I have a copper conductor with a total resistance of 1 miliohm and a passing current of 4000 Amps.
I want to know what the temperature equilibrium is for a conductor in the electrical grid (conductor is located inside medium voltage switchgear). At what point is the temperature it creates equal to the temperature it loses to the environment?
The cable is inside a container full of oil (used for cooling). as said before it has a total resistance of 1 miliohm and a current of 4000 Amps passes through the conductor. the cable has a diameter of 2.5cm the temperature of the environment is 20 degrees. time can be considered infinite for the cable cannot be turned off.
when will the temperature stabilize? has my conductor melted before it could reach that point?