ceb58
Senior Member
- Location
- Raeford, NC
I was ask a question today and I am not sure that I gave the right answer:-?.
Here's the hypothetical situation. All #12 wire on 20amp breaker. You leave the panel with 3 separate circ. 1hot 1 net.& grd. each (no MWC) all in same pipe. They go to a j-box and turn and go into a 3 gang switch box. One pipe say 10'long. The switch legs then leave the box in the same pipe back to the J-box and then branch out in different directions to the lights. Would the fact that you now have 12 cond. in one pipe require derating or would the fact that they are still the same circ. with a switch in between them not require derating?
Here's the hypothetical situation. All #12 wire on 20amp breaker. You leave the panel with 3 separate circ. 1hot 1 net.& grd. each (no MWC) all in same pipe. They go to a j-box and turn and go into a 3 gang switch box. One pipe say 10'long. The switch legs then leave the box in the same pipe back to the J-box and then branch out in different directions to the lights. Would the fact that you now have 12 cond. in one pipe require derating or would the fact that they are still the same circ. with a switch in between them not require derating?