Home / Standards / GB/T 22709-2008 GB/T 22709-2008 Active Residual strength of string insulator units of glass or ceramic material for overhead lines after mechanical damage of the dielectric 架空线路玻璃或瓷绝缘子串元件绝缘体机械破损后的残余强度 Standard Type GBT ICS 29.080.10 CCS K48 Status 现行 Issue Date 2008-12-30 Implementation 2009-10-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A