论坛 › 美国标准 › ASTM F 2249-2003 用于切断电源线和设备的临时接地跨接装置...
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发表于 2009-12-8 06:18:19
ASTM F 2249-2003 用于切断电源线和设备的临时接地跨接装置...
F2249-03 Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment