ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Using THWN on automotive circuits
by BigB - 03/22/23 09:46 PM
Continuous load
by HotLine1 - 03/08/23 02:11 PM
How's all our Non-US folks doing?
by dsk - 03/08/23 11:56 AM
Old Computers?
by Bill Addiss - 03/04/23 05:06 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 (), 61 guests, and 50 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#41277 08/24/04 12:37 AM
Joined: May 2003
Posts: 2,876
E
e57 Offline OP
Member
Just wondering about this, haven't come across a situation lately where I kept K&T, but could/should it be AFCI/GFCI'ed at the breaker?

Anyone have an opinion on that?


Mark Heller
"Well - I oughta....." -Jackie Gleason
#41278 08/24/04 06:10 AM
Joined: Feb 2003
Posts: 198
Z
Member
Thats a good question, don't know , never tried it. IMO, it might not work due to the fact that polaritys are always crossed at times in K&T wiring,and also switched neutrals, encountered in old homes, and hot 3 ways.


Shoot first, apologize later.....maybe
#41279 08/24/04 03:51 PM
Joined: Dec 2003
Posts: 751
E
Member
Arc fault breakers should still work with K and T.
Ground fault breakers might not work if the neutral and hot polarity is switched. Best to use GFCI receptacles, after determining the correct polarity.


Earl
#41280 08/24/04 04:31 PM
Joined: Feb 2004
Posts: 62
S
Member
Also be forewarned, a lot of the old metal boxes aren't large enough to accommodate a GFCI receptacle.

#41281 08/24/04 08:45 PM
Joined: Mar 2004
Posts: 947
T
twh Offline
Member
When I change a panel and there is K&T I put a GFI switch on the K&T, by the panel. The only problem is that sometimes the circuits share a neutral, or two.

When I add a bedroom plug, I put the K&T for the bedroom on the AFCI with the new plug. Same problem with shared neutrals.

Haven't had any problems with polarity.


Link Copied to Clipboard
Featured:

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
Trumpy
Trumpy
SI,New Zealand
Posts: 8,432
Joined: July 2002
Top Posters(30 Days)
BigB 2
triple 2
Popular Topics(Views)
305,015 Are you busy
233,429 Re: Forum
218,124 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5