[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
>
> cid:679355323 at 23072013-1054
>
> 17395 Oak Rd. Atascadero, CA 93422
>
> www.millersolar.com <http://www.millersolar.com/>
>
> 805-438-5600 voice
>
>
>
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