Voltage drop calcs for fine-stranded cable [RE-wrenches]

[John Raynes]

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Wrenches,

I'm having problems finding a definitive answer regarding voltage drop 
calculations on fine stranded wire.

When figuring direct current resistance of cable using NEC Table 8, Note 1 
suggests that the values will likely be different for different stranding 
types.  Is there a table somewhere that documents such differences in 
resistance for X-Flex cable, or are there no significant differences?  The 
engineer I spoke with at Cobra Wire indicated that I should just use the 
NEC table, but he wasn't very convincing.

I've also submitted this question to John Wiles and will report back any 
helpful responses that he provides.

John Raynes
RE Solar
Torrey UT
435-425-2110

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