As Steve has always reminded me, the "End User" or customer for a Standpipe
is the Fire Department. This is one of the few times when the AHJ is also
the user. ALWAYS! Ask them what they want, and why. It could be very
educational, and save a lot of headache and lost revenue.
We had a project today with Split Level access to the stairwell. Went to the
AHJ discussed our concerns on standpipe location, Mid vs. Floor landings and
which were both, as well as roof access. Guess what? They spotted the
standpipe locations on our drawing and we're off to other money making
projects. We 'll put them where they asked, and move on. (It makes life so
simple when you can just give the AHJ some voice, and give them what they
want up front.)
Thom McMahon
Firetech, Inc.
2560 Copper Ridge Dr
Steamboat Springs, CO 80488-2136
Tel: 970-879-7952
Fax: 970-879-7926
----- Original Message -----
From: "Steve Leyton" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, January 30, 2007 2:02 PM
Subject: RE: NFPA #14 and pressures
I think that the sections I referenced are quite clear:
"For Class III systems installed without hose, the water supply
requirements shall be as specified for Class I systems."
That would be ALL of the water supply design criteria, including both
maximum and minimum pressures.
Steve Leyton
Protection Design & Consulting
The foregoing is the opinion of the writer alone, and does not necessarily
represent the intent of the NFPA 14 Technical Committee, nor constitute a
formal or informal interpretation of the standard.
-----Original Message-----
From: Timothy W Goins [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 30, 2007 12:49 PM
To: [email protected]
Subject: RE: NFPA #14 and pressures
Steve,
In my opinion the 100 PSI reducer is still required for that reducer and
it's proposed hose, if it is ever used. If I'm wrong please let me know
and I'll paste it in my 14.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve
Leyton
Sent: Tuesday, January 30, 2007 2:36 PM
To: [email protected]
Subject: RE: NFPA #14 and pressures
Timothy:
Check out 7.3.4.1.2 (2007 ed.) and 7.3.4.1 (2003 ed.)
Steve
-----Original Message-----
From: Timothy W Goins [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 30, 2007 12:20 PM
To: [email protected]
Subject: RE: NFPA #14 and pressures
The definition os a Clas III requires 1½" Hose statoins (hose included)
and 2½" hose connections;
3.3.27.3 Class III System. A Class III standpipe system provides 38-mm
(11⁄2-in.) hose stations to supply water for use by building occupants and
65-mm (21⁄2-in.) hose connections to supply a larger volume of water for
use by fire departments and those trained in handling heavy fire streams.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Todd
Williams - work
Sent: Tuesday, January 30, 2007 2:12 PM
To: [email protected]
Subject: RE: NFPA #14 and pressures
And even if they find one, would you trust an untrained person on the end
of a hose with 100 psi discharge?
At 03:02 PM 1/30/2007, you wrote:
One thing that does not make sense....where are these untrained people
going to get 1 1/2" hose?
Paul J. Pinigis, P.E.
Chief Life Safety Engineer
Must meet both criteria. The 1½" hose station is available for
untrained persons thus the pressure limit.
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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