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[AMPS] grounds

To: <amps@contesting.com>
Subject: [AMPS] grounds
From: 2@vc.net (measures)
Date: Fri, 17 Nov 2000 21:33:14 -0800
>
>In the US power distribution system, I understand that the neutral is 
>connected
>to ground at the point of entry to the property's distribution board. 

This is true.  Ground is from a local ground rod.  

>Do the
>electricity company provide a ground wire in parallel with the neutral, 

Not on my service box.  

>or is
>the ground purely a local ground from a ground rod or similar?
>
>Is their any fault detection on that ground connection so that a ruptured
>neutral won't lead to the return current being through that ground 
>connection?

Not on my service box.  GFI and RF do get on well.  My guess is that GFI 
designers probably don't know what RF is.  
>
>Are cables witha metallic sheath used in the US, with the sheath being the
>neutral? 

None that I have seen, Peter.  

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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