Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread Allan Sindelar
Marco, Seems to me he's right. It carries the net current difference between L1 and L2 from the transformer to the loads. But not having any EE training, I'm willing to learn better. Allan

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread Exeltech
), the neutral leg carries current. Dan --- On Thu, 5/13/10, Allan Sindelar al...@positiveenergysolar.com wrote: From: Allan Sindelar al...@positiveenergysolar.com Subject: Re: [RE-wrenches] current carrying conductor To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Thursday, May 13, 2010, 4:51 PM

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread David Katz
Marco, When you are drawing 120 VAC, the neutral is a current carrying conductor. David David Katz Chief Technical Officer AEE Solar 1155 Redway Drive P.O. Box 339 Redway, CA 95560 Tel (707) 825-1200 Fax (707) 825-1202 dk...@aeesolar.com mailto:da...@aeesolar.com www.aeesolar.com

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread William Miller
Marco: You have opened a can of worms. I hope you are happy! Are you looking for the legal definition or to discover if the neutral conductor actually carries current? The answer to the legal definition is in 310.15(B)4 (2002), and the answer is: It depends (on the type of service). This

[RE-wrenches] current carrying conductor

2010-05-13 Thread Marco Mangelsdorf
Thanks for sending that link, William. OK.let's try it from a different perspective. When you're running, say, three three-phase hot conductors from point A to point B with a neutral conductor, should that neutral be considered current carrying from the perspective of more than three

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread Kent Osterberg
Marco, Take a look at 2008 NEC 310.15(4)(a). The neutral conductor isn't counted for the purpose of NEC 310.15(B)(2)(a) when it is part of a circuit where it only carries the unbalanced current. Kent Osterberg Blue Mountain Solar Marco Mangelsdorf wrote: Thanks for

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread William Miller
Marco: Will non-linear loads be expected? If so, the neutral is considered to be a current carrying conductor and needs to be counted. If no non-linear loads, then the neutral is not counted. Code citation below (2008): 310.15(4) Neutral Conductor. (c) On a 4-wire, 3-phase wye circuit

Re: [RE-wrenches] current carrying conductor

2010-05-13 Thread Marco Mangelsdorf
How about some clear definitions-for-dummies of 1) linear loads and 2) non-linear loads? marco Marco: Will non-linear loads be expected? If so, the neutral is considered to be a current carrying conductor and needs to be counted. If no non-linear loads, then the neutral is not counted.