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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 #323111 is a reply to message #323106] Fri, 01 September 2017 15:06 Go to previous messageGo to previous message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma:
Senior Member
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.

If a GFCI outlet is tripping, there is leakage from the neutral to the
safety ground--the return current on the neutral is not matching the
supplied current on the hot.

The Onan is bonded (neutral tied to ground) because it is a primary
source--a main panel. When running on the Onan, the breaker box in the
coach is still a subpanel.

The correct solution is a transfer capability that switches neutral as well
as hot. That includes either the "manual" transfer--moving the plug from
the Onan receptacle (which carries neutral aswellashot) to the campground
receptacle--or an automatic switch that switches neutral along with hot.
The neutral inside the coach should not be grounded or tied together around
the Onan receptacle.

Rick "caution advised" Denney


On Fri, Sep 1, 2017 at 1:56 PM Mike Hamm wrote:

> Easy solution don't blue into a gfi outlet. Lots of neutral to ground
> connections in the GMC as they should be.
> Neutral and ground are bonded in the breaker box.
> --
> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>
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Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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