ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
May I backfeed 3 phase transformer?
by dsk - 10/22/21 04:37 AM
Wire sizing
by gfretwell - 10/21/21 10:12 PM
GFCI's pops in large numbers
by dsk - 10/21/21 02:03 AM
Need some info on Japanese outlets, 200V 15A
by andey - 10/20/21 08:05 AM
nec 110.3 (B)
by watersparkfalls - 10/19/21 07:09 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 15 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#205558 03/04/12 11:08 PM
Joined: Mar 2004
Posts: 947
T
twh Offline OP
Member
What rule requires that ganged boxes have a ground wire attached to each section?

twh #205559 03/05/12 09:33 PM
Joined: May 2003
Posts: 1,157
Member
The only thing I can think of is all electrical metal equipment needs to be bonded , and the bond must not have any other purpose like the screw that attaches sections together If your thinking of sectional boxes that we make up in the field. I usually just use the welded single gang to 5 gang boxes i never use the sectional type unless it is rework

twh #205560 03/05/12 09:53 PM
Joined: Jun 2006
Posts: 613
M
Member
Doug gets the prize. It is not a part 1 code rule it is a part 2 code rule. Part 2? Electricians install electrical products to the part 1 standard. Code book! So what code does a manufacturer use? They use Part 2. Part 2 has hundreds of code books. One such standard is the installation of underground systems, Another might be the C22.2 N0. 18 OUTLET BOXES, CONDUIT BOXES, AND FITTINGS where we might learn about sectional boxes and how they are to be made.
So the sectional boxes are attached together with a screw that is not tested for bonding continuity between sections so when field assembled the EC must ensure bonding continuity between sections.

twh #205561 03/05/12 11:56 PM
Joined: Apr 2002
Posts: 7,282
Likes: 3
Member
Interesting! That may be 'stateside' in the next two code cycles.


John
mikesh #205643 03/16/12 01:03 AM
Joined: Sep 2006
Posts: 111
E
Member
Originally Posted by mikesh
so when field assembled the EC must ensure bonding continuity between sections.


?? Are you saying we must bond the boxes together with a wire, but there's no code in CEC part one that says we do? Is that a provincial ammendment?


twh #205645 03/16/12 01:48 AM
Joined: Mar 2004
Posts: 947
T
twh Offline OP
Member
Thomas & Betts is looking into this.

Joined: Jun 2006
Posts: 613
M
Member
Eddy
the answer I provided higher up the thread applies. It is related to the standard approval. Whether a provincial inspector knows this or not is part of the debate. To my knowledge each section of a filed gangable box is supposed to have a bond wire attached to each box section and joined together.
It is code but not from the part 1 code book so you won't find it in that book. It is in the code book for making boxes.

twh #205674 03/21/12 12:23 PM
Joined: Mar 2012
Posts: 7
W
New Member
On a recent inspection, the inspector looked into all ganged boxes to check for the bonding jumper. One continuous bond wire and all others pig tailed together.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

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

 

Member Spotlight
togol
togol
NW In. USA
Posts: 421
Joined: September 2005
Top Posters(30 Days)
dsk 7
Popular Topics(Views)
284,761 Are you busy
217,372 Re: Forum
203,712 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5