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Old 02-27-2015, 03:51 PM   #41
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Originally Posted by macmikeman View Post
By that thinking, stranded wire would be a mess of impedence. On the contrary, splitting up a conductor into the strands lowers resistance.
I think I did not explain myself well enough, I am thinking skin effect would come into play and the splice would reduce it. I could be wrong, hey, it would not be the first time!
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Old 02-28-2015, 01:15 AM   #42
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What is "Glyped"? I was just taught to clean the wire best I could, tighten the split bolt, wrap with rubber tape then wrap with regular electrical tape (Usually Scotch 33 if it was on hand)
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Old 02-28-2015, 04:18 AM   #43
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Macmikeydude, did you parallel the bolts?

I see your theory. The EG at Burndy says the splice won't add resistance to the cable so therefore the cable has miraculously been shortened thus the resistance has been lessened. If they splice it properly which means a mechanical bond creating an electrical bond.
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Old 02-28-2015, 10:26 AM   #44
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I think I did not explain myself well enough, I am thinking skin effect would come into play and the splice would reduce it. I could be wrong, hey, it would not be the first time!
At under 600 volts?
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Old 02-28-2015, 10:39 AM   #45
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I stated an electrical fact. I blew a few people out of the water with it, nobody challenges their perceptions of the world order better then how I do. Now people think I am a big proponent of split bolts... One guy is asking me my methods for installing them. The best part is who in their right mind would add splices just to reduce vd.... Them bugs ain't so cheap..
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Old 02-28-2015, 02:01 PM   #46
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In a perfect world, splices are fine.


In the real world, the more splices you have, the more points of failure you have. The more points of failure you have, the more likely that one of them will cause a problem. If you look at any well designed system (take the space shuttle as an example), the best way to make it work well, and make it as easy as possible to fix, is to reduce the number of points of possible points of failure.

As others have mentioned, the likely causes of each splice (point of failure) are:
  • poor installation resulting in later failure
  • connector failure
  • oxidation

IMO connector failure is usually due to poor installation as well, which brings us to the last one, oxidation.

Oxidation will likely be a factor of the environment, and in most buildings with standard environmental controls, it is negligible, but in a lot of environments it can be a major cause of multiple failures.

I'm assuming the OP was talking about general line (low) voltage issues.
If you are dealing with any type of communication or control wiring that is not a simple analog signal, you have multiple other issues with connections as well, that go beyond resistance as an issue. (had to mention that)
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