[RE-wrenches] Rooftop wiring methods between multiple subarrays

[R Ray Walters]

Except for coastal installations.... where  EMT is NOT  recommended  
outdoors, PVC browns out and warps, and we should therefore use  
product X???

R. Walters
ray at solarray.com
Solar Engineer




On Oct 9, 2009, at 11:38 AM, William Miller wrote:

> August:
>
> I suggest the use of EMT with proper fittings to protect high  
> voltage, high amperage DC Wiring on rooftops.  Sure it is time  
> consuming, but high quality, reliable craftsmanship will always be  
> thus.
>
> William Miller
>
>
>
>
>
>
>
> At 11:07 AM 10/8/2009, you wrote:
>
>> Hi Wrenches,
>>
>> I‚m looking for fresh ideas on how to run USE-2 wires between  
>> subarrays on rooftops. Let‚s say we have a flat roof commercial  
>> system with dozens of separate rows of modules. How would you folks  
>> run the USE-2 wiring between these arrays? We‚ve been using J-boxes  
>> and EMT which is robust but time consuming. I‚ve also used strut  
>> with a cap strip on the top which effectively makes a wire raceway  
>> but it is difficult to properly ground both ends of the raceway and  
>> is also time consuming.
>>
>> Looking forward to hearing your ideas. Best, August
>>
>
> Please note new e-mail address and domain:
>
> William Miller
> Miller Solar
> Voice :805-438-5600     Fax: 805-438-4607
> email: william at millersolar.com
> http://millersolar.com
> License No. C-10-773985
>
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