The Electrical Contractor Network

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

Books, Tools and Test Equipment for Electrical and Construction Trades

Topic Options
Rate This Topic
#103629 - 10/07/02 04:55 AM Loose Locknuts at Short Nipple
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA


I find many of these bad installations during my inpections!

Some locknuts are installed backwards!

What's the problem? This violates a very simple rule .... continuity!
_________________________
Joe Tedesco, NEC Consultant

Top
2014 / 2011 NEC & Related Books and Study Guides
#103630 - 10/07/02 07:30 AM Re: Loose Locknuts at Short Nipple
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6805
Loc: Brick, NJ USA
Guess it all goes back to that old saying "pride in workmanship". It seems to becoming a more "hurry-up" world. How about "quality instead of quantity" within reason?
Are/were the lnuts tight on the inside???
A "red sticker" special!
John
_________________________
John

Top
#103631 - 10/07/02 01:23 PM Re: Loose Locknuts at Short Nipple
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
HotLine1

I did not remove the covers to check, but from the looks of it I would say that they were loose. I'll also bet that the required bushings according to 300.4(F) were missing.
_________________________
Joe Tedesco, NEC Consultant

Top
#103632 - 11/12/02 05:53 PM Re: Loose Locknuts at Short Nipple
andylea Offline
Member

Registered: 11/12/02
Posts: 29
Loc: ny
is that rust on the nipple???? when was it installed???

Top
#103633 - 11/16/02 10:16 AM Re: Loose Locknuts at Short Nipple
mj Offline
Member

Registered: 06/10/02
Posts: 188
Loc: meriidian, ms
what about bonding lock nuts

Top
#103634 - 11/19/02 11:43 AM Re: Loose Locknuts at Short Nipple
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
The rust on the nipple has probably been there about 10 years, and bonding locknuts will not help to correct the problem here.

The locknuts are loose and were never tightened.
_________________________
Joe Tedesco, NEC Consultant

Top



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