voltage drop

[mryan]

where do you find the value of k in voltage drop calculations ?

 

[augie47]

welcom to the Forum.

try this....

http://www.selfhelpandmore.com/home-wiring-usa/definitions-calculations/voltage-drop-2002.php

 

[Rockyd]

Heads up! My Kaspersky anti-virus alarm went off big time on Augie's link, so left it alone. The "K comes from Chapter 9, talbe 8 of the NEC -

It's the DC resistance for 1000Kcmcm at a 1000 ft, at 75C'.

Hence 12.9 for Copper and 21.2 for Aluminum

 

[augie47]

strange..I got no warning...nor do I on "clicking"..but thanks for the warning.... your numbers are the same as on the link.