Found the thread, very helpful.... thanks Glenn. The current parallel discussion on Battery Cables REvisited is helpful too. The inspector (She, btw) is extremely thorough. Although she has asked for proof of purpose-specific listings on just about everything, it seems I misquoted her in my previous post; I looked up her earlier plan review comments, and here's her original quote (from when my plans said to use MTW for the battery cable): "MTW is not NEC approved for use". I think that to her, if it isn't explicitly in the NEC then I can't use it (lists go from being partial & inclusive to complete & limiting). -Phil
On Mon, Nov 29, 2010 at 6:03 PM, Glenn Burt <[email protected]> wrote: > Hi Phil, > > > > I posted some information that is relevant back in March of 2009. It should > be in the searchable archives… > > > > -Glenn Burt > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Philip Boutelle > *Sent:* Monday, November 29, 2010 8:08 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] NEC 690.74 > > > > Wrenches, > > > > We have a string of batteries being inspected by a local AHJ. In plan-check > comments, I was asked to ensure that the flexible cable was UL-listed, so we > made sure of this when it came from the suppliers. We used 4/0 RHW-2. Now > our inspector is asking if "RHW-2 is fine-stranded in Article 400 of the NEC > as required by 690.74?" > > > > Article 400 doesn't explicitly define any cable types for use in battery > systems, and the one general disclaimer is in 400.4: "Types of flexible > cords and flexible cables other than those listed in the table shall be the > subject of special investigation". > > > > Has anyone had a similar request before? Anyone done a "special > investigation" on cables, and have results to share? Any other thoughts? > > > > Thanks for any help, > > > > -Phil > > Real Goods Solar > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > 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 > > >
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