Drake Chamberlin <drake.chamber...@redwoodalliance.org> wrote:
>Rather than use 3" pipe for the run, you could >use reducing bushings in a 3" LB and use it with a 2 1/2" conduit. > > >At 12:47 PM 8/14/2010, you wrote: > >>The lesson was that even if, say, for a 2 ½ >>conduit says three 350 MCMs are OK, that doesnt >>mean that a 2 ½ LB I was planning on using is rated for three 350s. >> >>For the first time ever I saw printed in the LB >>itself the specified max conduct size, in this case 4/0 for a 2 ½ LB. >> >>So for this short conduit run I upsized everything to 3. >> >>I looked at the Thomas and Betts spec sheet >>kindly supplied by Ratico on their LB offerings >>and there was no notation of max conductor sizes that I could find. >> >>marco >> >>Marco, >>I'm curious to know what you did after the >>"hard" lesson. Was it an issue of >>difficult/impossible installation, or an AHJ >>issue? It seems like the most straightforward >>solution in a situation like this is to replace >>your conduit bodies (LBs in this case) with a >>larger size, and then install reducers in order >>to leave the existing conduit runs intact. I'm >>looking at an upcoming installation where I >>would like to use 1-1/4" EMT, but will need >>1-1/2" conduit bodies to be ok with wire fill. >> >>-Hans >> >> >>---------- >>From: re-wrenches-boun...@lists.re-wrenches.org >>[mailto:re-wrenches-boun...@lists.re-wrenches.org] >>On Behalf Of Marco Mangelsdorf >>Sent: Thursday, August 12, 2010 8:19 PM >>To: 'RE-wrenches' >>Subject: [RE-wrenches] Aluminum conduit LBs >>Anyone know where I could go to find out the max >>conductor sizes that threaded Al. LBs can handle? >> >>I learned the hard way that a conduit of X >>inches that can handle conductors of a certain >>size does not necessarily mean that a LB of the >>same diameter can handle the same size conductors. >> >>Thanks, >>marco >> >> >>No virus found in this incoming message. >>Checked by AVG - www.avg.com >>Version: 9.0.851 / Virus Database: 271.1.1/3067 >>- Release Date: 08/12/10 08:34:00 >>_______________________________________________ >>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 > >Drake Chamberlin >Athens Electric >OH License 44810 >CO License 3773 >NABCEP TM Certified PV Installer >Office - 740-448-7328 >Mobile - 740-856-9648 >_______________________________________________ >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
