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Home » Public Forums » GMCnet » First Post - Wiring 78 Royals Neutral Ground short trips GFI ( Wiring 78 Royals Neutral Ground short trips GFI)
Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI [message #323114 is a reply to message #323111] Fri, 01 September 2017 15:36 Go to previous messageGo to previous message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
Senior Member
Aaron,

I'm with Rick; your solution needn't be too complicated; the Coachmen
should have had separated Neutral and Ground busses.

As for the switching, I'm not sure ordinary 50A Automatic Transfer Switches
will recognize the 30A plugs you intend to use. Further, there complexity
and cost are not justified. Here's DIY version of a 30A transfer I've
used, without attention, for the past 19 years:

http://www.gmcmhphotos.com/photos/g3484-automatic-120-vac-power-source-selection.html

It's simply wired; in fact, mine's in excess space inside my replaced
circuit breaker panel (that's probably not Kosher, 'tho').

Your proposed 2nd A/C solution is certainly workable, but in the past when
working on 30A service coaches, I've just added a separate 15A CB box and
line cord for the 2nd A/C.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc., etc.
www.gmcwipersetc.com

On Fri, Sep 1, 2017 at 4:06 PM, Richard Denney wrote:

> Check your breaker box before being too sure about that. Most RV breaker
> boxes have an insulated neutral bus. And being considered a sub-panel, they
> should. If the coach is grounded to neutral and you have a neutral fault in
> the campground, the body can join the neutral-ground path and become
> electrified.
> ​...
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
 
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