charging subpanel ... more questions
 

1. do i use the same kind of circuit breaker to charge a subpanel as i would for a regular circuit?

2. if i use a 100A circuit breaker on the main panel to charge the subpanel, will AWG 3 wires suffice for black/red/neutral? and can i go smaller for the ground?

thanks

The minimum size of equipment grounding conductor for a 100 Amp feeder or circuit is #8 copper.

The #3 feeders are fine.

can i go smaller than 3 AWG. i am gonna go with a cable, not loose conductors actually

What is the amperage rating for the sub-panel ?

If its being fed off a 100a then it has to be #3

200 but i am feeding it off of a 100A circuit breaker in the main panel. I got a bigger amperage because i may switch it to its own meter in the future

If you are using AL cable to feed the sub you need 2/2/2/4.

That #2 SE cable is only good for 90 Amps max ....

:censored: looked at the wrong column. As you can tell, we don't use much AL wire here.

Dont worry, most guys around here use table 310.15(B)(6) when wiring subpanels. :no:

Umm, were you referring to 310.15(b)(16)??

No I think he is referring to 310.15(b)(7) in the 2011 code. He is still using the 2005...(b)(6) was changed to (b)(7) in the 2011.

Ahh thanks, i have 08 and 2011..... maybe we should ask cossac what he thinks. Hahaha.

Try to out-funny me now Stickboy;)