Did a rehab on an FM ESFR job where the battery charging area was
beneath a large duct. Their recommendation was to put ESFR sprinklers below it.
At 10:39 AM 9/9/2010, you wrote:
Charging, if done with "approved" equipment is a pretty
straightforward use. The equipment is required by electrical code
to be well-grounded and otherwise well-protected. If there was a
surge or overload it should trip whatever circuit interrupt is in
place. I've seen several of these in past projects and the
batteries are placed individually on or next to the chargers, and
spares usually no more than one or two high. It may be a Class A,
but likely not high-piled or of concern regarding density of discharge.
Steve Leyton
Protection Design & Consulting
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Brian Harris
Sent: Thursday, September 09, 2010 6:39 AM
To: [email protected]
Subject: RE: Commodity Question
Craig-
I would definitely say they are truck size (or larger) that's why I was
leaning towards Group A. It just seems like overkill, I can't imagine there
would be more than 5 or 10 in there at the most. Would you think the
"charging" would create any additional concerns? I.e.: Gases...
Brian Harris
FDFP Inc.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
[email protected]
Sent: Thursday, September 09, 2010 9:27 AM
To: [email protected]
Subject: RE: Commodity Question
Are the batteries standard car size or larger truck size?
Look at NFPA 13, Table A.5.6.3, filled automobile batteries believe it or
not are considered a Class I commodity while truck batteries are considered
Group A plastics.
How many batteries are in the location, what size would you consider them to
be, auto or truck?
Consider that in an automotive store that car batteries are on racks in
fairly appreciable quantities and nothing extra ordinary is done to the
overhead sprinkler systems in those areas.
Apparently someone with more letters after their name than you and I has
determined that a water filled CAR battery is not a huge hazard.
Craig L. Prahl, CET
Fire Protection Specialist
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[email protected]
http://www.ch2m.com
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Brian Harris
Sent: Thursday, September 09, 2010 9:08 AM
To: [email protected]
Subject: RE: Commodity Question
Craig-
I'm leaning towards Group A Plastics because of the batteries but don't want
to overkill it either.
Brian Harris
FDFP Inc.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
[email protected]
Sent: Thursday, September 09, 2010 9:01 AM
To: [email protected]
Subject: RE: Commodity Question
Brian,
I don't want this to come off as a smart retort, but if you look in NFPA 13,
what is your first inclination as far as a protection scheme?
Craig L. Prahl, CET
Fire Protection Specialist
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[email protected]
http://www.ch2m.com
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Brian Harris
Sent: Thursday, September 09, 2010 8:33 AM
To: [email protected]
Subject: Commodity Question
I have an ESFR Warehouse that has a 1600 sq.ft. room that is used for
charging the forklift batteries, what should this room be designed to?
Thanks,
Brian Harris
First Defense Fire Protection
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com
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