[RE-wrenches] Energy Storage and Working Spaces for Other Equipment

[Jason Szumlanski]

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 <jerrysgarage01 at gmail.com> 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 <
> jason at floridasolardesigngroup.com> 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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