[RE-wrenches] Bonding bushings?

[Jesse Dahl]

Thanks for the info, I figured as much.  So according to 250.64(E) if we enter and exit a gutter on our way from the AC Combiner to the utility disco and then to the CT cabinet outside we will need to bond in the gutter and in the utility disco. I can then run in PVC from the utility disco to the CT cabinet and stop the bonding. 

Of course PVC all the way would have prevented this, but it would've been an eye sore next to all the existing EMT. 

Jesse 

Sent from my iPhone

On Jan 25, 2013, at 9:51 AM, Alex Cozine <acdc.cozine at gmail.com> wrote:

> Just ran in to that.  two foot EMT raceway from a production meter into the grid panel.  we had to take it out of the emt and run it on the outside to make the inspector happy, I mean, to meet code.
> 
> 
> On Thu, Jan 24, 2013 at 10:22 AM, August Goers <august at luminalt.com> wrote:
>> Jesse,
>> 
>> Any metallic raceway that has a GEC running through it needs bonding. So,
>> if you've got the Enphase DC-GEC running through it then, yes, it would
>> need bonding fittings. At least that's my take on it.
>> 
>> Check out NEC 250.64(E) towards the second half of the paragraph. 2011 NEC
>> has a nice clarification point and directs you to 250.92(B)(2) through
>> (B)(4).
>> 
>> Best,
>> 
>> August
>> 
>> 
>> August Goers
>> 
>> Luminalt Energy Corporation
>> 1320 Potrero Avenue
>> San Francisco, CA 94110
>> m: 415.559.1525
>> o: 415.641.4000
>> august at luminalt.com
>> 
>> -----Original Message-----
>> From: re-wrenches-bounces at lists.re-wrenches.org
>> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jesse Dahl
>> Sent: Thursday, January 24, 2013 8:45 AM
>> To: Wrenches
>> Subject: [RE-wrenches] Bonding bushings?
>> 
>> If you are using micro inverters and terminating them in an AC combiner
>> panel, does the feed for the AC combiner panel (125A) need to have bonding
>> bushings for the ground wire?  In other words is this ground wire a
>> GEC/Equipment ground like might be used if running an inverter output to a
>> panel?  The raceway is already in and is EMT.
>> 
>> Thanks!
>> 
>> Jesse
>> 
>> Sent from my iPhone
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> 
> 
> -- 
> Alex Cozine
> NABCEP Certified Solar PV Installer™
> Journeyman Electrician
> 
> Brothers Electric Solar
> brotherselectricsolar.com
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