what size thwn conductor is required for 289 ampere load when ambient temprature is 124 f
K kimrichi Member Sep 27, 2012 #1 what size thwn conductor is required for 289 ampere load when ambient temprature is 124 f
david luchini Moderator Staff member Location Connecticut Occupation Engineer Sep 27, 2012 #2 700mcm - or 2 sets of 4/0 - or 3 sets of 1/0
Ponchik Senior Member Location CA Occupation Electronologist Sep 27, 2012 #3 david luchini said: 700mcm - or 2 sets of 4/0 - or 3 sets of 1/0 Click to expand... Agree. take 289 divide by .67 = 431 you take 431 and find a conductor that will carry that much current.
david luchini said: 700mcm - or 2 sets of 4/0 - or 3 sets of 1/0 Click to expand... Agree. take 289 divide by .67 = 431 you take 431 and find a conductor that will carry that much current.
jumper Senior Member Location 3 Hr 2 Min from Winged Horses Sep 27, 2012 #4 Something for you to read. http://ecmweb.com/code-basics/conductor-size-matters