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darryl
08-09-2003, 02:45 PM
Checking to see if any one knows volt drop for #10 at 30 amps under a load lenght of wire etc. This is a r.v. park built in 70.

roger
08-09-2003, 02:56 PM
Darryl,

VD=

2 x K x D x I
______________
CM


K as far as generaly speaking would be 12.9 for copper.

D is distance

I is amps

CM is circular mill (Table 8 page 625 2002 NEC)

If you are dealing with three phase change the 2 to 1.732

Roger

[ August 09, 2003, 02:02 PM: Message edited by: roger ]

darryl
08-11-2003, 04:11 PM
Thanks Darryl