[RE-wrenches] Replacing grounded inverters

[Jerry Shafer]

BP modules had issues with jboxes on some modules, they were being replaced
under conditions because they might catch the roof on fire if it was shake.
Dont recall the model but fires were started in jbox from arcing.

On Jul 22, 2016 7:40 AM, "jay" <jay.peltz at gmail.com> wrote:

> Oh boy.
> Which BP models.
> I mean those things have had lots of trouble.
>
> jay
> peltz power
>
> On Jul 22, 2016, at 8:23 AM, August Goers <august at luminalt.com> wrote:
>
> Glen,
>
>
> It’s interesting you mention that you’re having AFCI issues with new TL
> inverters and old modules. We are too. We have a particular system with BP
> modules where we’re trying to figure out if we have a warranty claim
> situation. We’ve cleaned up all the DC-side wiring and still the Sunny Boy
> is tripping with AFCI errors. We think it is either corroded traces in the
> modules or perhaps bypass diode issues in the module j-boxes. More to come.
>
>
> August
>
>
> *From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
> Behalf Of *Glenn Burt
> *Sent:* Friday, July 22, 2016 5:08 AM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Replacing grounded inverters
>
>
> If you read some of the proposed changes for the 2017 NEC, it is looking
> life there will be no problem replacing isolated inverters with
> non-isolated versions. In fact the proposed wording seems to allow either
> USE, or PV wire to be used with non-isolated inverters explicitly going
> forward.
> It made me feel better about doing recent replacements.
> I'm having more trouble with the TL inverters and AFCI issues on older
> systems, however.
> ------------------------------
>
> *From: *Gary at Santa Ynez Valley Solar <Gary at SYVSolar.com>
> *Sent: *‎7/‎21/‎2016 21:43
> *To: *re-wrenches at lists.re-wrenches.org
> *Subject: *[RE-wrenches] Replacing grounded inverters
> We are all facing having to replace the old transformer based inverters
> when they run out. Really difficult to find replacements. Against code to
> replace with transformer less ones. I wonder if a DC/DC transformer could
> be installed just ahead of the transformer less inverter for isolation
> purposes? Not clear on the concept.
>
>
>
>
> Gary
>
>
>
>
> Gary Gordon
>
>
>
>    www.SYVSolar.com <http://www.syvsolar.com/>
>    PO Box 688
>    Santa Ynez, CA  93460
>    805 688-1213
>    NABCEP Certified Installer
>    CA Licensed Solar Contractor
>
>
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