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post #31 of 35 Old 11-26-2013
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Re: Air Conditioner Hazard Potential

All I'm seeing is lines drawn in the grou... sand

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post #32 of 35 Old 11-26-2013
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Re: Air Conditioner Hazard Potential

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Originally Posted by SchockT View Post

Either that or the unit isn't grounded properly.
With proper AC grounding this type of short should have tripped OCP..... The sad reality is that the case grounds are very often over looked and omitted. I see this ALL THE TIME with battery chargers, inverters and inverter chargers.. I also see it with AC and heating systems..

On-board AC wiring and grounding are also very often incorrectly installed. The sad reality is that we can't always count on the green grounding wire to get all the way back to land to trip OCP. The AC green to DC Earth/bonding is critically important and this is a potential example of why.....

A "short" like this, if this is what actually happened, should have tripped OCP in fractions of a second....
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Last edited by Maine Sail; 11-26-2013 at 10:33 AM.
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post #33 of 35 Old 11-26-2013
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Re: Air Conditioner Hazard Potential

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Originally Posted by Maine Sail View Post
With proper AC grounding this type of short should have tripped OCP..... The sad reality is that the case grounds are very often over looked and omitted. I see this ALL THE TIME with battery chargers, inverters and inverter chargers.. I also see it with AC and heating systems..

On-board AC wiring and grounding are also very often incorrectly installed. The sad reality is that we can't always count on the green grounding wire to get all the way back to land to trip OCP. The AC green to DC Earth/bonding is critically important and this is a potential example of why.....

A "short" like this, if this is what actually happened, should have tripped OCP in fractions of a second....
The fact that it actually didn't trip to me is a further indication that the problem was in the control circuit which is not grounded and therefore will not cause a short to ground.

I would be greatly concerned with any 120 volt installation that was not properly bonded back to the source of power because as I indicated earlier it truly does represent a serious potential hazard.
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post #34 of 35 Old 11-26-2013
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Re: Air Conditioner Hazard Potential

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I would be greatly concerned with any 120 volt installation that was not properly bonded back to the source of power because as I indicated earlier it truly does represent a serious potential hazard.
You would be greatly concerned with about 80% of the boats out there then.....
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post #35 of 35 Old 12-22-2013
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Re: Air Conditioner Hazard Potential

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Originally Posted by Maine Sail View Post
You would be greatly concerned with about 80% of the boats out there then.....
Only 80%

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