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Message from discussion Subpanel bonding (3-phase mains) question
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PeterD  
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 More options Nov 6 2009, 2:08 pm
Newsgroups: sci.electronics.design, sci.electronics.misc, rec.crafts.metalworking
From: PeterD <pet...@hipson.net>
Date: Fri, 06 Nov 2009 08:08:38 -0500
Local: Fri, Nov 6 2009 2:08 pm
Subject: Re: Subpanel bonding (3-phase mains) question
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On Thu, 5 Nov 2009 23:02:25 -0800, Mike Cook <mc...@NOTyahoo.com>
wrote:

>Is it never allowed (US National Electrical Code) to bond the ground bus bar
>to the neutral bus bar?

>I opened a subpanel and found that both the ground bus bar and cabinet were
>bonded to the neutral bus bar.

>Is this allowed under any circumstance?

>This is a "Y" 208/120 configuration utilizing 5 conductors in an industrial
>building.

>Thanks.

When was it installed, and have you read the revelant sections of the
NEC?

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