1, the power pipeline in the process of transmission, heat is easy to produce sparks, and the gas pipeline centralized setting is easy to explode. 2. The toxic gas leaking from the gas pipeline will cause harm to the inspection and maintenance personnel in the comprehensive pipe gallery and cause poisoning. (3) When the volume of combustible gas mixed with air reaches a certain extent, it will catch fire and cause an explosion when it encounters an open flame or an electric spark. The main gases produced by the underground integrated pipe gallery are hydrogen sulfide and methane, which seriously harm human health. The project provides the ASD5300C, ASD5300 gas detector and ASD5100 alarm controller.



