Dual alternator, Lithium battery/AC setup (no generator needed) - Page 8 - Ford Transit USA Forum
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post #71 of 81 (permalink) Old 05-10-2019, 07:55:AM
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Originally Posted by Travlin View Post
If the grounding conductor is not intact or of low-impedance, the GFCI may not trip until a person provides a path. In this case, the person will receive a shock
That says the same thing I said, That GFCI is unreliable without a campground shorepower earth ground connection.

You are protected in campgrounds but you are unprotected anywhere else you go. So you should not have blind faith that GFCI will save you when running on inverter power alone.

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post #72 of 81 (permalink) Old 05-10-2019, 08:05:AM
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Originally Posted by ranxerox View Post
That says the same thing I said, That GFCI is unreliable without a campground shorepower earth ground connection.

You are protected in campgrounds but you are unprotected anywhere else you go. So you should not have blind faith that GFCI will save you when running on inverter power alone.
There is nothing unreliable about it. An ungrounded GFCI outlet can still save your life.

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post #73 of 81 (permalink) Old 05-10-2019, 10:20:AM
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Originally Posted by ranxerox View Post
That says the same thing I said, That GFCI is unreliable without a campground shorepower earth ground connection.

You are protected in campgrounds but you are unprotected anywhere else you go. So you should not have blind faith that GFCI will save you when running on inverter power alone.
Where, exactly, do you think it says that it is unreliable or that you are unprotected?

Here's what I read:

"If the grounding conductor is not intact or of low-impedance, the GFCI may not trip until a person provides a path. In this case, the person will receive a shock, but the GFCI should trip so quickly that the shock will not be harmful."

Kinda sounds like you ARE protected, even if the thing plugged in doesn't have a ground connection on the plug, or, if the source ground is faulty.

GFCI=Ground Fault Circuit Interruption. The sole purpose of the device is to detect a ground fault and interrupt the circuit.

A Ground Fault is, specifically, the instance of the Hot or Neutral wire sending current through some other path. This is what creates the detectable difference between current on those lines when those two paths are compared by the GFCI. There would be no reason for it to trip unless current is taking a different path. This may result in feeling a shock if that path is through a person, and, with GFCI installed correctly that shock should not be harmful.

Is there something other than this that you are expecting GFCI to do?

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post #74 of 81 (permalink) Old 05-10-2019, 01:00:PM
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There is nothing unreliable about it. An ungrounded GFCI outlet can still save your life.
If it makes you feel better, Keep believing that.

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post #75 of 81 (permalink) Old 05-10-2019, 01:27:PM
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Originally Posted by ranxerox View Post
If it makes you feel better, Keep believing that.
Still waiting on you to offer up anything that clearly indicates a Shore power ground is required for GFCI to work in a van providing AC via inverter.

Bueller?

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post #76 of 81 (permalink) Old 05-10-2019, 05:21:PM
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With GFCI outlets on the inverter, is there still a need for at least one on the AC circuit?
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post #77 of 81 (permalink) Old 05-10-2019, 06:10:PM
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Originally Posted by Jacek View Post
With GFCI outlets on the inverter, is there still a need for at least one on the AC circuit?
That will depend upon how the manufacturer wired the AC outputs in their inverter. If the answer isn't found in the documentation that came with the inverter check with their support department for the definitive answer.

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post #78 of 81 (permalink) Old 05-10-2019, 06:55:PM
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Dual alternator, Lithium battery/AC setup (no generator needed)

Quote:
Originally Posted by Jacek View Post
With GFCI outlets on the inverter, is there still a need for at least one on the AC circuit?


If your inverter is hooked up, you could try tripping the GFCI and see if the hardwired output still works. This could give you an idea of how it is wired but probably best to check the manual or tech support to be sure.

Edit: Sorry, meant tripping as in the test button, not as in testing via a real fault

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post #79 of 81 (permalink) Old 05-10-2019, 09:46:PM
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Y'know how people check 9V batteries? Ya, that's right; with thier tongue. Well, I'm sure that would be a great way to check if the GFCI is working too.
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post #80 of 81 (permalink) Old 05-11-2019, 12:35:AM
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No need to stick your tongue in a GFCI socket to see if it will protect you.

For $5 or so at Home Depot you can get one of these testers and know for sure whether an inverter's output (or any other outlet) is properly wired, and if the GFCI function actually works.

In many ways this is better than reading the manual. The manual might be telling the truth, but there still could be a hardware or wiring problem that might make the GFCI function inoperable. Always better to test, and even better to test regularly.

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