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Old 08-21-2015, 05:17 PM   #1
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Reverse polarity at pedestal

So I get to camp, plug my surge guard into the pedestal, and it comes up "reverse polarity," so of course, it won't allow the power to turn on. The outlet on the other side is the same way, but the one at the next site the other way is OK. So will this damage my camper if I plug in without the surge guard? Is it a matter if hot and neutral being switched, and what can happen if it's used in that condition? TIA...
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Old 08-21-2015, 05:23 PM   #2
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May or may not cause damage, but I for sure would not plug into it. There is definitely a safety issue there.
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Old 08-21-2015, 05:38 PM   #3
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Here some reading on reverse polarity......

The shocking truth about campground electricity
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Old 08-21-2015, 05:50 PM   #4
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Mike Sokol (our RV electrical safety guru), went over this fairly recently in this thread:

Electrified???

P.S. I also recommend reading that entire thread linked above. It could save members problems in the future.
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Old 08-21-2015, 06:08 PM   #5
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Thanks for all the replies.

So after a few minutes of the surge protector being plugged in, the reverse polarity warning decided to stop. I'm guessing there may have been some residual current somewhere in the ground, or pedestal, since we got a lot of rain here last night. Or maybe Venus was in the improper alignment momentarily. It's working fine now. Go figure.
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Old 08-21-2015, 08:10 PM   #6
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Reverse polarity is not something that just goes away; it is a physical wiring issue. Your surge guard may be the problem.
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Old 08-21-2015, 08:19 PM   #7
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Not an electrician so go easy... But could someone plugged on down stream somewhere that is incorrectly wired be back feeding the system? Do not know if this is possible just a curiosity.
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Old 08-21-2015, 08:22 PM   #8
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Quote:
Originally Posted by doc73 View Post
Not an electrician so go easy... But could someone plugged on down stream somewhere that is incorrectly wired be back feeding the system? Do not know if this is possible just a curiosity.
No not possible......
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Old 08-22-2015, 10:11 AM   #9
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Quote:
Originally Posted by Papa GLS View Post
Reverse polarity is not something that just goes away; it is a physical wiring issue. Your surge guard may be the problem.
Or no reverse polarity exists. Reverse polarity is implied when a voltage between neutral wire and safety ground wire is too large. How large? Well, that voltage difference may occur when a neutral wire is carrying too much current - therefore has a small voltage difference. No reverse polarity exists. But that voltage difference is enough for a surge guard to suspect it exists.

To say more means numbers from a meter must be provided, All this is layman simple once one learns the simple relationships between those AC power wires.
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Old 08-22-2015, 10:26 AM   #10
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Reverse polarity is when the hot and neutral legs are reversed. This will not damage an AC appliance but it is a safety issue.
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