Wiring problems of explosion-proof electrical wiring

Wiring problems of explosion-proof electrical wiring In an explosive environment, the installation location, laying method, wire material, and connection method of electrical wiring should be compatible with the regional hazard level, and the following requirements should be met. (1) Location. The electrical wiring should be laid in a place where the risk of explosion is small or the source of release is far away. The electrical wiring should be along the external explosion-proof electrical wiring of a building with explosion hazard. In an explosive environment, the installation position, laying method, wire material, connection method of the electrical wiring should be compatible with the regional hazard level and should meet the requirements. The following requirements. (1) Location. The electrical wiring should be laid in a place where the risk of explosion is small or the source of release is far away. The electrical wiring should be laid along the outer wall of the building with explosion hazard; when the explosive gas or vapor is heavier than air, the electrical wiring of the testing instrument should be laid at a high place, and the cable should be laid directly in the ground or laid in the cable trench filled with sand; When the explosive gas or vapor is lighter than air, the electrical circuit should be laid at a low place, and the cable should be laid in a cable trench. Overhead lines below 10kV and below 10kV shall not cross the explosive environment; when the overhead lines are adjacent to the explosive environment, the distance between them shall not be less than 1.5 times the height of the tower. (2) Wiring method and wiring method. Explosive hazardous environment mainly adopts explosion-proof steel through measuring instrument pipe wiring and cable wiring. Try to use thick-walled pipes, and some may do a pressure test