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Old 03-03-2021, 07:06 AM   #1
holman391
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Electric shock

Got a new carbon toyhauler and keep getting a quick static shock when i first touch any medal when i go in the trailer. Any ideas on where to start? Once in the trailer and after first shock it stops.
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Old 03-03-2021, 07:23 AM   #2
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You probably have what is known as a hot skin condition where a open ground or other fault with either your power cord or some other wiring fault inside of your trailer. This is a serious and potentially fatal condition. Please unplug your trailer and read the attached link as well as others releated to this condition that you should google.
https://rvelectricity.com/2018/09/24...stray-voltage/
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Old 03-03-2021, 07:41 AM   #3
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This should be article 1 in a four part series on hot skin from RV travels.
https://www.rvtravel.com/rv-electric...-skin-voltage/
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Old 03-03-2021, 07:47 AM   #4
LewisB
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Need more information:
  • Does this happen when you are plugged in to shore power?
  • Does this happen when you are NOT plugged in to shore power?
  • Does this happen when you have a connected generator in operation?
  • Trailer year & model, 30A or 50A service?
  • Most importantly, do you have a true EMS (electrical management system) between you and the shore power? A true EMS would shut down the power with an open ground or neutral.
I certainly agree that this could be a dangerous situation that needs your immediate attention. This could be more than just a "static shock".
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Old 03-03-2021, 07:53 AM   #5
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Quote:
Originally Posted by Bostongone View Post
You probably have what is known as a hot skin condition where a open ground or other fault with either your power cord or some other wiring fault inside of your trailer. This is a serious and potentially fatal condition. Please unplug your trailer and read the attached link as well as others releated to this condition that you should google.
https://rvelectricity.com/2018/09/24...stray-voltage/
It is static electricity. OP stated that it is a one-time event. Hot skin would shock every time.

Try this static strap.


https://www.amazon.com/Gates-90330-S...76989558&psc=1
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Old 03-03-2021, 07:59 AM   #6
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Sorry, but "keep getting a quick static shock when i first touch any medal when i go in the trailer" is a sign of 'hot skin' and needs to be addressed. It is a dangerous situation.
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Old 03-03-2021, 08:03 AM   #7
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Sorry, but "keep getting a quick static shock when i first touch any medal when i go in the trailer" is a sign of 'hot skin' and needs to be addressed. It is a dangerous situation.
Go back and read the OP. It only happens one time per event.
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Old 03-03-2021, 08:14 AM   #8
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Quote:
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Go back and read the OP. It only happens one time per event.
He says it happens one time; as he he touches the metal of the trailer as he is entering. To me that could be either static electricity or hot skin. Once he's in the trailer and just moving around he isn't on the ground OR able to touch the metal exterior.

For me (I know it's not recommended) I would just go outside, stand on the ground and put the back of my hand on the metal exterior quickly; do you feel a tingle - hot skin. Or just take a meter and read between the metal and ground.
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Old 03-03-2021, 08:16 AM   #9
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This is happening when not plugged in
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Old 03-03-2021, 08:19 AM   #10
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No tingling when touching metal exterior. Just a quick shock.
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Old 03-03-2021, 08:25 AM   #11
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Go back and read the OP. It only happens one time per event.
From the brief description I would suggest he have it checked out to rule out a "hot skin" condition. Once he's in the trailer he's no longer providing a path to ground. The fact that bit "happens every time" to me indicates an issue that needs to investigated. The op I beleive is using the term "static shock" as a descriptor and not a diagnosis of the problem.

More information is needed before I would pass this off as a static shock and recommend a static strap that was popular "back in the day" and has been proven to be totaly useless.
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Old 03-03-2021, 08:34 AM   #12
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I think static electricity could be caused by a tiger rubbing up and down on the outside of his trailer and poses no shock hazard but the tiger does pose a hazard if the tiger is a man eater. Gosh guys, it ain't normal to get shocked. OP, call a pro to track down why this is happening.
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Old 03-03-2021, 11:09 AM   #13
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I get "static" shocks all the time in my TT when I'm wearing my polyester sweatshirt and my slippers with a rubber/plastic sole. I quit wearing the slippers and that helps a lot.
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Old 03-03-2021, 11:19 AM   #14
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I've not ever had a static electric shock from my camper. In one of my previous travel trailers, I've had a hot ground before, when I plugged into a 120v 15 amp circuit and the extension cord did not have a ground prong though.

I HAVE had static electric shocks when I touch my cat!
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Old 03-03-2021, 01:04 PM   #15
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I've been accused of having a short memory a time or two... (I forget when, though)....

That said, I can't remember ever getting a "static shock" from touching a travel trailer while OUTSIDE the trailer. I have had "static shocks" while INSIDE a trailer if conditions were right for a static buildup. NEVER, from a shock while outside the trailer...

If there's a "shock when touching the skin of the trailer, I'd suspect an electrical issue. To confirm that, I'd try to replicate the problem WHILE THE TRAILER IS DISCONNECTED FROM SHORE POWER.... If it happens then, it's "static"... If it "only happens with the trailer plugged into shore power and NEVER happens when unplugged", then I'd be looking for a competent electrician or RV repairman.....
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Old 03-03-2021, 01:50 PM   #16
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Ya'll read post #9 and 10
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Old 03-03-2021, 02:01 PM   #17
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Ya'll read post #9 and 10
OK Cavie (retired master electrician)... if not plugged in, would the 12VDC be able to cause what the OP called a "shock" as I believe the camper would be on battery. Having been zapped by 12VDC quite a few times (motorcycle mechanic) I can assure you it would get your attention. I don't know enough about electrical stuff to be able to say if a 12V source could translate to an outdoor touch/shock. Whatcha say?
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Old 03-03-2021, 02:27 PM   #18
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OK Cavie (retired master electrician)... if not plugged in, would the 12VDC be able to cause what the OP called a "shock" as I believe the camper would be on battery. Having been zapped by 12VDC quite a few times (motorcycle mechanic) I can assure you it would get your attention. I don't know enough about electrical stuff to be able to say if a 12V source could translate to an outdoor touch/shock. Whatcha say?
the battery would go dead. No converter to charge the battery.
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Old 03-04-2021, 05:52 PM   #19
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Update with generator off and battery negative cable disconnected still get a little shock. Starting to think it’s me building up static. Tested for hot skin with multi meter when generator was running and had no voltage to earth ground.
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Old 03-04-2021, 06:03 PM   #20
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In my life I've never had the "skin" of an RV give me a shock. It does sound like you are doing something to generate a static shock...what? What kind of shoes do you wear; what's at the door? If nothing else, and the dangerous potential has been eliminated-120vac, I would just figure out how to stop it by modifying your actions....or live with it (if just static).
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