This isn't just a Li+ issue, this has been a problem going all the way
back to the 90s. Basically many AHJs don't catch it, but its still a
violation. We either keep the battery cabinet shallow, or we put the
battery cabinet to the side. Just use some common sense, if you are
having to lean awkwardly over or around something to get to the
breakers, its probably a violation.
Ray Walters
Remote Solar
303 505-8760
On 1/31/21 5:55 PM, Jason Szumlanski wrote:
I'm reading that the working space must be down to the floor/grade
with the exception of other equipment extending up to 6 inches deeper
than the enclosure for which the working space applies.
For example, technically you can't put a 32 inch deep base cabinet and
countertop below a load center. I see it all the time, but inspectors
around here in some jurisdictions will not allow it.
I seriously doubt I would be flagged for a 24 inch deep battery
enclosure below a 12 inch deep inverter with integrated disconnects,
but by the book it seems like a violation.
Jason
On Sun, Jan 31, 2021, 5:38 PM Jerry Shafer <[email protected]
<mailto:[email protected]>> wrote:
l dont know that this NEC code applies in the way you are reading
or understanding it, I do see where foreign components are
restricted with in the space. We have systems with two or three
outback radians above blueplanet batteries and have not seen an
issue. The BPE's are in an enclosed cabinet fire approved and
protected from shock, putting batteries further away will create
space issues. Since all of these components are required for the
"system" to operate they are necessary.
Jerry
On Sun, Jan 31, 2021, 12:28 PM Jason Szumlanski
<[email protected]
<mailto:[email protected]>> wrote:
I'm seeing a lot of pictures of LiPO battery systems and
people are mounting equipment above them like load centers,
inverters with disconnects, and other serviceable enclosures.
Some of these battery systems are 24 inches deep or more. This
seems to violate NEC 110.26 requirements for the other
serviceable equipment, but the pictures are proudly displayed
as models of success. Even slender Tesla Powerwalls stick out
significantly when stacked 2 or 3 deep and would be more than
6 inches deeper than a standard load center. Sure, the battery
cabinets make great places to rest tools while working, but
does anyone else see this as problematic?
Jason Szumlanski
Florida Solar Design Group
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