[RE-wrenches] How Is Rapid Shut-Down Not A Farse...

[drake.chamberlin at redwoodalliance.org]

Is the number of firefighters hurt by PV systems still zero?

If we want to make a safer world, this is not the best place to be putting
our life energy.

> Mark-
>
> 690.56(C) provides the placard you're looking for and 690.56(B) tells
> the first responder where that 690.12 switch is, right?
>
> For 2017 there are a couple of proposals out there. One is trying to
> better educate that first responder (quickly!) as to what hazards exist.
> Another is clarifying some of the language for 690.12 such that we
> continue to have [better] array-level shutdown. Another is changing
> 690.12 to [basically] module-level shutdown, which has been signed onto
> by the IAFF, insurance companies, and... some module-level electronics
> vendors.
>
> We've installed many, many rooftop systems but we're only about 0.1%
> done with them. Regardless of how 690.12 changes, I think that in the
> next few years we'll all be revisiting every system we've ever worked on
> to make sure there's enough labeling to inform firefighters about the
> hazards. I'm curious how we're going to do that so that a 2027
> firefighter can quickly distinguish between 2014's Rapid Shutdown,
> 2017's Even Rapider Shutdown, 2020's BlockOutTheSun Shutdown, 2014's
> Rapid Shutdown That Actually Still Works, 2011's System That Will Only
> Shock You If You Cut Through a Module, and 2005's Never-Code-Compliant
> system that incorrectly has a "Rapid Shutdown" label on it because the
> homeowner noticed that their neighbor had one. Somehow we need to make
> sure firefighters know exactly what they're up against.
>
> Non-farcically,
> DKC
>
>
> On 2015/2/5 20:08, Mark Frye wrote:
>> ...without a mandatory "Stop" switch co-located with the service meter
>> or main breaker?
>>
>> How many roof top systems have been installed to date? Many, many, many,
>> many.
>>
>> OK ,now I am a first responder showing up at a home that is on fire. How
>> do I know whether or not the DC has been installed such that it provided
>> the protections afforded by 690.12? I don't. Because it is not require
>> for systems conforming to 690.12 to look any different to me than those
>> that do not.
>>
>> So does the "stop" switch become the new "fire fighters club" logo? If
>> you have the switch the FD will save your home, if you don't they will
>> let it burn down, even if you have a 690.12 compliant system that does
>> not include an "initiator switch"?
>>
>> Mark Frye
>>
>>
>>
>>
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