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General wiring #83652
02/11/03 03:00 PM
02/11/03 03:00 PM
EVAD7  Offline OP
Joined: Mar 2002
Posts: 37
Does a system need to be extended throughout the entire building? for example, three phase 4w 240 Volt, Feeder just for 3 phase load, Do you carry the neutral even if it isn't used?

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Re: General wiring #83653
02/11/03 03:36 PM
02/11/03 03:36 PM
Pearlfish  Offline
Joined: Sep 2002
Posts: 83
Chicago Ridge, Il, USA
It depends on how forward-thinking you want to be. You didn't give enough information for a better answer. It's cheaper to install a little extra now, than re-do the work later. What if you need to install some control circuits?

Re: General wiring #83654
02/11/03 03:44 PM
02/11/03 03:44 PM
EVAD7  Offline OP
Joined: Mar 2002
Posts: 37
This is a code question,is there any requirement to extend the system in each feeder?

Re: General wiring #83655
02/11/03 05:09 PM
02/11/03 05:09 PM
Len_B  Offline
Joined: Jan 2003
Posts: 53
New Hampshire
There is no requirement to install a neutral in a feeder or branch circuit that does not utilize it.

Re: General wiring #83656
02/11/03 06:06 PM
02/11/03 06:06 PM
Redsy  Offline
Joined: Mar 2001
Posts: 2,056
Bucks County PA
What you're saying rings a bell, but I can't find it.

Re: General wiring #83657
02/11/03 07:29 PM
02/11/03 07:29 PM
Ron  Offline
Joined: Mar 2002
Posts: 582
White Plains, NY
The neutral needs to be brought to the main disconnect if it is a 3 phase 4 wire service.



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