Are there ever times when there are people sitting in the grandstands above
the trailer full of "explosives"? I'd want a little more than a dry system
outdoors (not timely on windy days) between my seat and explosives,
especially if some cig butts are dropping in the ordinary combustibles area
around the trailer (dixie cups from last week, napkins, usual stuff)

Other than having a place of assembly directly above explosive storage, no I
don't see anything wrong. 

Seriously, the above is a little scary. I don't know why a flexhead wouldn't
feed the sprinkler without bad things happening. I can tell you that a 5,000
SF retail side and a 5,000 SF storage side of retail fireworks is nothing
more than OH2- until the fireworks catch fire, and ESFR's wouldn't work,
you'd have wished you had a suprotex or primac system with 50 millisecond
suppression. The sprinklers in the retail/storage I described had a lot more
fire load, but the sprinklers are only intended to stop a fire before it
sets the fireworks on fire. Not economically feasible to use infrared
detection when your competitors are selling out of tents.

glc

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of douglas hicks
Sent: Monday, July 14, 2008 6:04 PM
To: sprinkler board
Subject: Explosives

I have a customer who stores a quantity of less than 2 # of Class 1.4G
explosives.  These explosives are comparable to fireworks.  The 1.4G is
stored in a metal cabinet, not rated. The storage unit is 8 foot wide x 8
foot high x 12 foot long.  The construction is wood frame, plywood floor,
wood panel interior, and metal outside.  If this sounds like a job trailer,
your are right.  The trailer is parked under a grandstand.  the steel/wood
grandstand is protected with a dry system, under the grandstands.  Other
contents are ordinary combustibles, wood, paper, cardboard.  

Upon occasion, the trailer is moved to other locations for shows.  Then the
trailer is parked under the grandstand.  unless the trailer is put in the
exact same spot, connection to the sprinkler system will be difficult.  Can
the flex head work for this application?  As the 1.4G is in a cabinet, I
would feel better with a sprinkler head in the cabinet, with a head or heads
protecting the trailer.

Any suggestions?

Douglas Hicks
General Fire Equipment Co of Eastern Oregon, Inc

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