Note: This article is based on the 2005 NEC. The sizing requirements for pull boxes, junction boxes, handhole enclosures, and conduit bodies exist to prevent conductor insulation damage. Those ...

Q: I had some wiring work in my attic and where the wires come together the electrician left the covers off several of the boxes. I then had insulation added to the attic and they placed flexible ...

Home electrical systems seem straightforward until an inspector starts flagging dangerous installations hiding behind walls.

Conductor damage during installation is one consequence of under sizing junction and pull boxes. This damage is often not apparent until post-installation cable testing. Then, after the boxes are ...