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Old 08-29-2016, 06:46 PM   #1
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12 volt shock??

I don't think I have ever been shocked by a 12 volt battery or wires or jumper cables.. But this evening I was under my mh taking the fuel filter off and my arm got against the " hot" lug on the solenoid/ starter.. It gave me a pretty good bite.. Felt about the same as a weak electric fence .. After it " bit" me.. I got to thinking.. Did I just get shocked from the battery cable??
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Old 08-29-2016, 07:01 PM   #2
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If conditions are just right, yes you can. You must have moist salty skin! Next time try licking the positive terminal while your hand is in some wet dirt. Na, better not do that and take a chance of losing some brain cells.
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Old 08-29-2016, 07:44 PM   #3
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i would say it might be similar to putting your tongue across a 9v battery. Not dangerous but enough to feel. Maybe 0.015 amps.
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Old 08-30-2016, 04:46 AM   #4
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Yes, possible, not dangerous.

and never have metal on hands/arms... "Ring", "watch".. metal and shorting out battery will do serious burns.
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Old 08-30-2016, 05:19 AM   #5
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If conditions are just right, yes you can. You must have moist salty skin! Next time try licking the positive terminal while your hand is in some wet dirt. Na, better not do that and take a chance of losing some brain cells.
Actually.. I was sweating like a pig!!
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Old 08-30-2016, 05:51 AM   #6
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Well there you go. Everyone knows how conductive pig sweat is!

I figured someone somewhere has studied this, and I was surprised many people have! Here is a small part from a study...

Quote:
THE ELECTROLYTE CONTENT of thermally induced sweat has been the
subject of numerous investigations (1, 2, 3). Reported variation in the
composition of eccrine sweat obtained from healthy subjects may be
attributed to ......
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Old 08-30-2016, 06:27 AM   #7
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I all seriousness, now is a good time to check the RV for what they call Hot Skin. It could be the slight shock you felt was actually electrical current leaking from the 120 AC volt supply. Hot Skin condition can be deadly, and should be checked out. Several U-Tube and other web sites out there explaining how to do it. Here is one....
RV Electrical Safety: Part IV – Hot Skin | No~Shock~Zone

Please, anyone who gets a shock when touching the RV, should make sure it is not just static shock but more importantly a leakage of deadly current through you to ground.
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Old 08-30-2016, 06:33 AM   #8
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Was the MH plugged in to shore power ?

Could be something else going on.

I can recall some slight tingles, in the thin arm skin, while leaning on batteries, working on parts further back.

Got to keep them sensitive parts away from electricity
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Old 08-30-2016, 08:21 AM   #9
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I melted a watch band and incurred a nasty burn on my wrist on 12 volts once. Lesson learned: remove jewelry when working with ANY electrical components.
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Old 08-30-2016, 09:04 AM   #10
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Pigs do not sweat. eccrine sweat is human.
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Old 08-30-2016, 09:55 AM   #11
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If the RV was not plugged in and as suggested getting a hot skin issue then absolutely you can feel 12 volts. I worked on vehicles electrical systems for 40 years and in the Sacramento Valley one tends to sweat profusely in the Summer.

My wife understood early that I would not wear my wedding ring at work. One contact to the battery terminal and it would be gone and the finger would suffer greatly. Jumping off a truck frame or steps could find ones finger remaining behind.
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Old 08-30-2016, 11:54 AM   #12
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I melted a watch band and incurred a nasty burn on my wrist on 12 volts once. Lesson learned: remove jewelry when working with ANY electrical components.
Me too- the worst was the smell- roast pork has not had the same allure since
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Old 08-30-2016, 01:24 PM   #13
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Was the MH plugged in to shore power ?

Could be something else going on.

I can recall some slight tingles, in the thin arm skin, while leaning on batteries, working on parts further back.

Got to keep them sensitive parts away from electricity
If your "sensitive parts" were close to the battery terminals you were way too far inside that compartment!
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Old 09-02-2016, 08:30 PM   #14
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Quote:
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I melted a watch band and incurred a nasty burn on my wrist on 12 volts once. Lesson learned: remove jewelry when working with ANY electrical components.
Yep learned the exact same lesson the hard way when I was 17, still have the scars on my wrist almost 50 years later.
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