3000 amp Power Supply

[Larry Furtado]

Hello everyone, I have a question on what size conductors if any I could use on a 3000amp power supply. We are testing devices anywhere from 1000amps to 2800amps @ 5 volts DC. We are using a Magna power supply that is rated @ 2800amps. We need conductors from the power supply to the fixture device. During testing the power supply is on for approximately 3-5 seconds during a test and the test consist of 3 cycles, this happens every 45-60 seconds. Any suggestion on what conductors should I land from the power supply to the fixture, also the conductors would have a length of approximately of 5' If indeed I can underrate the conductors how would I safeguard the conductors if the power supply would happen to fail and carry the full potential for an extended period of time. Any suggestion would be greatly appreciated.

 

[tom baker]

Your profile states engineering technician. I don't think this is something we can advise you on, as its outside the scope of the NEC. Who will be doing the installation? 3000 amps is a huge power supply even at 5 volts it could cause a fire if not properly protected. Send me message on how you are related to the electrical industry, who is doing the work/installation, etc. The NEC only covers premise wiring (IE building) and not test set ups