Amps
[Top] [All Lists]

Re: [Amps] 220V wiring: Was Question about safety ground connection

To: g3rzp@g3rzp.wanadoo.co.uk
Subject: Re: [Amps] 220V wiring: Was Question about safety ground connection
From: R.Measures <r@somis.org>
Date: Thu, 17 Nov 2005 04:05:59 -0800
List-post: <mailto:amps@contesting.com>
On Nov 17, 2005, at 1:08 AM, Peter Chadwick wrote:

> Rich said:
>
> ?
>
>> >Bonding the enclosure to the neutral wire insures that the enclosure
>> can not become a shock hazard if the safety-ground wire is severed by
>> an anomaly.<
>
> But an open neutral in such a case leaves the enclosure at some 
> undetermined voltage above ground. Depending on how good the neutral 
> grounding is at the service entrance, an open neutral in the feed to 
> the property can float enclosures above ground.

Are you advocating a second grounding/a.k.a. earthing/ of the neutral 
at the receptacle?

> It comes down to the probability of opening a safety ground or a 
> neutral, and if they run together, the probability is that severing 
> one severs both.

Perhaps a third safety-ground wire might be advisable?
>
> 73
>
> ?
>
> Peter SM/G3RZP
>
> ?

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>