ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,876 Are you busy
169,675 Re: Forum
162,913 Need opinion
Who's Online Now
0 registered members (), 92 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#92079 - 02/25/05 12:27 PM Gr.Passing Thru Box 250.148  
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 822
Michigan
250.148 gives the impression that the Equipment ground wire is not required to be connected to the box if the ungrounded conductors pass thru in a metal box. Also all the Code Review books state the same thing. Shouldn't there be a reference in that section dealing with noncondutive raceways and Metal boxes??? Where even If the ungrounded conductors passed thru, the equipment ground Would be required to connected to the box.I know 250.80 & 250.86 covers it. BUT it should be referenced in 250.148 . Any comments on this???

[This message has been edited by Yoopersup (edited 02-25-2005).]


2017 / 2014 NEC & Related Books and Study Guides

#92080 - 02/25/05 08:45 PM Re: Gr.Passing Thru Box 250.148  
earlydean  Offline
Member
Joined: Dec 2003
Posts: 751
Griswold, CT, USA
It IS referenced in 250.148, in sections (A) and (B).


Earl

#92081 - 02/26/05 03:24 PM Re: Gr.Passing Thru Box 250.148  
Elzappr  Offline
Member
Joined: Dec 2001
Posts: 270
Oregon
Yooper, I see what you mean. But I think the essential point of this section is to require continuity of the equipment ground ing conductor. As you noted, 250.80 and .86 covers the issue of requiring equipment grounds in general for metal boxes.


#92082 - 02/26/05 06:43 PM Re: Gr.Passing Thru Box 250.148  
George Little  Offline
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
Ernie, I guess if you are using non metallic raceway and metal boxes, and not splicing or terminating in these boxes, I don't see a hazzard. But why would you do that?? If your trying to gain some shielding, you'd be better served by using metal boxes and EMT or conduit. Plus non metallic boxes are cheaper.


George Little

#92083 - 02/26/05 08:18 PM Re: Gr.Passing Thru Box 250.148  
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 822
Michigan
George
Metal boxes with nonmetalic Conduits are used a lot of times like 2- 4 inch PVC's underground coming up J box then into Building with 2 -4 inch PVCs , And Yes there ia a Hazard if one of the hots rubbed against the side of the box. You then have a hot box . With smaller pipes metal boxs & PVC conduits its not common But with larger pipes it is!


#92084 - 02/26/05 11:54 PM Re: Gr.Passing Thru Box 250.148  
George Little  Offline
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
Okay Ernie, guess you win this one. The Yoopers have to win sometime [Linked Image]


George Little


Member Spotlight
Alan Belson
Alan Belson
Mayenne N. France
Posts: 1,803
Joined: March 2005
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.013s Queries: 14 (0.002s) Memory: 0.7753 MB (Peak: 0.9196 MB) Zlib enabled. Server Time: 2017-04-28 15:59:32 UTC