I have a receptacle in my kitchen cinder block wall and have chiseled a channel in the cider block for the Romex™ but I think the Romex™ needs to be in conduit like in this picture.
https://www.energyefficientbuild.com/images/RosO1-20080919-013a.jpg
Do I need to put a cover over the chiseled channel before I plaster over it or can I plaster right over the conduit?
Best Answer
NM can be in the hollow cavity’s of block walls but not embedded in a cutout. When run in block walls, if exiting the wall conduit would be needed on the outside unless a surface covering is provided (a furring strip on either side with 1/2” plywood or Sheetrock) is another way to do it. Your actual work might provide more detail.