Will the wrench screw produce static electricity or sparks?
Gas equipment construction, it is best to close the valve, exhaust gas, step-down. If the hot work should also be nitrogen replacement.
Maintenance of gas pipelines, if the use of steel wrenches in operation, it is easy to wrench and metal impact, there may be sparks. A copper wrench shall be used for general gas equipment overhaul.
Where there is a gas leak, no communication facilities such as mobile phones are prohibited, and chemical fiber materials shall not be used in the work clothes.For reference.
