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#103629 - 10/07/02 07:55 AM Loose Locknuts at Short Nipple  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
[Linked Image]

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

2017 / 2014 NEC & Related Books and Study Guides

#103630 - 10/07/02 10:30 AM Re: Loose Locknuts at Short Nipple  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,801
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

#103631 - 10/07/02 04:23 PM Re: Loose Locknuts at Short Nipple  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
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

#103632 - 11/12/02 09:53 PM Re: Loose Locknuts at Short Nipple  
andylea  Offline
Member
Joined: Nov 2002
Posts: 29
ny
is that rust on the nipple???? when was it installed???


#103633 - 11/16/02 02:16 PM Re: Loose Locknuts at Short Nipple  
mj  Offline
Member
Joined: Jun 2002
Posts: 186
meriidian, ms
what about bonding lock nuts


#103634 - 11/19/02 03:43 PM Re: Loose Locknuts at Short Nipple  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
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. [Linked Image]


Joe Tedesco, NEC Consultant


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