GB 5959.4-1992 focuses on the safety specifications of resistance furnaces in electric heating equipment. The standard specifies the general safety requirements for resistance furnaces in design, manufacture, installation and use. It covers electrical insulation, grounding protection, overheating protection, mechanical structure safety, etc. It aims to prevent the risks of electric shock, fire and mechanical injury that may occur during the operation of resistance furnaces, ensure the safety of operators, ensure the stable and reliable operation of resistance furnaces, provide an important basis for the safe production of related enterprises, and promote the safety level of the resistance furnace industry.