On this 120/208 3 phase feeder, is there any deductions I can allow on the neutral? The Code calls for 3/0 for 200amps. for copper conductors. If I am reading right, according to 220.61 (C) in the 2005 Code( don't have my 2011 code handy) says there is no reduction allowed on a 4 wire 3 phase wye connected system. Just wanted to verify. Thanks...
