split nuts usages

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I don't believe I've ever worked with anyone claiming to be a professional that didn't backwrap or use some other form of liner.
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It is very rare to find any type of backwrap used in this area. I have opened a large number of these types of connections over the years and could count the number that were backwrapped on my fingers. Most of the connections I take apart are not split bolts, but are motor terminations with ring lugs and bolts.
Don
 
iwire said:
You could always just cut them off and buy new ones.
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While that's very true, many times it's just easier (ala cheaper) to be able to reuse a bug...say in a parking lot situation (hand-holes) or in a gutter.
 
don_resqcapt19 said:
It is very rare to find any type of backwrap used in this area. I have opened a large number of these types of connections over the years and could count the number that were backwrapped on my fingers. Most of the connections I take apart are not split bolts, but are motor terminations with ring lugs and bolts.
Don
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In that case, perhaps the next guy won't be cussing you ;) And it just goes to show how minimal practices can be the standard.

As motors are changed out more often than building wire, seems like that is where you (or someone) would want ease of de-terminating. :)
 
Bob NHDesigning and fabricating a device that is likely to survive 20 years or more in the environment where such plastic covers might be use is a risky thing. I suspect that such covers might fail to meet a standard of being approved for the purpose.

Tom Baker: Ilsco makes a wire tap with a plasic cover I've used them in sizes up to 500 mcm, some have been installed for 20 years with no failures to date.

I have no doubt that one could be built. I was replying to a suggestion that someone would create their own design without the development and qualification tests that usually accompany a listing of an approved product.
 
Smart,
And it just goes to show how minimal practices can be the standard.
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I don't see it that way.
As motors are changed out more often than building wire, seems like that is where you (or someone) would want ease of de-terminating.
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I do not find it a problem to determ my terminations. I do find that where the installer did not wrap the rubber tape very tightly that the termination is more difficult to remove. The few times that I have encountered joints made up with varnished cambric, it was the type with adheasive and the goo from the adheasive, took much longer to get off of the termination than does the rubber tape.
Don
 
don_resqcapt19 said:
Smart,
And it just goes to show how minimal practices can be the standard.
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I don't see it that way.
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I expected nothing less from you.

don_resqcapt19 said:
I do not find it a problem to determ my terminations. I do find that where the installer did not wrap the rubber tape very tightly that the termination is more difficult to remove. The few times that I have encountered joints made up with varnished cambric, it was the type with adheasive and the goo from the adheasive, took much longer to get off of the termination than does the rubber tape.
Don
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Goo... ooh, yuk! Sounds like it was applied adhesive side in, rather than out (aka backwrapped)...

Varnished cambric tape (vct) with adhesive wouldn't be my first choice, with the exception it was spec'd. There are other tapes?acetate cloth, polyester film, glass, paper crepe, even vinyl?which also serve the purposes of adding mechanical strength, insulating properties, and/or clean re-entry, though vct is much more widely accepted. Of the others, I prefer especially those with thermosetting rubber adhesive. However, working for EC's usually forces me to use what they supply or have on-hand.

EC&M Tape Article - Article Reprint (PDF 318.5 K)
 
Actually I like these much better than tape.
As far as the article you cited, it was written by a tape manufacture, so of course it will recomend the maximum use of tape.
Don
 
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don_resqcapt19 said:
Actually I like these much better than tape.
As far as the article you cited, it was written by a tape manufacture, so of course it will recomend the maximum use of tape.
Don
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I'd probably like "those" much better than tape, too. Any chance you can convince the EC's I work for to furnish them? (umm... that's a rhetorical question, just in case you don't recognize it)

On lining taped splices, I've even seen electricians that, not having any "liner" tape, will pre-wrap splices with cloth strips made from on-site rags with some "jap wrap" added to hold the strips in place, in lieu of wrapping directly with self-fusing rubber!
 
e57 said:
What is it that you do anyway? Enlighten me...

Some sort of consulting work?
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I think he's trying to tell you that he is an employee, and not an EC, therefore he makes no purchasing decisions.
 
Any chance you can convince the EC's I work for to furnish them?
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That would depend on your local labor rate...in my area those devices are much cheaper to use than tape because of the reduction in installation time. Also you can't really use them on the smaller motors, less than 3 hp or so, because they don't fit in the motor junction box. Of course if you really want to save time, you just use wirenuts for the motor terminations. I won't use them for that application, but many do with no problems.
Don
 
I raid my lunchbox for ziplock sandwich baggies, put one one the thing first, then apply a square of scotch #2200 vinyl pad, followed with 3M tape. Sometimes the bug ends up smelling suspiciously like tuna fish.:)
 
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