Hey boB,
This is the reference table I was using. They show 325 AWG and 325kCM
refer to the same diameter cable but I should have used kcm for clarity.
If all insulation/temp rating is the same we are back to my original
question. Anyone else able to explain this? To be safe I am leaning
toward using the combined CM number to size for current rather than 3
times the ampacity as that just makes no sense to me.
On 12/2/14 3:54 PM, [email protected] wrote:
The "area" of the conductor will be 3 times and you would think that
the NEC Ampacity would also be 3 times
that of one conductor. But one LARGE conductor with the same area
might not be as high as you think
because of insulation. I would think that ampacity of 3 cables in
parallel would be 3 times. But probably
not when you take a single cable of the 3X area out of the NEC table.
(I haven't looked at this to verify)
Also, Larry, 325 AWG 750 AWG (gauge) wire is a bit too small for
this, don't you think ?
I know... You mean circular mils...
boB
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