This standard specifies the product model, performance parameters, technical requirements, test items, inspection rules, marking, packaging, transportation and storage of salt bath furnace transformers. This standard is applicable to salt bath furnaces with rated voltage of 380V, rated capacity of 200kVA and below, rated frequency of 50Hz, single-phase or three-phase transformers. This standard can be partially quoted for low-voltage and high-current transformers with operating voltages below 500V and similar to salt bath furnace transformers.