ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
600 KW 120/208 3 Phase Y protection
by Yooperup. 07/24/17 12:20 PM
1913 American Electrician's Handbook
by gfretwell. 07/20/17 01:08 PM
Green House wiring
by ghost307. 07/20/17 09:10 AM
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 07/18/17 08:06 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
239,354 Are you busy
174,812 Re: Forum
167,196 Need opinion
Who's Online Now
0 registered members (), 90 guests, and 4 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#76618 - 02/28/01 05:59 PM Grounding Conductor  
jsb55  Offline
Junior Member
Joined: Feb 2001
Posts: 1
Roanoke, Virginia, USA
Section 250-91(b) (1996 NEC) allows the use of emt as the grounding conductor of a circuit. My question concerns whether the common type emt fittings will provide continuity or if some type of bonding connector should be used? What is normal in the industry?

thanks


2017 / 2014 NEC & Related Books and Study Guides

#76619 - 02/28/01 06:40 PM Re: Grounding Conductor  
Tom  Offline
Member
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
EMT fittings will safely carry ground fault currents At least the steel ones will, some of the zinc die cast don't perform as well, mainly because the locknuts sometimes won't penetrate the paint on some boxes or fixtures.

Many electricians around here also install an equipment grounding conductor inside the conduit. We've all seen fittings that have loosened or have had the conduit pulled out & when that happens, there is no ground downstream from the break.

I personally pull in a seperate equipment ground in any conduit likely to get abused. I don't bother to do this with conduits that are 20 feet in the air, but once you drop down to 10 feet or so they can be easily damaged.


Few things are harder to put up with than the annoyance of a good example.


Member Spotlight
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 216
Joined: March 2005
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: 0.011s Queries: 14 (0.002s) Memory: 0.7440 MB (Peak: 0.8611 MB) Zlib enabled. Server Time: 2017-07-26 18:44:42 UTC