I believe Rapid Shutdown was mostly a solution looking for a problem.
The only way I see this becoming "reasonable" is to present "grievances"
to the Code Making Panel WITH a solution for their consideration. Based
on experience from being part of an outreach program that taught
approximatel
The 2 Skybox inverters I installed both were based on soft start water
pumps (grundfos) and a soft start air compressor for the garage. It cost
more to replace the electric dryer and water heater than the solar. The
owners then had a home that could run off Skybox or a small genset. These
were bo
If first responders are the point of all the rapid shutdown, there needs to
be better exemptions. I personally have a 20kW solar array on a 100 year
old unused barn at my farm. The roof is at 50 degrees slope and needs a
60ft boom lift to access. There was significant extra expense and effort
for t
Hey Wrenchers,
Wondering what you all think about NEC Article 705.95 and if downsizing the
Neutral is common practice. If your JHA accepts it and the model inverter you
are installing complies do you see any issues with downsizing the Neutral?
This section of code has been in place since 2011
To change this, we need to recognize we are "fighting City Hall", and I
doubt the CMP will be motivated to make changes on their own. Maybe
this has always been more political than technical, but it seems that
those who are opposed to the current requirements need to make it known
through the
I agree: utilize the formal process, ideally with a group of folks. If you
are a SEIA member, get involved in their Codes and Standards process. The
additional directory language you suggest is not likely to be valuable to
many first responders without significant training and documentation, and
Hello All
OutBack does offer a RSD solutions.
Please see the links below
http://www.outbackpower.com/products/safety-compliance/rapid-shutdown-kits
We also pair up with the FireRaptor RSD product
http://www.outbackpower.com/products/safety-compliance/fireraptor-rapid-shutdown
In addition the FM100
We always specify a smaller neutral for Enphase IQ systems with 240V output
where the feeder neutral is only used for the Envoy data monitor. I have
never experienced a problem with an AHJ. However, this is not based on
Article 705. It's based on 220.61.
I just note why the neutral is downsized on
I live in a small town, so our outreach probably has greater impact. We
have gone to the FD meetings, we tell them about the system types and
definitions, quiz them and follow up. So, I think depending upon
training, which is not a one shot deal, it can have an impact. They seem
relieved.
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