Home / Standards / GB/T 17620-2008 GB/T 17620-2008 Active Live working - Rigid ladders of insulating material 带电作业用绝缘硬梯 Standard Type GBT ICS 13.260 CCS K15 Status 现行 Issue Date 2008-12-30 Implementation 2010-02-01 Responsible Dept 中国电力企业联合会 Drafting Unit N/A