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hedayatullah_hotak
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Join Date: May 2009
Posts: 3

Phase Conductors and Electrical Standards

05/18/2009 3:53 AM

Neutral size in 1/0.6 kV voltage. Is there any standard (NEC, IEC or others) to use Neutral smaller than phase conductor, if yes, in which condition we can use it.
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#1

Re: Phase Conductors and Electrical Standards

05/18/2009 11:36 AM

What is the nature of the system you are refering to? Is 347Y/600 3 phase 4 wire?

__________________
 Joe Contractor to Electrical Inspector, "What do you mean you are going to make me follow the code?".
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Anonymous Poster
#2

Re: Phase Conductors and Electrical Standards

05/22/2009 8:30 PM

The Low voltage power portion of the Code NFPA 70 covers circuits up to 600V.

There are provisions for 'reduced neutrals' for services and feeders under certain

conditions, but IIRC 1/0 was the lower limit.
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