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View Full Version : Installing a new subpanel


swat
Sep 3, 2007, 03:02 PM
Hello,

I am installing a subpanel in a utility shed and already have a panel in there using 2-60 amp tubes and another tube for the ground. What I would like to do is put a subpanel in there to where I can put four 20 amp breakers. The wire they ran already is a 10 gauge with 1 black 1 white and a ground. How would I wire these existing wires in the new subpanel. I see most subpanels have a red, a black, and a white with a ground. I bought a subpanel that doesn't have a ground bar just a neutral bar. Should I put the ground to the box from the feed and then the new grounds to the neutral or just twist them all together to a pig tail and ground them with the feed ground to the box. I am adding 6 plugs, 4 lights, a switch and a fan. Do I have to run new wire from the main house panel that has a red wire in it? Also if the breaker in the main panel from which the feed comes from isn't a 60 amp do I need to replace it with a 60 amp?

Thank You,
Scott

Flying Blue Eagle
Sep 3, 2007, 06:05 PM
I have been a licened electrian for 20 years. It is not right what you already have , A # 10 wire ? I think you had better get a electrian to do the job right. I could give it to you from start to finish, but for { YOUR SAFTY}| Please get a electrian to do it right and to code:

swat
Sep 4, 2007, 07:45 AM
I have been a licened electrian for 20 years. It is not right what you already have , A # 10 wire ? I think you had better get a electrian to do the job right. I could give it to you from start to finish, but for { YOUR SAFTY}| Please get a electrian to do it right and to code:




I am going to run a new 10/3 wire from my main panel to my sub panel. Also I can order a ground bar or get it from the vendor where I bought my new panel. Inew that the people who ran it the first time was wrong but just needed re assurence of it. My brother has been an electrician for around the same time but we are not talking and I worked for an eletric company but never did the panel. Does the new wire from my panel need to be hooked into a 60 amp breaker there. Then to my sub panel. I believe that's the correct way. Thank You.

tkrussell
Sep 4, 2007, 01:46 PM
Where do you get 60 amp for #10 wire? Good thing your asking questions because if you didn't there would be a fire.

#10 wire is good for 30 amps maximum, so need a 30 amp 2 pole breaker. Keep the neutral bar insulated and isolated from any equipment ground and the metal back box of the panel. Mount the new equipment ground bar directly to the metal backbox with machine screws and only connect any green or bare equipment grounds to it.