Do you derate the conductors when you have 27 conductors in the raceway?This probably a hard-pipe system.
goto the nearest receptacle or light opening and "and another wire" in the pipe.
.I know I can put 27 #12 thhn wires in a 3/4 pipe
How do you add circuits to existing recessed (in masonry) panelboards?
See attached - I assume this is not how to do it.
I see this all the time but this time I had my camera (phone) handy.
I chip out the block, cut out the steel and offset into it. The only way I know.
By the way, who ever invented that type of screw cover for that panel should be shot.
By the way, who ever invented that type of screw cover for that panel should be shot.
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I like them fine when other before me have not screwed them up.
Do you derate the conductors when you have 27 conductors in the raceway?
This probably a hard-pipe system.
goto the nearest receptacle or light opening and "and another wire" in the pipe.
I know I can put 27 #12 thhn wires in a 3/4 pipe.