ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
Admin 8
Recent Posts
OD of Alum and Copper
by Yoopersup. 08/23/17 09:05 AM
Grid problem??
by annemarie1. 08/21/17 01:10 PM
Bathroom electrical
by doc. 08/19/17 06:53 AM
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
New in the Gallery:
Gallery Test
Popular Topics(Views)
240,139 Are you busy
175,761 Re: Forum
167,952 Need opinion
Who's Online Now
0 registered members (), 91 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#164429 - 06/03/07 08:35 AM MC connectors concealed in walls?  
frankgi  Offline
Member
Joined: Nov 2005
Posts: 11
NJ USA
A very knowledgeable co worker of mine claims to have failed a rough inspection because of an MC connector being used in a box that is to be concealed in a wall. I believe it is a JHA vio. Any thoughts?


"Its all about the small details"

Building Codes & Related References

#164430 - 06/03/07 09:09 AM Re: MC connectors concealed in walls? [Re: frankgi]  
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
I would say there is a misunderstanding somewhere in the translation of the story, or a misinformed inspector.

Roger


#164433 - 06/03/07 12:30 PM Re: MC connectors concealed in walls? [Re: Roger]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,105
Estero,Fl,usa
Is he saying the connector is concealed or the whole box(cover not accessible).


Greg Fretwell

#164435 - 06/03/07 01:42 PM Re: MC connectors concealed in walls? [Re: gfretwell]  
frankgi  Offline
Member
Joined: Nov 2005
Posts: 11
NJ USA
Thanks Roger and Greg for your replies.
It was a plain old side bracketed deep 1900 box with 9 ko's (3 on 3 sides with no internal clamp)used as a switch location (mud ring added) NEC 2005 Art 330 does not mention any vio about MC connectors in walls or concealed locations.


"Its all about the small details"

#164441 - 06/03/07 03:55 PM Re: MC connectors concealed in walls? [Re: frankgi]  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I have heard folks claim that 90-degree MC, or flex, fittings had to be treated as an LB would be treated, and remain accessible.

Personally, I do not share this opinion. I do concede that some such fittings have little covers that make them resemble conduit bodies, but I still do not consider them to be the same as conduit bodies.

As for straight connectors .... I'm not sure it's possible to use them without concealing them. The NEC clearly allows for fishing the material ... and it's been quite a while since I saw a box with internal clamps.


#164443 - 06/03/07 04:53 PM Re: MC connectors concealed in walls? [Re: renosteinke]  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
I think it is confusion with the requirement that 90 degree FMC connectors stay accessible.


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#164453 - 06/03/07 08:53 PM Re: MC connectors concealed in walls? [Re: iwire]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,105
Estero,Fl,usa
The only reason conduit bodies need to remain accessible is so you can pull in new conductors after the walls are closed up. You don't pull new conductors in a cable.


Greg Fretwell

#164456 - 06/03/07 09:46 PM Re: MC connectors concealed in walls? [Re: gfretwell]  
frankgi  Offline
Member
Joined: Nov 2005
Posts: 11
NJ USA
True Greg...or no one is going to make a splice in an MC 90 connector...imagine that!
Thanks for all the replies!


"Its all about the small details"


Member Spotlight
lil suzi
lil suzi
Midwest
Posts: 57
Joined: August 2003
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.014s Queries: 15 (0.003s) Memory: 0.7951 MB (Peak: 0.9602 MB) Zlib enabled. Server Time: 2017-08-23 17:31:42 UTC