Does anyone have any experience with the GB Industrial batteries - I have
no knowledge of them. I have a client who wants to purchase their 2-volt,
2144 amphour batteries, and their pricing is much better than anything
that I can get elsewhere. They are looking to replace an existing bank (2
FYI. If you have any questions, please direct them to Larry Sherwood,
off-list.
Greetings!
Work is beginning on revisions to the 2017 National Electrical Code. This
is your opportunity to collaborate on proposals to make changes to this
important code.
Formal code proposals by paper are due
Hi Ray,
I noticed this discrepancy as well and am confused by their ratings.
Jerry, have you seen anything to either confirm or make you doubt GB's ah
ratings?
Thanks,
Howie
--
Howie Michaelson
NABCEP Certified PV Installation Professional™
Catamount Solar, LLC
Renewable Energy Systems Sales
Don't utter the word tap. :)
See:
http://www.soligent.net/documents/HappyLandings_v3.pdf
We usually specify a fusible disconnect for overcurrent protection when
grouping the PV AC combiner with the main premises disconnect is not
practical.
Jason Szumlanski
Fafco Solar
On Wed, Mar 12,
One big omission, in the otherwise fine Soligent white paper, is that the 60A
minimum disconnect has to be rated as Service Equipment. Generally this means
a Heavy-Duty safety switch or Service-rated load center with Main breaker.
I don't see why an AC breaker panel, with a Main breaker,
Beware of breakers used as service disconnects. Most in the range suitable for
a supply side connections for PV are really branch circuit rated with 10k AIC
which is generally too low for the utility fault current they may be exposed to.
If you can get a statement from the utility with available
Hi Kirpal,
With regards to your question about what size solar system will be feeding
this large battery bank, we are still trying to optimize the design a bit.
However, the the preliminary design was at about a 25 kW. During peak
production, we expect about 500A(!) to be heading into the
The D222NRB General Duty safety switch is service rated. Why do you say it
has to be heavy-duty?
Jason Szumlanski
Fafco Solar
On Wed, Mar 12, 2014 at 5:32 PM, Brian Teitelbaum
bteitelb...@aeesolar.comwrote:
One big omission, in the otherwise fine Soligent white paper, is that the
60A
Unless there is a compelling reason to use AutoCAD, like interoperability
with other trades and professions, consider Sketchup Pro and Layout from
Trimble. $500.
I learned it over a weekend, and with the Instant Roof Pro plugin ($39) I
was making convincing and accurate renderings in almost no
Glenn,
The vast majority of service equipment for residences is rated 10k AIC.
Although utilities may say they have some residential services that exceed 10k
short circuit availability, it is still pretty rare.
Using single phase gear on a 3-phase commercial installation is a different
William,
Go to http://www.associatedsoftwaresales.com/home.php . They do a 48-month
lease of 2013 AutoCAD LT for $325. If you really need AutoCAD, there is no
cheaper route that I know of.
Bill.
From: re-wrenches-boun...@lists.re-wrenches.org
I use Turbocad, it can open Autocad
files, and is much more affordable. Seems to work well.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 3/12/2014 5:16 PM, Jason Szumlanski wrote:
I think the heavy duty version stems from its 600V rating for AC or DC, and
may not be necessary for 240V Service Equipment.
We always picked the heavy duty models, but I think that was primarily to
use as DC discos.
I don't see any reason why a general duty model could not be used in a
240VAC
William
I second using Sketchup and Layout for $500 . I have seen the add on Roof
Pro Plug in and Skelion ( $199) demo that lays out the array and links to
PVwatts for power analysis. Plus Combined with google earth , does great
shading analysis I. I think you can do a quick design in an
August, Wrenches:
I cannot operate without a true 3D cad program. I cannot operate in the
environment I am in using third party software. I really like the idea of
leasing. I would out $525 for 4 years of AutoCAD, about the same for owning
a lesser program. Granted, AutoCAD has a steep
The only difference in AutoCad and the Lt version is the lack of 3D
capability.
Autocad also will save directly as a pdf file as long as you are not using
any Microsoft OS newer than XP.
It's not difficult to learn since you will only be using a dozen or two of
the thousands of commands for 99%
Some state schools teach auto cad and of you are in the class learning the
application you can get a student version for free
Jerry
On Mar 12, 2014 4:09 PM, William Miller will...@millersolar.com wrote:
Friends:
The 3D CAD software I have been using is obsolete. I have decided to
upgrade
Hi William,
One thing I have found with AutoCad is that it helps to start with
something. A big blank model space is an intimidating place with nothing
in it. If you do end up getting it, shoot me an email and I'll share some
dwgs that may help by giving you some building blocks. I will
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