Carl: You are very welcome.
I'd be willing to provide a metric chart. I need some information to get started. In the US, practices are dictated by our NEC which provides the resistance values for standard wire gauges. By putting the values in the Code, it gives all parties a reference and (hopefully) avoids arguments about conflicting data.
I downloaded the New Zealand Electrical Code of Practice (NZECP 51:2004) and did not find in it any resistance values. Is this the correct document to look in? Are resistance values in there and I am just not finding them? If the values are not in the NZECP, where do professionals in New Zealand look for the resistance values?
There is a slight difference in resistance (impedance) between AC and DC circuits as listed in the NEC. I used the higher values to allow conformity in all cases. Let me know if there is a different consideration for AC versus DC in New Zealand.
Do you know what other Metric based nations use for determining wire resistance values?
Thanks in advance. William Miller At 04:32 PM 2/3/2013, Carl Emerson wrote:
Hi William, Just a comment on the spreadsheet. You have made provision for Centigrade, being friendly to those outside USA.It would be nice to have reference to wire cross sectional area in mm² as AWG is foreign to lots of folks from outside the US who reference your site.I must say that your making information freely available over the years has assisted many.Regards Carl Emerson fcb06a.jpg 022 630 9689 <mailto:[email protected]>[email protected] solarking.net.nz PO Box 305-130, Triton Plaza, Auckland 0757 ----------From: [email protected] [mailto:[email protected]] On Behalf Of William MillerSent: 4 February 2013 12:06 p.m. To: RE-wrenches Subject: Re: [RE-wrenches] Wire sizing calculator online Todd:Thanks for the plug. The copy you have is outdated. Here is where you will find the new and improved version: http://millersolar.com/MillerSolar/Resources/_Resources.htmlWhat we created in the Miller Solar wire sizing spreadsheet is an opportunity to compare the voltage drop for all common wire sizes in one view so you can evaluate the tradeoffs for various scenarios.Questions or comments are appreciated. William Miller At 09:54 PM 2/1/2013, [email protected] wrote:thank you... this is useful. do you have william millers calculator too? its attached in case you dont.todd On Friday, February 1, 2013 5:23pm, "Solarguy" <[email protected]> said: I stumbled onto this wire sizing calculator that gives NEC qualified data. Wikipedia had a link to it. <http://www.cablesizer.com/>http://www.cablesizer.com/ Jim Duncan North Texas Renewable Energy Inc <http://www.ntrei.com/>www.ntrei.com NABCEP PV 031310-57 TECL-27398 <mailto:[email protected]>[email protected] 817.917.0527 NABCEP Logo Sent from Finest Planet WebMail. _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.orgList-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.orgList rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this incoming message. Checked by AVG - www.avg.comVersion: 8.5.455 / Virus Database: 271.1.1/5567 - Release Date: 01/29/13 19:34:00Miller Solar Voice :805-438-5600 email: [email protected] http://millersolar.com License No. C-10-773985 _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.orgList-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.orgList rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this incoming message. Checked by AVG - www.avg.comVersion: 8.5.455 / Virus Database: 271.1.1/5579 - Release Date: 02/03/13 17:56:00
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