lesonlee 发表于 2014-10-2 09:43:15

IEEE Std 837-2002 IEEE Standard for Qualifying Permanent Connections Used ...

"IEEE Std 837-2002 IEEE Standard for Qualifying Permanent Connections Used in Substation Grounding"
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admin 发表于 2014-10-2 18:28:27

谢谢您的分享，金币已奖励

longweixu 发表于 2016-3-15 13:39:35


谢谢您的分享，金币已奖励

temptempzy 发表于 2017-7-12 20:04:43

学习一下："IEEE Std 837-2002 IEEE Standard for Qualifying Permanent Connections Used in Substation Grounding
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