Wrong Screw? That's not the real problem!

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I see that pretty often in old panels. Guys used one big lug for all the EGC's to make it a subpanel. Makes for a rough go when you're adding circuits. The other thing I see is all the EGC's hooked onto the panel feeder EGC with one big split bolt. That's what Brian John would call an application of WIT principles. 'What's In Truck'.
 
Aluminum to copper.....

And just a guess, but I'll say not all of the wires are actually in the lug (definately not the al).
 
ronaldrc said:
I hope I'm not the only one here that thinks that screw is not a problem?
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No, but I think the idea of the exercise was to comment on things other than the screw. The paint isn't scrubbed off the panel either, even if you thought that using a lug like that was a good idea.
 
mdshunk said:
No, but I think the idea of the exercise was to comment on things other than the screw. The paint isn't scrubbed off the panel either, even if you thought that using a lug like that was a good idea.
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So this is Spot the Violations, Part 83?
 
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Screw

Marc:

This image was in an article I wrote for EC&M long ago, and recently found it descrbed in a 2008 NEC magazine article update, and the discussion called upon the improper use of the sheet metal screw, that's been fixed now in the 2008 NEC.

I find many of the pictures from the magazine in other peoples presentations, I am not complaining, I just like to make some things clearer from time to time. The soap bottle, and the guy on the ladder were also in my articles, and now used all over the world.
 
joe tedesco said:
I find many of the pictures from the magazine in other peoples presentations, I am not complaining, I just like to make some things clearer from time to time. The soap bottle, and the guy on the ladder were also in my articles, and now used all over the world.
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So you personally took the picture of the man on the ladder?
 
joe tedesco said:
This image was in an article I wrote for EC&M long ago, and recently found it descrbed in a 2008 NEC magazine article update, and the discussion called upon the improper use of the sheet metal screw, that's been fixed now in the 2008 NEC.
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Joe, what exactly has changed regarding this is the 2008?
 
infinity said:
Joe, what exactly has changed regarding this is the 2008?
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Yeah I still do not see sheet metal screws in 08' 250.8 The Article is more definitive on the use of machine screws.......but nothing has changed prohibiting sheet metal screws.......
 
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dcspector said:
Yeah I still do not see sheet metal screws in 08' 250.8 The Article is more definitive on the use of machine screws.......
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It looks like the 05 prohibited the use of sheet metal screws but 08 specifies the methods permitted . There are 8 listed
 
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