas is shut off from any line or piping, all users or their responsible representatives whose service is affected shall (except in emergencies) be advised that the gas is to be shut off and instructed to shut off all appliance cocks and not to open any of them again until notified that service has been restored, in accordance with the provisions of §
293-111A and
B above.
B. If a meter cock is found shut off, unless the workman
himself has shut it off or knows that it is shut off by the customer
to prevent leakage, and the cause of the leakage has been repaired
by the workman, he shall not turn the gas on.
It shall be the duty of any workman to turn
the gas off from any equipment, pipe or piping system and, regardless
of the wishes of the user thereof, to leave the gas turned off until
the cause for interrupting the supply has been removed in any of the
following cases:
A. If ordered to do so by the Department.
B. If any leakage of gas is noted.
C. If there is any condition which threatens interruption
of gas supply which may cause burner flame to be extinguished or otherwise
prove dangerous.
D. If an installation is found of some gas-fired equipment
such as to cause a serious personal or property hazard.