DL/T 1177-2012 in English

Scope

This standard stipulates the work points and key supervision contents of the entire process of technical supervision of 1000kV AC power transmission and transformation equipment in the equipment selection, design and manufacturing, installation and commissioning, operation and maintenance, overhaul testing and technical transformation stages. This standard applies to transformers, reactors, gas-insulated metal-enclosed switchgear, transformers, isolating and earthing switches, metal oxide surge arresters, bushings, insulators, earthing devices, relay protection and safety automatic devices and secondary circuit wiring (protection device for short), monitoring system, electric energy metering device and other 1000kV AC power transmission and transformation equipment.