2000kw temporary generator.
The generator is NOT a separately derived system as the neutral is not bonded at the generator. It will connect to the 4000A switchboard via 3000A/3P CB by 8 sets of 4/0 flex cables to be laid on the ground (temporary). I have a couple of questions:
1) The required EGC per 250.22 is 400kcmil. Can I parallel this EGC using (2) 4/0 instead?
2) Can the EGC be terminated on the main ground bar in the Main Elect Room or does it have to be terminated in the Main Switchboard main ground bus.
Thanks in advance.
The generator is NOT a separately derived system as the neutral is not bonded at the generator. It will connect to the 4000A switchboard via 3000A/3P CB by 8 sets of 4/0 flex cables to be laid on the ground (temporary). I have a couple of questions:
1) The required EGC per 250.22 is 400kcmil. Can I parallel this EGC using (2) 4/0 instead?
2) Can the EGC be terminated on the main ground bar in the Main Elect Room or does it have to be terminated in the Main Switchboard main ground bus.
Thanks in advance.