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Nasir
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Joined: 21-June 07
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Last Seen: 12th December 2007 - 05:12 AM
Local Time: Nov 21 2008, 06:27 PM
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Nasir

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18 Oct 2007
I work in oil refinery, Can any body tell me about the earthing resistance. The tranformers, motors and every electrical equipment is earthed for protection purposes. But I just wana ask that what is the standard value(according to NEC or IEC or equivalent) for earthing resistance. The standard use here is 10 ohm but we don't know which standard body recommends this value.



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