交流电气装置的接地VIP免费

交流电气装置的接地DL/T 621—1997Grounding for AC electrical installations中华人民共和国电力工业部 1997-09-02 批准1998-01-01 实施1 范围..........................................................................................................................................................................22 名词术语................................................................................................................................................................23 A 类电气装置接地的一般规定.............................................................................................................................34 A 类电气装置保护接地的范围.............................................................................................................................45 A 类电气装置的接地电阻.....................................................................................................................................55.1 发电厂、变电所电气装置的接地电阻......................................................................................................55.2 架空线路的接地电阻...............................................................................................................................65.3 配电电气装置的接地电阻.......................................................................................................................66 A 类电气装置的接地装置.....................................................................................................................................76.1 接地装置的一般规定...............................................................................................................................76.2 发电厂、变电所电气装置的接地装置...................................................................................................86.3 架空线路杆塔的接地装置.....................................................................................................................106.4 配...