Hi Marco: You are correct, I have noticed that most LBs do limit the fill area of your conduit. As you probably notice, making a 90 bend requires some extra area, especially for large conductors. This is one good reason to not fill the conduits to maximum capacity. Most LBs and other boxes do list the area of the box on it. If you are not sure, you should perform a calculation to determine how much of the total area you are consuming, based upon NEC requirements.
Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax: 707-769-9037 ________________________________ From: Marco Mangelsdorf <ma...@pvthawaii.com> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Sent: Thu, August 12, 2010 8:19:08 PM 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
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