Rebecca, Although I recommended delaying the implementation of arc-fault detectors, the Code Making Panel felt that the hazard justified the requirement. Article 90.4 clarifies the NEC's approach to your concern: ******************** 90.4 (paragraph 3) This Code may require new products, constructions, or materials that may not yet be available at the time the Code is adopted. In such event, the authority having jurisdiction may permit the use of the products, constructions, or materials that comply with the most recent previous edition of this Code adopted by the jurisdiction. ********************
This is helpful, but once a single listed product is available (this will probably happen mid 2011), a jurisdiction is likely to require it. Bill. -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rebecca Lundberg Sent: Friday, October 22, 2010 8:35 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] 2011 code changes Hello Bill and other Wrenches, I have seen comments such as this multiple times over the last few months. Could you please explain how it is allowed for code to require something that is not available? How is this not discouraging to the solar industry? I understand pushing the envelope, but as an installer this type of comment feels like a deal-breaker? Please help me understand how this is going to impact efforts towards increased renewable energy adoption. "The 2011 NEC already requires series arc fault detection, which is not currently available nor are there published standards to evaluate them. It is an interesting time with lots of changes currently underway." Rebecca Lundberg Powerfully Green, Minnesota _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & 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 _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & 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
