[RE-wrenches] 1000V System Wiring Details

[Chris Mason]

All the European spec inverters I have used would shut down at 600V so
that's not a great idea.
On systems with long runs, we use a fused switched combiner and run 1KV #6
for the home runs. But that's for very long runs. You can put a lot of
power over a #10 PV Wire at 800V working voltage.


On Wed, Mar 26, 2014 at 10:31 PM, August Goers <august at luminalt.com> wrote:

> Hi Dave,
>
> We've run all the way home with 1000 V PV wire and only made splices with
> Amphenol MC4-type 1000 V connectors. Going forward, we are going to strive
> to put inverters on the roof to minimize the expense of dealing with the
> 1000 V runs. Another interesting idea is to use the 1000 V inverters but
> just run them below 600 V and use standard 600 V wiring products. On a
> separate note, we have a lot of 208 VAC applications in the Bay Area and
> all these new neat TL inverters only run at 480 V. Someone from SMA
> recently pointed out that we can source 480 to 208 V transformers for a
> reasonable cost - we might look into that as well.
>
> Best,
>
> August
>
>
>
> *August Goers*
>
> Principal
>
> Luminalt Energy Corporation
>
> o: 415.641.4000
>
> m: 415.559.1525
>
> www.luminalt.com
>
>
>
>
> On Wed, Mar 26, 2014 at 3:01 PM, Dave Click <daveclick at fsec.ucf.edu>wrote:
>
>> Hi Wrenches-
>>
>> If you're installing 1000V systems, are you running continuous PV WIRE
>> all the way to your inverters? If not-- what splices have you found (aside
>> from MC4s and similar) that are listed for 1000V? And when transitioning
>> from PV WIRE to a cheaper conductor, what 1000V options exist beyond USE-2?
>>
>> Thanks!
>> Dave
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-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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