[RE-wrenches] center feeding Enphase

[Jesse Dahl]

So, is using the DC rated soladeck a violation?  When I mentioned the specific AC rated soladeck to the company they said they talked to Soladeck and they said the DC can be used for the AC pass thru. It seems to me we should use the AC rated for this application and not the DC.  

Jesse

Sent from my iPhone

On Jan 2, 2013, at 8:50 PM, Jason Szumlanski <jason at fafcosolar.com> wrote:

> I should have mentioned I was looking at something that isn't intended to penetrate the deck like Soladeck. I would be transitioning to conduit running along a flat roof.
> 
> Soladeck makes specific models that are AC rated. Search the archives for a recent discussion on that.
> 
> Jason Szumlanski
> Fafco Solar
> 
> 
> On Wed, Jan 2, 2013 at 9:25 PM, Jesse Dahl <dahlsolar at gmail.com> wrote:
>> I mentioned this to the powers that be on the project (when I was hired, all the materials were already on site...) to no avail.  
>> 
>> As to your comment on AC combiners, we have soladeck (DC rating on the cover) on site and will be using these.  I'm not sure about using the soladeck product on this type of system,  especially since it only say DC on the cover. The idea was to pull through the soladeck and not terminate in the box at all... I seem to remember something about this mentioned on the list a few weeks ago...
>> 
>> Jesse
>> 
>> 
>> On Wed, Jan 2, 2013 at 7:25 PM, Jason Szumlanski <jason at fafcosolar.com> wrote:
>>> Other than cost, why not just buy an extra connector and cap it. It provides a lot more flexibility in terms of locating your j-box. Or, you can use the new Engage coupler to extend the Enphase cable with standard 4 conductor Type TC-ER cable (5 conductor for 3 phase).
>>> 
>>> Not to hijack the thread, but is there a suitable AC combiner junction box for combining up to 4 strings on the roof, preferably in a compact box that fits under modules? I'm thinking something like what SolarBOS has for DC conductors. Obviously it would require appropriate circuit protection...
>>> 
>>> Jason Szumlanski
>>> Fafco Solar
>>> 
>>> 
>>> On Wed, Jan 2, 2013 at 8:18 PM, Jesse Dahl <dahlsolar at gmail.com> wrote:
>>>> Hello,
>>>> 
>>>> I am in the process of installing a Enphase system that requires center feeding the individual 15 modules circuits. I am wondering about wiring the J-Box.  I need to cut all of the boxes into the center of the runs of Engauge cable and maintain the 6" of free conductor.  To do this, I will need to pull the trunk cable towards the J-Box.  There are a few spots where doing this may pull the inverter connection points to far from the inverter.  It looks like like the spots where this will be a problem is where the circuit of modules is made up of modules from different North-South rows of racking. I took some rough measurements at the end of the day, but haven't really laid the cable out to check if it will really be problem.
>>>> 
>>>> I'm sure this is common, and easily fixed, but a conformation from another installer would surely be welcome.
>>>> 
>>>> Thanks,
>>>> 
>>>> Jesse
>>>> 
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