Originally Posted by TQ60
Nothing about any union here and being a self installed circuit dies NOT let "pump guy" wiggle off the hook.
A single line powered circuit with a single breaker in a non - commercial residential panel is most likely going to be 120 volts.
And it may or may not be wired to code but if the "customer" states that it is okay to swap from single to dual breaker that is a modification of existing so it must all be brought to code meaning the licensed person needs to determine and confirm what is there and do it correctly.
If it was 120 vac rv plug and done correctly it should have had 3 wires and one should have been white for neutral but if home brew could have been anything.
Reusing that wire for a hot lead could have resulted in someone being killed.
In your case, the neutral line was connected to 120 vac hot and out of phase with other so possibility of hot skin if safety ground in rv attached to neutral which is common combined with a possible bad cord which also is common could result in a 240 vac difference between the skin and a lamp.
A licensed electrician who knows what they are doing would have asked exactly was on the circuit and verified both by touch and measurment.
Your pump was connected to the rv outlet so it would have been in the path.
Folks using wrong colors and having other things oddball make life difficult for folks doing work later and those doing that work always need to verify exactly what is going on.
Easily adds much additional time to our work on most jobs but that is how we discover Un fused power leads and other hazards.
No this is not about unions...It is about living to see the next day.
The wire running to the Rv plug from the breaker box is a 10Ga 2 wire w/ground. The pre-assembled 30 Amp Rv box w/recepticle is a 120v already set up with the green ground wire wired from back of recepticle to the box leaving only the white and black wires to hook up.
The pump guy said it was ok to use the 2 wire 10 ga w/ground to power the 220 well pump. You are correct, the lack of the third wire had me wondering how this will work. So he ran a black out of one side of the double breaker, the white out of the other side and left the ground as a ground.
I changed the breaker for the RV plug back to 120V, so it is now correct and on it's own circuit. I had and extra 220 Dryer plug in my shop about 2' from the entrance of the well pump line, so I wired the pump to that. This obviously leaves the white neutral coming from the breaker box unused when going to the 2 wire lead to the pump. The pump is still grounded with the bare ground wire.
As you can tell I am not an electrician. But, can you explain the difference between the white neutral and the bare ground wire? Both appear to "ground' inside the breaker box....different grounding bars, but both grounded.