[RE-wrenches] ground mount wiring non-accessibility

Phil Schneider phil at CEsolar.com
Tue Jan 27 19:03:33 PST 2009


William and all,

It is new in the 2008 NEC version.

Phil

Phil Schneider, system engineer
Creative Energies
www.CreativeEnergies.biz
307.332.3410 Lander, WY
208.354.3001 Victor, ID




From: William Miller <wrmiller at charter.net>
Reply-To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Date: Tue, 27 Jan 2009 17:44:44 -0800
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: Re: [RE-wrenches] ground mount wiring non-accessibility

Phil:

In which code version is the passage below found?  I have the 2002 and the
2005 on CD Rom and it is in neither.  As such, local inspectors are not
requiring any protection of accessible conductors.  As such, our wire guard
is a voluntary upgrade and consequently, hard to justify.  Parents and
grandparents are amenable in many cases, however.


William Miller


At 03:41 PM 1/27/2009, you wrote:
> William,
> 
> Your techniques look very clean and long lasting ­ thanks for the link.  Do
> your inspectors consider the 4² aluminum wire guard as rendering the wiring
> inaccessible?  Anybody else have feedback from their inspectors?  Thanks
> again.
> 
> Phil
> 
> Phil Schneider, system engineer
> Creative Energies
> www.CreativeEnergies.biz <http://www.creativeenergies.biz/>
> 307.332.3410 Lander, WY
> 208.354.3001 Victor, ID
> 
> 
> 
> 
> From: William Miller <wrmiller at charter.net>
> Reply-To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Date: Tue, 27 Jan 2009 14:45:05 -0800
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Subject: Re: [RE-wrenches] ground mount wiring non-accessibility
> 
> 
> 
> http://mpandc.com/practices/Technical_Procedures/PV_wiring/PV_wiring.html
> 
> 
> 
>  <http://mpandc.com/practices/Technical_Procedures/PV_wiring/PV_wiring.html>
> At 02:24 PM 1/27/2009, you wrote:
>> Wrenches,
>> 
>> In regards to 690.31 (A) which requires readily-accessible PV source and
>> output circuits above 30 V to be installed in a raceway, have any of you
>> come up with a method you think works well and is cost-effective?  I know
>> this was discussed a while back, I¹m wondering if anybody has done this a
>> couple times now and has found a system you like.  Anybody compare the cost
>> between fencing and enclosing the wiring on the backsides of the modules?
>> We bid on this particular system in early 2008 before we made the change in
>> our practices ­ 27 kW in two subarrays installed on ULA.
>> 
>> cheers,
>> Phil
>> 
>> Phil Schneider, system engineer
>> Creative Energies
>> www.CreativeEnergies.biz <http://www.creativeenergies.biz/>
>> <http://www.creativeenergies.biz/>
>> 307.332.3410 Lander, WY
>> 208.354.3001 Victor, ID
>> 
>> 
> 
> 
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