ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Recent Posts
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
AFDD's coming to the UK
by Texas_Ranger - 01/17/23 07:22 PM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
0 members (), 18 guests, and 8 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Sep 2006
Posts: 155
Is it legal to rewire/replace knob and tube wiring for 1000sf. home just fishing and not opening bays? customer wants to have done. I said about 250/opening and probably have to open for blocking.
Is it legal in oakland calif. to to extensive rewire without opening up?

Latest Estimating Cost Guides & Software:
Joined: Apr 2002
Posts: 7,333
Likes: 7
"Fishing" in wiring should be acceptable, unless there is a local amendment prohibiting it.

Joined: May 2005
Posts: 984
Likes: 1
I'm gonna say it's not allowed since none of the wiring would be secured for the vast majority of length of its run...but the AHJ will have the final say on it.
It's worth giving City Hall a call and finding out before you give out a price that won't cover your work.

Joined: Jul 2004
Posts: 9,788
Likes: 14
It would have to be a local amendment. The NEC clearly allows fishing the chapter 3 cables in old work.

334.30(B) Unsupported Cables. Nonmetallic-sheathed cable shall be permitted to be unsupported where the cable:
(1) Is fished between access points through concealed spaces in finished buildings or structures and supporting is impracticable.

Greg Fretwell
Joined: Apr 2002
Posts: 7,333
Likes: 7
Thanks for the NEC reference!!!
I've been busy & time is short.

Joined: Feb 2004
Posts: 1,438
I've done this and never had a complaint in Southern Cali from the AHJ's here

Joined: Feb 2002
Posts: 2,233
I myself as an AHJ, think that the safety of using newer, higher temp cable (with a ground wire) would be much safer than leaving an old K&T system.

Link Copied to Clipboard

Tools for Electricians
Tools for Electricians

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Posts: 27
Joined: December 2004
Top Posters(30 Days)
BigB 8
triple 3
Popular Topics(Views)
302,698 Are you busy
231,960 Re: Forum
216,622 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5