K-Factor

[electraman87]

What is K-Factor in an Electrical equation? How do you find it? Is their anything in the NEC about this?

 

[G._S._Ohm]

You mean the one that connects wire resistance to circular mils to wire length?

 

[electraman87]

K-Factor

You mean the one that connects wire resistance to circular mils to wire length?

Yes thats the one

 

[electraman87]

K-factor

K-factor

You mean the one that connects wire resistance to circular mils to wire length?

Please help if you can!! THANKS

 

[Little Bill]

Please help if you can!! THANKS

K = direct-current constant: This constant K represents the dc resistance for a 1,000 circular mils conductor that is 1000 ft long, at an operating temperature of 75 C. The constant K value is 12.9 ohms for copper and 21.2 ohms for aluminum. This is part of the voltage drop formula.
Hope that helps.