GAS CONDUIT FACILITY

摘要

PROBLEM TO BE SOLVED: To immediately detect gas leak from a gas conduit contained and installed in a rigid and incombustible or fire-resistant protection pipe when installing together with electric power facilities such as power cable. SOLUTION: The gas conduit 1 for combustible gas is contained in the incombustible or fire-resistant and airtight protection pipe 2 and installed together with the power cable in an underground tunnel, etc. A gas detector 6 is fixed on a pipe connecting part 5 of the protection pipe 2 communicating with the inside of the protection pipe 2.