Well drilling site safety circuit

The utility model relates to the explosion-proof circuit technique in a petroleum natural gas well drilling site, which comprises a generator set, an electric appliance control center, a circuit connector, a plug-in type cable, a cable groove, every electric appliance equipment, etc., wherein, the generator set is connected with the electric appliance control center through a sheath cable, so that a well drilling power supply control center is formed. The circuit connector is connected with the electric appliance control center through adopting the plug-in type cable which is arranged in the cable groove, and the circuit connector is connected with different electric appliance equipment, and the electricity for lighting by adopting the plug-in type cable. The electric appliance control center can intensively control various electric appliances, and the connection of electric lines adopts a safe connecting mode of an explosion-proof cable plug-in and a transition box. The transmission cables are installed by totally adopting the special cable grooves. The site circuits totally adopt the explosion-proof, water-proof, fire-proof, and shock-proof designs, the feasibility and the normalization of the circuits can be greatly improved, and the utility model provides necessary insurance for high-speed drilling.