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Old 12-08-2019, 10:25 AM   #1
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Portable gen floating ground

Awhile back I read something about a portable gen having a floating ground. Just what is it and is it safe for me to run my class A DP?
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Old 12-08-2019, 11:07 AM   #2
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Most RVs with a power tester will detect the floating neutral issue common with generators and shut down the power before reaching the RV.

Use this: Floating neutral plug
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Old 12-08-2019, 11:07 AM   #3
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Its actually a floating neutral and safe to use.

If you have a surge protector, you may need a Edison plug to bond the neutral and ground at the generator.

Some reading on the subject.

https://generatorbible.com/blog/bond...ating-neutral/

https://ricksdiy.com/generators/port...-honda-yamaha/
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Old 12-08-2019, 07:06 PM   #4
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What twinboat says.


Yes it is safe and UL approved, but RVs that have powerline monitors will balk at the Open Ground, so you may need to add the Neutral Bonding plug described in those articles twinboat referenced.
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Old 12-08-2019, 08:26 PM   #5
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A basic understanding will give you the ability to always be able to discern bonded or unbonded on the ground/neutral. Electricity always wants to return to the source. So it's never really a ground, it's a way back to the source. In an rv unconnected to shore power the generator is the source. You only want things bonded at one place to ground. If you have your gen unbonded and step off the coach still hanging on you can become the path it seeks. That is also the reason they want one grounding rod at the main panel in a house and no more. A second rod can potentially send the current through a wet yard, using you as a current path walking across it, trying to get back to the source. In that case the transformer at the pole. Once you stop thinking of the earth as absorbing the current, and instead think of it as a conductor back to the source it makes more sense.
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Old 12-08-2019, 08:37 PM   #6
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Quote:
Originally Posted by shootist View Post
A basic understanding will give you the ability to always be able to discern bonded or unbonded on the ground/neutral. Electricity always wants to return to the source. So it's never really a ground, it's a way back to the source. In an rv unconnected to shore power the generator is the source. You only want things bonded at one place to ground. If you have your gen unbonded and step off the coach still hanging on you can become the path it seeks. That is also the reason they want one grounding rod at the main panel in a house and no more. A second rod can potentially send the current through a wet yard, using you as a current path walking across it, trying to get back to the source. In that case the transformer at the pole. Once you stop thinking of the earth as absorbing the current, and instead think of it as a conductor back to the source it makes more sense.
In Europe it's not called ground, instead it's called Earth.
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Old 12-08-2019, 09:02 PM   #7
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Quote:
Originally Posted by twinboat View Post
Its actually a floating neutral and safe to use.

If you have a surge protector, you may need a Edison plug to bond the neutral and ground at the generator.

Some reading on the subject.

https://generatorbible.com/blog/bond...ating-neutral/

https://ricksdiy.com/generators/port...-honda-yamaha/



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easy fix to make the portable work with your rig.
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Old 12-10-2019, 11:09 AM   #8
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ground plug

It's simple to make a ground plug.






Jumper wire from neutral to ground is all that's needed.

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