Re: [RFI] NIMBY - Here’s how I dissuade my neighbors

[Mike NA6MB <na6mb.mike@gmail.com>]

On my system, the shut off is on the DC input to the bulk converter at 
the converter.
The label on the metal conduit says 600VDC.
The DC wires on the roof are  still live.
That would protect someone working on the AC panel or solar converter, 
but not up on the roof.
NA6MB



On 12/13/2022 6:25 PM, Michael Carter wrote:
> NFPA 70, the National Electrical Safety Code, describes
> requirements for rapid shutdown of photovoltaic arrays
> in Article 690.12.  Most local Authorities Having Jurisdiction
> (local building code boards) adopt NFPA 70 requirements,
> but not all do.  First responders (primarily firefighters) are
> aware of the rapid shutdown requirement for photovoltaic
> systems mounted on buildings - spraying an occluding
> substance over a PV array should not be necessary.  If
> a PV system is installed in violation of local codes that
> incorporate NFPA 70 by reference, that is another matter
> entirely.  Article 690.12 doesn't prevent potentially
> hazardous voltages from being present on building-mounted
> PV systems even if the rapid shutdown function has been
> activated (e.g. DC disconnect of the array modules by a
> manual switch), but it does limit the extent of the hazard.
>
> Mike, K8CN
> (father of paramedic/firefighter, and licensed Professional Engineer)
> ________________________________
> From: RFI <rfi-bounces+mike.carter=unh.edu@contesting.com> on behalf of Bob Kozlarek 
> WA2SQQ <wa2sqq@gmail.com>
> Sent: Tuesday, December 13, 2022 5:10 PM
> To: rfi@contesting.com <rfi@contesting.com>
> Subject: [RFI] NIMBY - Here’s how I dissuade my neighbors
>
> CAUTION: This email originated from outside of the University System. Do not 
> click links or open attachments unless you recognize the sender and know the 
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>
>
> I’ve had a few people in my neighborhood consider installing solar panels.
> I spoke to our fire inspector about the protocol the department has for
> fighting a fire involving solar panels on the roof. Short version of the
> long story is they will not go up on a roof or engage with the fire until
> the panels are disabled. They are looking into a black tar like spray that
> could be applied to the panels to disable them. He explained that the light
> on an evening from a full moon can produce enough voltage to be very
> hazardous to a fire fighter. New Jersey solar panel installers also
> deceptively don’t inform the customer that they are signing away their
> energy credits. In three cases, when my neighbors found out about this,
> their response was thanks but no thanks I’m not interested. --
>
>
>
> *Best 73 de WA2SQQElmwood Park, NJ"The only dumb questions are those we
> don't ask"*
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--
Thanks,
Mike
NA6MB

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