Yes Russell, it is of great interest to me, thank you. On Friday lunch break
I found NZS4541:2007. It is not free. I also refreshed my memory on RTI.
Since it is based on temperature AND velocity of the heat, given RTI=36,
without knowing the rated temp, one does not know if the length unit is
Of Brad
Casterline
Sent: Saturday, 9 June 2012 12:27 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
Thanks Russell! I thought I had answered my own question using 'pure
reasoning' alone :), especially since the original question dealt with
needing to differentiate RTI, and 30 must be a UL
: RE: RTI
In our NZ Standard NZS541 a sprinkler with RTI between 50 and 80 is
designated a Special Response Sprinkler. These usually have a 4mm bulb.
Std Response has a 5mm or larger bulb and the Fast Response has a 3mm
bulb.
Russell Gregory
Ph 03 338 4853
e-mail rcgreg...@snap.net.nz
-Original
never mind (coffee worked), it's called 'nobody makes them because they
would not be UL Listed', and it points out the amazing (to me) tolerances
sprinklers are manufactured to.
-Original Message-
From: bcasterl...@fsc-inc.com [mailto:bcasterl...@fsc-inc.com]
Sent: Thursday, June 07,
: Thursday, June 07, 2012 7:37 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
never mind (coffee worked), it's called 'nobody makes them because they would
not be UL Listed', and it points out the amazing (to me) tolerances sprinklers
are manufactured to.
-Original Message-
From
N. Brooks, P.E.
Brooks Fire Protection Engineering Inc.
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Mike
Hairfield
Sent: Wednesday, June 06, 2012 3:36 PM
To: AFSA SprinklerFORUM
Subject: RE: RTI
You
@firesprinkler.org
Subject: RE: RTI Cloud Deluge
Yes we have a rulebook instead of an engineering approach (thank goodness), and
yes we have been fumbling around for many years about this cloud thing, but in
the name of common sense (which I hope we still have a little of) this design
approach must
Of George Church
Sent: Thursday, June 07, 2012 5:27 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
The amount of significant digits we work to in various aspects is quite varied.
Some folks believe calc programs down to the .001 level when it all comes down
to a gauge bouncing around
In our NZ Standard NZS541 a sprinkler with RTI between 50 and 80 is
designated a Special Response Sprinkler. These usually have a 4mm bulb.
Std Response has a 5mm or larger bulb and the Fast Response has a 3mm
bulb.
Russell Gregory
Ph 03 338 4853
e-mail rcgreg...@snap.net.nz
-Original
Hello
Well the alarm guys that put the heat detector in the elevator shaft need to
consider the RTI of the sprinkler head in comparison to the RTI of the Heat
Detector they put within 24 of the sprinkler head also. Going to be a Pain
when the the requirement that anything within 48 of the
Call Tyco.
Craig L. Prahl, CET
Fire Protection
CH2MHILL
Lockwood Greene
1500 International Drive
Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
CH2MHILL Extension 74102
craig.pr...@ch2m.com
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org
Thanks,
They told me it was 36.
Mike
From: craig.pr...@ch2m.com
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
Date: Wed, 6 Jun 2012 17:21:17 +
Call Tyco.
Craig L. Prahl, CET
Fire Protection
CH2MHILL
Lockwood Greene
1500 International Drive
Spartanburg, SC
To: AFSA SprinklerFORUM
Subject: RE: RTI
Thanks,
They told me it was 36.
Mike
From: craig.pr...@ch2m.com
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
Date: Wed, 6 Jun 2012 17:21:17 +
Call Tyco.
Craig L. Prahl, CET
Fire Protection
CH2MHILL
Lockwood Greene
1500
Mike,
I had an AHJ ask that once. Thing was he was clueless about sprinklers and
what we were doing, but he had apparently done some reading and came across
the RTI. He thought he had found the nail for our coffin. Tried to hold up
the project because of it. This in spite of FM approval. Once
, June 06, 2012 12:26 PM
To: AFSA SprinklerFORUM
Subject: RE: RTI
Thanks,
They told me it was 36.
Mike
From: craig.pr...@ch2m.com
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
Date: Wed, 6 Jun 2012 17:21:17 +
Call Tyco.
Craig L. Prahl, CET
Fire Protection
CH2MHILL
There are QR Sprinklers in the same room that has a deluge system with open
heads in it, they want to make
sure that the detectors do not trip the deluge system first.
From: ccah...@burnsmcd.com
To: sprinklerforum@firesprinkler.org
Date: Wed, 6 Jun 2012 12:31:18 -0500
Subject: RE: RTI
SprinklerFORUM
Subject: RE: RTI
There are QR Sprinklers in the same room that has a deluge system with open
heads in it, they want to make
sure that the detectors do not trip the deluge system first.
From: ccah...@burnsmcd.com
To: sprinklerforum@firesprinkler.org
Date: Wed, 6 Jun 2012
big DA came up with
this idea.
It's a tiered classroom with a sloping floor, I suggested they install some
life preservers for the students
so they won't drown when the system trips.
Mike
From: craig.pr...@ch2m.com
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI
Date: Wed, 6
Subject: RE: RTI
You won't believe this!
Armstrong ceiling clouds that are arched, architect doesn't want to penetrate
the clouds like the Armstrong
data sheet shows so we have QR sprinklers above the clouds and a deluge system
of sidewall sprinklers
feed from the soffits throwing water under
...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Mike Hairfield
Sent: Wednesday, June 06, 2012 2:36 PM
To: AFSA SprinklerFORUM
Subject: RE: RTI
You won't believe this!
Armstrong ceiling clouds that are arched, architect doesn't want to penetrate
the clouds like the Armstrong
:36 PM
To: AFSA SprinklerFORUM
Subject: RE: RTI
You won't believe this!
Armstrong ceiling clouds that are arched, architect doesn't want to penetrate
the clouds like the Armstrong data sheet shows so we have QR sprinklers above
the clouds and a deluge system of sidewall sprinklers feed from
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org [mailto:
sprinklerforum-boun...@firesprinkler.org] On Behalf Of Mike Hairfield
Sent: Wednesday, June 06, 2012 3:36 PM
To: AFSA SprinklerFORUM
Subject: RE: RTI
You won't believe this!
Armstrong ceiling clouds
Try contacting Peter Larrimer (FPE for the VA verses just one of
their hospitals). He pops up on occasion on the Forum.
Roland
On May 14, 2007, at 9:06 AM, Jay Stough wrote:
We have a customer, a VA Hospital, that is trying to justify
changing from
Standard response to quick response
NIST ran a number of full scale fire tests in hospital patient rooms
looking at different sprinkler heads, locations, activation times, etc.
The report is located here:
http://fire.nist.gov/bfrlpubs/fire79/PDF/f79004.pdf
Rich Pehrson
Futrell Fire
-Original Message-
From: [EMAIL
The actual sprinkler operation time is a function of the fire size
and growth because the heat transfer to the element is related to the
temperature and velocity of gasses passing the link/bulb, plus other
factors. I use a program to calculate the difference in time, there
are several
, and ESFR).
Regards,
Salvatore Izzo, P.E. SFPE
Manager - Reliable Technical Services
From: [EMAIL PROTECTED] on behalf of Rich Pehrson
Sent: Mon 5/14/2007 12:30
To: sprinklerforum@firesprinkler.org
Subject: RE: RTI Times
NIST ran a number of full scale fire
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