I was reading an old code book and saw a rule about knob and tube wiring I never knew

I was looking through a 1940s NEC book at a flea market in Springfield and found a section saying they allowed splices in knob and tube runs without a junction box, just taped up in the wall. I always thought any splice needed a box, even back then. Has anyone else run into old work that followed this rule?

2 comments

2 Comments

miaa4112d ago

My grandpa was an electrician. He told me they used to do splices right in the wall with just friction tape. Said the code was different before everything got so strict. They'd wrap it up real good and leave it in the plaster. Sounds wild now but that was the standard practice. Makes sense you'd find it in an old rule book.

mitchell.wren12d ago

Yeah but friction tape was never code, even back then.