I’m trying to size some welding conductors per the following information. The welder will be used once a day for 2 seconds only. 6000A of current will be drawn through the conductors during this time. The power supply provides 10v. The conductors shall be 8 feet in length.
It seems like the largest welding cables are 500mcm. I would like to do a calculation that shows the temperature rise in the cable would not exceed the maximum rating of the cable, even though the cable is not rated for 6000A. Can anyone help me with this?
The cable I’m looking at is general cable carolprene 500mcm (500kcmil) stranded copper welding cable.