ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#213375 - 04/17/14 10:06 AM 4" square extensions ??
sparkync Offline
Member
Registered: 10/17/02
Posts: 812
Loc: NC
Does the code limit the amount of extensions can be put on a 4" square box??

thanks
Top
2017 / 2014 NEC & Related Books and Study Guides
#213377 - 04/17/14 10:22 AM Re: 4" square extensions ?? [Re: sparkync]
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
Not really. Joe Tedesco used to have pictures of boxes with a bunch of them on it.
_________________________
Greg Fretwell
Top
#213380 - 04/17/14 02:45 PM Re: 4" square extensions ?? [Re: sparkync]
renosteinke Offline
Cat Servant
Member
Registered: 01/22/05
Posts: 5316
Loc: Blue Collar Country
The use of extension rings is limited by the length of your pigtails. Stack enough of them, and you'll need longer pigtails.
Top
#213384 - 04/18/14 05:46 PM Re: 4" square extensions ?? [Re: renosteinke]
sparkyinak Offline
Member
Registered: 07/08/07
Posts: 1307
Loc: Alaska
Does someone have a UL number for an extension. I do believe an extension is listed for only one. Don't quote me, yet. I could be wrong.
_________________________
"Live Awesome!" - Kevin Carosa
Top
#213385 - 04/18/14 06:06 PM Re: 4" square extensions ?? [Re: sparkync]
HotLine1 Offline


Member
Registered: 04/03/02
Posts: 6776
Loc: Brick, NJ USA
My White Book is in the office, and my laptop with the UL stuff is on my desk!

THe extensions are UL stamped(at least all I have checked), but you raise a good question on the wording within the listing.

Renos comment is what is cited on multi extensions. The most I came upon was a long time back,and it was four (4) extensions on a 232 deep.
_________________________
John
Top
#213386 - 04/18/14 08:37 PM Re: 4" square extensions ?? [Re: sparkync]
Tesla Offline
Member
Registered: 06/16/04
Posts: 1273
Loc: Sacramento, CA
I've seen doubled extensions all over creation.

I've seen four + the base pass inspection without qualms.

For what it's worth,I'd rather 'waste' an extra extension ring than try and cram conductors down into less space.

But, that puts me in the minority. I picked up this bias after becoming the favorite fix-it-for the inspection e-man at every firm I worked for. I came to hate 'tight' j-boxes.

Being the 'last man through' became part of my job routine.

The other stinker was being forced to clean up any warranty calls that stumped the other foremen. (Usually the bosses expected a foreman to fix his own stuff. But that didn't always work out. Then it'd be tossed into my lap.)

I leave this as a warning to other j-men: don't get my kind of reputation. Aim for Homer Simpson: he got all of the best jobs.


Edited by Tesla (04/18/14 08:39 PM)
_________________________
Tesla
Top

Member Spotlight
Member Since: 11/17/00
Posts: 2232
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 52 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Freecrowder, clee512, Jdscott2005, FAIZAN, Regitest2

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals