I don't think that would be appropriate. That's why lead acid batteries
are covered in their own section in 480. I'm not aware of any references
in 480 to also adhere to 500. Battery acid is corrosive, H2S can be
poisonous, but its very rare to build up gases to a flammable
concentration outside of the battery.
Anyone that is concerned should just use LFP chemistry batteries.
Ray Walters
Remote Solar
303 505-8760
On 10/22/20 11:36 AM, Mark Frye wrote:
Perhaps we should be applying Article 500 to the installation of
batteries as well.
On 10/22/2020 10:02 AM, Kent Osterberg wrote:
Jay,
I suspect it is because FMC is not vapor tight and could be an
unintentional path for hydrogen gas, or could allow acid vapors to
condense on the enclosed wiring. LFMC (aka liquid tight) is allowed
in battery rooms.
Kent Osterberg
Blue Mountain Solar
On 10/22/2020 9:07 AM, jay wrote:
HI All,
348.12 says that FMC cannot be used in battery rooms.
Would anyone like to chime in as to why that would be?
And what is the definition of a battery room:
Is a battery in an enclosure ( box) a battery room, or is the room
that the battery/box is in the battery room?
Thx
jay
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