50 amp hook up

Learjet wrote:
Geezzz, people...stop guessing and giving wrong electrical advice...if you are not 100% certain....STOP !!!!

OK, so far, 100% agreement that the outlet is wired wrong.

Geezzz, people...stop guessing and giving wrong electrical advice...if you are not 100% certain....STOP !!!!

Dutch_12078 wrote:

Only one of the hot terminals would read 240 to the neutral terminal

Sat what? one hot to neutral should not be 240.

Bobbo got it right.

wolfe10 wrote:
Dutch,

But, if both a neutral and a hot, say hot 2 is also hot (instead of hot 1 and hot 2 being hot) then:

From hot 1 to neutral would be 120 VAC
BUT, from hot 2 to neutral (now hot) would either be zero or 240 VAC -- with 240 being the reading if the box did have the "proper" two hots from the CG main box.

Only one of the hot terminals would read 240 to the neutral terminal if the other hot wire and neutral wire are reversed. The OP read 120 from each hot terminal to the neutral terminal, which does not tell the whole story of course. He also read 120 from the neutral terminal to the ground terminal, and that's what gives us the "Ahh-ha!" reading to suspect the neutral and one hot leg are reversed. A 240 reading from the neutral terminal to one of the hots would serve to verify that, but it's probably not needed to justify having a qualified maintenance person check out the wiring in the box. I wouldn't be surprised to find out the outlet had been recently changed.

We really need more readings. We need:

NEUTRAL to L1. (should be 120)

NEUTRAL to L2. (should be 120)

L1 to L2. (should be 240)

GROUND to L1. (should be 120)

GROUND to L2. (should be 120)

GROUND to NEUTRAL. (should be 0)

Only with this info can we try to diagnose the problem.

Dutch,

But, if both a neutral and a hot, say hot 2 is also hot (instead of hot 1 and hot 2 being hot) then:

From hot 1 to neutral would be 120 VAC
BUT, from hot 2 to neutral (now hot) would either be zero or 240 VAC -- with 240 being the reading if the box did have the "proper" two hots from the CG main box.

The OP didn't say if both "hots" were actually hot, just that he read 120 from each to neutral. If the neutral reads 120 to ground, then I'd suspect that one of the "hot" terminals would likely read zero to ground, indicating a reversed hot/neutral connection. A 120 reading from hot to hot and a 240 reading from the other hot to neutral would verify that.

Not sure how that could happen-- would need exactly where you read what:

If each outer is hot (as it should be) AND either the center round (ground) or center straight (neutral) was hot, then CHECKING BETWEEN EITHER HOT AND WHICHEVER OF THE CENTERS WAS HOT WOULD EITHER READ ZERO VAC OR 240 VAC.

I agree tough to believe. When you measured 120 vac on the hots was that from neutral or ground to a hot? If from neutral to a hot it implies ground was tied to a hot.

120 volts between ground and neutral is very much NOT NORMAL, in fact it should be impossible

Are you sure you were measuring from NEUTRAL (Top center) to Ground (Bottom center,round or U-Shaped) The voltage between them should be zero on a mains connected outlet.. In some cases (Running on RV Generator) 60 will show up on a high impedance meter (zero on a low inpedeance meter) but on the park outlet it should always be zero.