View Single Post
  #11   Report Post  
Posted to sci.electronics.repair
[email protected] pfjw@aol.com is offline
external usenet poster
 
Posts: 1,625
Default USA wiring question

If you have 10 gauge, 4-conductor wiring to the pump-house, you are fine doing as you plan. That would be 1-Hot 2-Neutral 3-hot 4-ground into the sub-panel. Then, a double-pole breaker to the pump for 240 Volts, and single pole breakers to light(s) and receptacle(s).

If you do not have an existing separate ground coming from the house, you will need to add a ground rod in the pump-house to ground the sub-panel. And it is still bad practice to use the feeder ground as a neutral - even though they are (should be) bonded in your main house panel. However, this used to happen all the time with heavy appliances being fed with SE Cable such as stoves and dryers, even though they had both 240 and 120 volt-functions on-board.

Good luck with it!