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Date:         Wed, 7 Jun 2006 19:44:49 -0400
Reply-To:     shawn feller <feller@CARBONCOW.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         shawn feller <feller@CARBONCOW.COM>
Subject:      Re: grounding for shore power
Comments: To: Richard A Jones <jones@COLORADO.EDU>
In-Reply-To:  <4487457C.8090808@colorado.edu>
Content-Type: text/plain; charset="us-ascii"

Richard,

Are most "shore power" situations behind GFIs? I only see traditional breakers where I go on land or water. That is why I put a GFS in my westy!

Maybe she should do that, cheaper and easier to deal with.

Shawn

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Richard A Jones Sent: Wednesday, June 07, 2006 5:31 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: grounding for shore power

Joy, my syncro came in your (new) state. I just make sure I plug the shore power cord in in the correct orientation. (Ground down) Then, all will be well if you use the fridge or plug two- prong gizmos into the interior receptacle.

If the shore power cord is plugged into a ground- fault outlet, which it would in all modern wiring sitautions, then you are very safe, since the ground-fault compares the positive and neutral and doesn't look at the ground, and is much more sensitive than a circuit breaker. Then even a three prong gizmo would be safe unless it was a surge protector trying to dump a spike to the ground.

The code today allows three prong receptacles to be installed in a house with two-wire wiring if they are "behind" a ground-fault receptacle. Again, the situation that is not protected is a protector that wants to dump to ground rather than shut off.

Richard A Jones Boulder, Colorado

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