Dear fellow wrenches,
Does anyone have suggestions for the 'best' way to keep up with product
availability for meeting 690.11 on DC AFCI? I understand that when this
code section was written there was no available device, and know that at
least several companies are working on devices. How will I
RE Question #2:
Article 100 defines a service as:
Service. The conductors and equipment for delivering electric energy from the
serving utility to the wiring system of the premises served. (emphasis added)
PV system wiring simply does not fit that definition. The PV system is not part
of the
You can see what products UL has listed (though not other NRTLs) at:
www.ul.com
Near the bottom of the page on the right hand side click on:
Online Certifications Directory
Into the UL Category Code box enter:
QIDC (for inverters with integrated dc arc-fault)
or
QIDC2 (for dc arc-fault
Rebecca,
First off, nice install on the four SiE pole mounts!
Second, as long as we are talking strictly grid-tied systems, not AC
coupled or battery backup, it seems like Solar should be viewed more like
an appliance. It supplements the service at your house. That being said,
you've got a
Midnite Solar has some DC arc fault equipment both built into their
charge controllers (for battery based systems) and their Combiner
boxes. The nice thing about having AFCI at the combiner is that it
actually protects the wiring from the array to the inverter, so if an
arc is occurring in
I have an off-grid client who is having trouble with his aging Xantrex
SW4024 inverter and is considering an upgrade. I need some advice.
One of his problems with his present system is that he can't run his 3
HP 240VAC table saw on the 4024. He'd be content to run his generator
for any long
HI Hilton,
Before you go anywhere you need to know what the draw on this motor is.
I've seen 3 hp motors not be able to start on a 15kw genny.
Why? Just horrible motors thats all.
jay
peltz power
On Oct 13, 2012, at 11:16 AM, Hilton Dier III wrote:
I have an off-grid client who is having
I have had inverters ruined by drywall dust, it literally filled them within
a couple years as the owner worked on his house. Next thing I am getting a
call that it would not work..
I doubt that sawdust would be any different.
Later,
Bob Ellison
From:
Hi Nathan and Wrenches. Sharkey asked me to post this for him:
In response to Nathan Stumpff, I designed and use a microprocessor-based dump
load to keep my RE power off the grid:
http://www.mrsharkey.com/solar-power-diversion-load-controller (see links at
the top of this page for previous
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