Bill Z
Member
Greetings,
I'm finally going to wire our 24 X 36 detached garage/shop, which has had "temporary" wiring consisting of a #12 wire run in one of the conduits, to power a quad outlet, some overhead bulbs, and garage door openers, for years, while I finished the house which was for weekend/vacation use, but is now our full time residence.
When I wired an addition to the house, a number of years ago, I ran SER#2-2-2-4 aluminum, 40' from the 200 amp main panel to a 100 amp sub-panel, fed by a 90 amp breaker. My plan for the garage is to use the same type panel (GE 100 amp main panel converted for use as a sub-panel) also fed from the main house panel with a 90 amp breaker. I already have everything except the feed wire and I'd like to use copper this time, as the price seems to have dropped since I did the house.
I installed 2" PVC conduit from the house to the garage at the proper depth (inspected) years ago and the total run, panel to panel is 50'. I was planning to order #4 AWG XHHW for the load and neutral feeds and #6 AWG XHHW for the ground wire, but looking at the specifications they don't seem large enough for a 90 amp breaker. Should I go with a #3 AWG XHHW for the load and neutral feeds and stay with the #6 AWG for the ground?
I know 90 amps is more than I need, even with my compressor, welders, drill press, sandblasting cabinet, gas heater and lighting combined. Any opinions or comments are appreciated. Thanks.
I'm finally going to wire our 24 X 36 detached garage/shop, which has had "temporary" wiring consisting of a #12 wire run in one of the conduits, to power a quad outlet, some overhead bulbs, and garage door openers, for years, while I finished the house which was for weekend/vacation use, but is now our full time residence.
When I wired an addition to the house, a number of years ago, I ran SER#2-2-2-4 aluminum, 40' from the 200 amp main panel to a 100 amp sub-panel, fed by a 90 amp breaker. My plan for the garage is to use the same type panel (GE 100 amp main panel converted for use as a sub-panel) also fed from the main house panel with a 90 amp breaker. I already have everything except the feed wire and I'd like to use copper this time, as the price seems to have dropped since I did the house.
I installed 2" PVC conduit from the house to the garage at the proper depth (inspected) years ago and the total run, panel to panel is 50'. I was planning to order #4 AWG XHHW for the load and neutral feeds and #6 AWG XHHW for the ground wire, but looking at the specifications they don't seem large enough for a 90 amp breaker. Should I go with a #3 AWG XHHW for the load and neutral feeds and stay with the #6 AWG for the ground?
I know 90 amps is more than I need, even with my compressor, welders, drill press, sandblasting cabinet, gas heater and lighting combined. Any opinions or comments are appreciated. Thanks.
forgot to add this part.