Does radius of curvature matter?

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KasseemF

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I have noticed that many meterbased / loadcenters are being produced from factory with conductor with sharp 90 degree bends. Does this affect the integrity of the conductor or insulation? isn't there a minimum radius of curvature to be taken into consideration?
 
KasseemF said:
I have noticed that many meterbased / loadcenters are being produced from factory with conductor with sharp 90 degree bends. Does this affect the integrity of the conductor or insulation? isn't there a minimum radius of curvature to be taken into consideration?
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There should be somewhere I think; however, I can only find minimum bending radius' for conductors over 600V, 300.34, and various cables in 3XX.24, and wire bending space needed at terminals in 312.6.

I must be missing something.:(
 
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jumper said:
Those are cables. What about individual conductors under 600V?
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Ok, I was out of it and didn't read your post well...
I don't think the NEC has a specific spec for individual cables. The manufacturer may, and these would have to be taken into account.
For the terminal bending spaces, I think you nailed it with 312.6
 
None that I know of with the exception of over 600 volt conductors and lightning protection conductors.


Besides I thought most contractors owned one of these or something similar

79273.jpg
 
masterinbama said:
None that I know of with the exception of over 600 volt conductors and lightning protection conductors.


Besides I thought most contractors owned one of these or something similar

View attachment 7864
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I do not have anything fancy like that, but I got one of these.

0004636_300.jpg
 
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