Kirk,
There is no standard diameter for PV Wire so Chapter 9 table 1 must be used. By the way, Table 1 is the code and the table in Annex C are not officially the code. They are simply informational based on the standard nominal diameters of various conductors. Many conductors have non-standard dimensions, so using Annex C blindly, without checking the diameter, is not a good idea. USE-2 and RHW-2 are good examples in addition to PV Wire where the diameter does not match the Annex C tables. Lastly, the 40% requirement in Table 1 is an absolute maximum allowed. Best practice is to go no more than 75% of the maximum allowable (about 30% fill). This is particularly important for rubberized insulators like RHW and USE since 40% fill can be very difficult to pull through longer runs regardless of how much lube is used. Bill. From: [email protected] [mailto:[email protected]] On Behalf Of Kirk Herander Sent: Friday, February 07, 2014 8:23 AM To: RE-wrenches Subject: [RE-wrenches] conductor properties of PV wire Are these listed in the 2014 code (diameter, ampacities, etc)? I don't see them in the usual Ch. 9 or 310.15 tables. Am I missing it? Kirk Herander VT Solar, LLC dba Vermont Solar Engineering NABCEPTM Certified Inaugural Certificant NYSERDA-eligible Installer VT RE Incentive Program Partner 802.863.1202 --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com
_______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
