Re: [RE-wrenches] IBE Battery Flags

[Ray Walters]

Hi William; I haven't seen any standard really.  I noticed that HUPs switched from 5/16" hardware to 1/4".  I'm old school like you, and prefer 5/16" hardware, however I think if you look at the lbs of compression that the 1/4" bolt can provide, it's still a fine connection.  The bolt shouldn't be carrying much current; the mating surfaces of the lags and flag terminals should. In your case, I'd just drill out the holes to 5/16".  I have a small receiver mounted vice that works well for those sort of "field adjustments". R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 03 505-8760 On 1/6/2014 3:20 PM, William Miller wrote: Friends:   We replaced a set of 24 IBE batteries recently.  The original set had all batteries with captive cables (and one flag) except one, which had two flags.  This made it easy to connect the leads from the BOS:  there was a flag on the positive and negative ends.    The new set had all batteries with cables.  Is there a standard for this?   Also, the flags had all 5/16” holes but when we untapped the lugs on the cables, the holes were ¼”.  We are very used to using 5/16” SS bolts and that is what we had in stock.  I am not comfortable using ¼” battery bolts.  Is there a standard for battery bolts?   Thanks in advance.   William       17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice   _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & 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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