View Full Version : voltage drop?
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
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