Hi Wrenches,
`
If anyone has an SE 17.3k in stock that they do not need in the immediate
future (~12 weeks) please contact me off list. We have just wrapped a 140
kW commercial job and we were shorted one inverter.
Thanks in advance,
Nick Welch
Sugar Hollow Solar
(937) 623-4026
NC Electrical Lice
Friends:
Here is how this resolved for my upcoming project: I submitted a request
to the building department to waive the requirement for a DC disconnect. I
based the justification on the need to keep a pressure pump for the fire
sprinklers and a fire alarm operational. I will supply an extern
Did they ever explain why they were requiring it on a nominal 48 volt
system? NEC 480.7(B) (from memory, I think that is the right article) says
it is for nominal voltage of 60 volts or higher. IE your 48 volt system is
exempt.
Jay pointed this out on February 3rd.
-James Jefferson Jarvis
APRS W
480.7 is Disconnect Methods, and addresses different scenarios and voltages
(A) is for batteries "with a voltage over 60 volts dc" requiring a
disconnect accessible to and within sight of the battery
(B) is in regards to 1- and 2-family dwellings, and doesn't specify a
voltage, just that an externa
HI All,
I was just contacted by someone who has a 6 yr old absolyte GP 100G33 battery
that has lost a lot of capacity.
The manual only lists a horizontal install, but this was installed on its side
which I”m guessing was due to space issues.
I am thinking that isn’t good for it, but hopefull
Hey Jay,
This is this is only anecdotal but I have two UPS's with sealed batteries.
One sits where the battery is up right. The other one sits on its side and
the battery is horizontal. The longevity of the battery in the one oriented
upright is about double the other one.
Todd
On Februar
Flat is the preferred orientation and they say that if installed with the cells
vertical it would lose some small percentage of capacity. They never said
anything about reduced life that I remember. It is very easy to have short life
on these if not fully charged very often. The will sulphate ve
They do make a "single cell module" version that is upright, in a steel
case, with the terminals on top; its top is a different color and
dimensions than the front of the rack-mounted ones in their literature.
Brian Mehalic
NABCEP Certified Solar PV Installation Professional™ R031508-59
National E
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