Hello, new to the board and wanting to get an opinion on what I seen today.On a residential house in the crawlspace the electrician used a cylinder block as a raceway,used carflex at the top of the block,busted out 1/2" for the carflex to slide into hole,the length of the carflex was only 12" in length,just enough to hide inside of block and the 12/2 wg was ran inside the block to a plastic pop-in box that was cut in the block ,to look as if the block was sheetrock.I seem to remember this in the NEC but can't locate at the present time.What do you guys think? I love this site it has unlimited information!

bhester,

Welcome Aboard!!

Look at 336-4(a)for uses permitted for NM cable.

Is this a place subject to dampness?
Any opinions?

Bill

Sounds like a ? for the AHJ. The "excessive" wording in that section seems like it could mean most anything...from above 1% humidity to total immersion! Got to hand it to the guy, though, I'll bet it was a real chore to put in that cut-in box. Thanks for joining us!!