[RE-wrenches] Exploding RSD Unit
Ray
ray at solarray.com
Sat Aug 28 12:20:11 EDT 2021
All of these new code required safety features have a detrimental effect
on reliability. That's not a huge deal with GT, but off grid, this can
become a serious safety issue in itself, as the homeowner loses
communications, water, heat, and frozen food.
There are opponents of solar energy that are laughing at us now, for
being scared of our own shadow, when we as an industry have had an
overall excellent safety record that goes back 40 years. We need to take
a serious look at which safety issues are real, and which are not.
Standardizing PV connections is very important. Module level RSD is not.
Ray Walters
Remote Solar
303 505-8760
On 8/28/21 9:46 AM, Dave Angelini Offgrid Solar wrote:
>
> The Schneider RSD is decent. At least it is useable as a 600vdc disco.
> Wink The few offgrid homes that were required to use this had the Tigo
> units on the array panels and wireless comm to the RSD. As soon as the
> inspector was done, those went to Ebay. I never use a roof but have
> used a barn for panels.
>
> AFCI, GFCI, and now RSD are just more things to fail when you need
> them the most, like during a wildfire or hurricane.
>
> I know you folks have to do what you need to do to stay in business.
> For me, electronics are *in* a covered building.
>
> Always!
>
>
> *Dave Angelini Offgrid Solar "we go where powerlines don't"
> http://members.sti.net/offgridsolar/
> <http://members.sti.net/offgridsolar/> e-mail offgridsolar at sti.net
> <mailto:offgridsolar at sti.net> text 209 813 0060*
>
> On Fri, 27 Aug 2021 07:48:34 -0800, James Jarvis <jj at aprsworld.com> wrote:
>
>> So who has a good reliable off grid RSD? It all looks like failure
>> prone garbage to me.
>>
>> Thank you,
>>
>> -James Jefferson Jarvis
>> APRS World, LLC
>> +1-507-454-2727
>>
>> (Sent from my phone. My apologies for spelling errors and brevity.)
>>
>> On Fri, Aug 27, 2021, 05:02 Tump <tump at swnl.net
>> <mailto:tump at swnl.net>> wrote:
>>
>> I would once again say that; we as an industry can influence not
>> only the writing of the code but with what we are /buying/ OR
>> /not buying./
>> If the devices we are required to install to make things "more
>> safe & reliable", at the cost of our livelihoods & reputations,
>> we all need to make the folks that are building the RSD crap and
>> those who require installation of questionably safe & reliable
>> crap aware of these problems.
>> WE can thru either going to the code development meetings AND
>> NOT buying or installing this stuff. Not too easy when a huge
>> amount of solar is rooftop installs. As many of the installers in
>> the NE know its not a single level ranch were installing this
>> stuff on, short season & man lift required.
>> Tell your supplier why you are not buying that brand, let your
>> supplier & folks on the list what manufacture has good reliable
>> products AND tech support that we can understand, who we can get
>> in a timely fashion, and get the satisfaction of a prompt
>> replacement. IF we don't sell it they won't have a job or a market.
>>> On Aug 26, 2021, at 2:09 PM, Jeremy Coxon
>>> <jcoxon at sunwindpowerinc.com <mailto:jcoxon at sunwindpowerinc.com>>
>>> wrote:
>>>
>>> Carl,
>>> Did you get any kind of joy out of APSmart on that failure?
>>> I will say that their tech support guy did at least try to be
>>> helpful, but the language barrier was really really steep and
>>> their distribution channels are less than ideal. Their response
>>> to a request for compensation was that they would not be
>>> profitable if they had to pay for truck rolls for such a low
>>> cost item. I really don't think they GET IT. We've been in
>>> business for over 16yrs and this one failure could easily have
>>> ended that run.
>>> I cannot imagine we're alone here. I was told by AP that their
>>> failure rate was 0.2%. Now, I come from a reliability
>>> engineering background in petro chemical/ big pharma where a
>>> 0.2% failure rate would be catastrophic. Can you imagine that 2
>>> out of every 1000 pills made could cause death? We engineered
>>> secondary systems and multiple quality checks to contain
>>> catastrophic consequences for components that had know failure
>>> rates higher than acceptable values. A simple solution to this
>>> fire initiation issue would be a metal enclosure instead of
>>> plastic casing. That still doesn't really solve the problem of
>>> extra connections though.
>>>
>>> Best Regards,
>>> Jeremy Coxon NABCEP # 091308-21
>>> _______________________________________________
>>> List sponsored by Redwood Alliance
>>>
>>> Pay optional member dues here: http://re-wrenches.org
>>> <http://re-wrenches.org>
>>>
>>> List Address: RE-wrenches at lists.re-wrenches.org
>>> <mailto:RE-wrenches at lists.re-wrenches.org>
>>>
>>> Change listserver email address & settings:
>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>
>>>
>>> There are two list archives for searching. When one doesn't
>>> work, try the other:
>>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>>> <https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/>
>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>> <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org>
>>>
>>> List rules & etiquette:
>>> http://www.re-wrenches.org/etiquette.htm
>>> <http://www.re-wrenches.org/etiquette.htm>
>>>
>>> Check out or update participant bios:
>>> http://www.members.re-wrenches.org
>>> <http://www.members.re-wrenches.org>
>>>
>>
>>> *Tump3391 at gmail.com <mailto:3391 at gmail.com>* *www.SWNL.net*
>>> Solarwinds Northernlights *//*
>>> */ Serving Mid Coast Maine & Northern California/**/
>>> /**/ 207-832-7574 Cl. 610-517-8401 /*
>>> *//**/Blair "TUMP" May/*
>>>
>>> */ ******** MAINE'S CHARTER ********
>>> /**//**/NABCEP "Certified PV Installer"/**/
>>> /**/
>>> ******** MAINE'S CHARTER ********
>>> /**/Trace Xantrex "Certified" Dealer / Installer"/*
>>>
>>
>>
>> _______________________________________________
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>> <http://re-wrenches.org>
>>
>> List Address: RE-wrenches at lists.re-wrenches.org
>> <mailto:RE-wrenches at lists.re-wrenches.org>
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>
>>
>> There are two list archives for searching. When one doesn't work,
>> try the other:
>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>> <https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/>
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>> <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org>
>>
>> List rules & etiquette:
>> http://www.re-wrenches.org/etiquette.htm
>> <http://www.re-wrenches.org/etiquette.htm>
>>
>> Check out or update participant bios:
>> http://www.members.re-wrenches.org
>> <http://www.members.re-wrenches.org>
>>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20210828/c3bc6339/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smiley-wink.gif
Type: image/gif
Size: 350 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20210828/c3bc6339/attachment.gif>
More information about the RE-Wrenches
mailing list