Drake- on the tracker installs we've done, the method you describe is standard procedure. the exception is that on our very first we used RMC wrapped in a continuous layer of anti-corrosion tape to keep the wet concrete from attacking the zink coating. On all jobs since then we have used only rigid NM stubbed up to just inches above the surface of the finished pier. Then we transisitioned to EMT, offset and bolted firmly to the steel pipes. This process has passed muster when buried conduit penetrated a concrete foundation into the new equipment room. A exterior pier should be no different from a concrete foundation. Most any commercial electrical contractor in your area should be able to detail the process that works in that jurisdiction. Jim Duncan North Texas Renewable Energy 817.917.0527 [email protected] TECL 27398 NABCEP Solar PV Certified 031310-57 www.ntrei.com ----- Original Message ----- From: Drake To: [email protected] Sent: Saturday, December 31, 2011 8:38 AM Subject: [RE-wrenches] Pole Mount PVC
Hello Wrenches, With pole mount systems, It looks cleaner and is safer to run the PVC conduit down the pole into the concrete, and use a 90 degree elbow to come out through the side of the anchor underground. This way, the pipe is protected from mechanical damage, and there is nothing to trip over when adjusting the array for seasonal tilt. I was told that some building departments will not allow this. Has anyone had a problem with using this method, either technical or legal? How do you like to route your conduits? Thank you, Drake Drake Chamberlin ATHENS ELECTRIC LLC OH License 44810 CO license 3773 NABCEP Certified PV ------------------------------------------------------------------------------ _______________________________________________ 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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