This standard specifies the sampling, inspection and determination of inspection results for DC power supply equipment in import and export power systems. This standard applies to DC power equipment in power systems. This equipment is used in DC power systems in power plants, substations and other electrical equipment, safety automatic monitoring devices and communication circuits. It is used as DC power supply equipment for control, signaling, communication, protection and DC accident lighting, power devices, etc. This standard also applies to DC power equipment in other industries, such as in-plant substations in metallurgy, chemical industry, railway and other systems.
SN/T 1412-2004 history
2004SN/T 1412-2004 Rules for the inspection of D.C. power supply equipment for import and export