Grounded for two weeks...hopefully longer [RE-wrenches]

[David Henry]

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We just had one of our installers get tagged by a county inspector 
with a new one. He stated that the code says "all grounding 
conductors smaller than #4 shall be in conduit". Therefore he wants 
all the the #10 bare copper connecting the modules placed in conduit. 
Does anyone have a rebuttal for us?

I haven't had a chance to get to a code book yet nor is the inspector 
returning our calls to give us the NEC  basis of his statement. Any 
help would be greatly appreciated.

Keep on the sunny side,
David Henry
Harmony Farm Supply
3244 Hwy 116 N.
Sebastopol, Ca 95472
voice 707-823-9125 X14
fax 707-823-1734
david at harmonyfarm.com
www.harmonyfarm.com

At 4:16 AM -0800 4/3/04, RE-wrenches at topica.com wrote:
>Date: Wed, 31 Mar 2004 22:23:23 GMT
>From: Jeff Oldham <starpower4u at juno.com>
>Subject: RE: Grounded for two weeks...hopefully longer [RE-wrenches]
>
>
>
>
>We just finished a 20 kW ground mount and my installer called me to say he
>found a "better way to attach the modules, faster and cheaper, come take a
>look". Fearing the worse I hustled on over and found that they used #10 SS
>drill point screws w/SS washers up through the slotted channel and into the
>frame wherever they could hit (no, not the manufacturers intended holes, but
>within an inch or so). The first thing I noticed is that we now have a good
>electrical connection between the module frame and the strut, bonding all
>module frames to the entire structure. It looks like a reasonable direction
>to consider as we explore ways to ground zillions of module frames together
>on an array. I know we all want to see this get to the point of one ground
>point per array. We still bonded all frames with lugs and #10 CU. We all
>agree - there just has to be better way than this silliness.
>
>I just got back today from doing a tour for a group of 20 IBEW electricians
>and when this issue of frame grounding came up they just could not believe
>that our industry has not sorted this out and we have to "do it the hard
>way".
>
>Come on manufacturers, help us out here, this cannot be rocket science! It
>is pretty bad when it takes longer to ground a module than to mount it.
>
>-jeff o

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