±500kV was doing fixing test
800kV insulator pass the type test in Wuhan
800kV insulator pass the type test in Beijing
1100kv insulator was setup in Wuhan
1100kv insulator was setup in Shenyang
Englishi Version
December, 2008. ±500kV DC ceramic post insulator pass the type test in Beijing power industry quality inspection & test center for electric power equipment & instruments
