Andries,
     I would be seriously concerned about flash over. Even 400 volts is=20
high enough to have to worry about flash over in the right=20
circumstances. I would like to see how they are doing 1000 volt PV=20
installations. Very dangerous. Lots of power there. Also goes the same=20
for 1.5KV systems but even more so.
Thanks,
rich!

On 6/24/2014 1:40 AM, Andries Tip wrote:
> It gets even better:
>
> A friend of mine did research in Germany on 1000V PV-systems. These syste=
ms have their own problems; the large system voltage
> can create ion migration and cause the panels to drop their performance (=
Potential Induced Degradation). Not to mention the
> safety measures than need to be taken.
>
>

--=20
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