This is an amazingly timely post for me! I was just thinking of asking the same question since i have a couple of ground mount installs coming up with concrete pillars/galvanized anchor bolts/aluminum channel base. I notice that DPW for example specs galvanized pipes to be attached with u-bolts to their aluminum racking in their LGM racks.
Anxiously awaiting the collective wisdom... On Wed, Oct 5, 2011 at 11:23 AM, Jeff Yago <jry...@dtisolar.com> wrote: > For years we have used standard mounting racks like UniRac rails bolted > together with stainless-steel hardware. On larger arrays this usually means > bolting their extruded aluminum module rails to galvanized 3” pipe supports > for ground mounted arrays.**** > > ** ** > > We have recently received several “flags” during the engineering review > process of our design documents on state funded projects stating all bolted > connections between aluminum and galvanized steel will require neoprene > washers to prevent corrosion.**** > > ** ** > > Any of you run into this requirement or have had any problems? The only > issues we ever see with corrosion is mixing copper and aluminum such as > where somebody used wrong type module frame ground connectors.**** > > ** ** > > Jeff Yago**** > > _______________________________________________ > 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 > > > -- Shine On! Kris Schmid Legacy Solar, LLC 864 Clam Falls Trail Frederic, WI 54837 www.legacysolar.com 715-653-4295 NABCEP Certified PV Installer BSEE
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