I have purchased an induction unit that is 250amps 480volt three phase.
It is from a business that has been in this field since 1986.
I would like to learn more about the requirements for protection for the operator for ground faults. The unit has water cooling and all I see in the unit for protection are fuses.
Could someone refer me to the NFPA or NEC code for electrical systems with water cooling, perhaps if there are any requirement for ground interrupt.
Even a website that sells ground fault interrupt systems for this level of power?
Much appreciation for any pointers in the correct direction.