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January 30, 2005

                           []< ET NEWS                                 
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             NEWS AND INFORMATION FOR THE ENGINEERING TEAM
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Issue No. 188    ISSN 1554-074X     http://www.etnews.org    1-30-2005
====================================================================== 

Contents
--------
- News
- ET News Journal
- Job Opportunities
- Fire Alarm Class Schedule
- Comments & Acknowledgements

======================================================================
NEWS 
======================================================================

NFPA Technical Committee on Residential Occupancies
JAN 5/2005 — The NFPA Technical Committee on Residential Occupancies
has completed its work in preparing the next editions of NFPA 101 and
NFPA 5000.  In both documents, the committee decided to require fire
sprinkler systems in all new one- and two-family dwellings.  The
results of the committee ballot were officially released January 4,
2005 by NFPA. A vote on this will be held at the NFPA Annual Meeting
in Las Vegas in May. Only people who have been members of the NFPA
since December of 2004 will be allowed to vote at this meeting.
http://www.sprinklernet.org/

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I'll see you in Happyrock this week. 

Have fun!

Mike
mailto:mike@etnews.org

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ET NEWS JOURNAL 
======================================================================

THE MOORE-WILSON SIGNALING REPORT
---------------------------------

Question #1192
--------------

Looking at Table 5.6.5.5.1 in NFPA 72-2002, it appears that above 30
feet heat detectors require no reduction in spacing. I made the
observation to our local AHJ, and he told me that over 30 feet heat
detectors might not reliably detect a fire. If that is so, how do
automatic sprinklers operate properly when the ceiling height exceeds
30 feet?

Answer
------

The automatic sprinklers installed in a building with a ceiling height
above 30 feet will respond when the temperature at the ceiling reaches
the operating temperature of the sprinkler head and sustains that
temperature long enough to fuse the head. If the temperature at the
ceiling has not reached a value that will fuse the sprinkler head, it
likely poses no threat to the structural elements that support that
ceiling. Could a fire occur in a high ceiling building that would
totally burn out the contents, and yet not fuse the sprinkler heads at
the ceiling? Yes, if a relatively low energy fire burned for a long
enough period of time to consume the contents without creating a plume
of hot gases that would rise to the ceiling and fuse the sprinkler
heads. The likelihood of such an event happening would be very rare.
In such a case, however, while the fire would destroy the contents,
the building would remain in tact. For, once again, if the temperature
at the ceiling did not reach a level high enough to fuse the sprinkler
heads, it poses no threat to the structural members supporting the
ceiling. In those buildings where the nature of the contents requires
faster sprinkler operation, such as certain warehouse occupancies, a
fire protection engineer can specify the use of quick response
sprinkler heads. These heads have a significantly lower Response Time
Index and will operate much faster during a fire than ordinary heads
with the same temperature rating. Please also remember that Table
5.6.5.5.1 for heat detectors in NFPA 72-2002, National Fire Alarm
Code, originated based on research conducted by the Fire Detection
Institute in the mid-1970's. The Institute sponsored the tests
conducted at FM Global's Fire Research Center at West Gloucester, RI.
Originally, the Institute conducted tests at the FM Test Center's 30
foot Test Site. Before the Institute could begin tests at the 60 foot
test site, the money donated by various organizations and individuals
ran out. Since the collected data only contained tests with ceiling
heights no greater than 30 feet, the Table did not extrapolate the
data beyond that height.

Wayne Moore and Dean Wilson are senior engineers at Hughes Associates,
Inc., a leading international provider of engineering and research
services to the fire protection field, including fire hazard and risk
assessment services, fire protection systems design and testing, code
consulting, loss control, and forensic engineering services. Its
clientele includes architects, building owners and manufacturing
companies in the private sector, as well as the Department of Defense
and other governmental bodies. For more information on Hughes
Associates and its services, call (410) 737-8677.
Web site address: www.haifire.com. 

Subscribe to The Moore-Wilson Signaling Report:
http://tinyurl.com/5y23n.

======================================================================
JOB OPPORTUNITIES 
======================================================================

JOB OPPORTUNITY and SEEKING EMPLOYMENT announcements are provided as a
service. ET News provides a venue for direct contact between job
seekers and employers. ET News is not a placement agency and does not
endorse either job seekers or employers.

Send your announcement to: mailto:jobs@etnews.org or post your own ad:
http://www.etnews.org/index.php?s=257

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FIRE ALARM CLASS SCHEDULE 
======================================================================

Contact me to find out how your group can sponsor an AFAA seminar. 
mailto:mikebaker@afaa.org

------------------
February 14-17, 2005 Oklahoma City, OK - Sponsored by OK AFAA
------------------
Understanding IBC Fire Alarm Requirements  
Fire Alarm Plan Review Seminar  
Fire Alarm System Testing & Inspections Seminar
http://www.afaa.org/afaa/PDF/IBC_TI_PR_OKC_2-05.pdf

------------------
February 18, 2005 Edmond, OK - Presented by OK AFAA
------------------
Basic Fire Alarm Seminar
http://www.afaa.org/afaa/PDF/BasFA_Edmond_OK_2-05.pdf

------------------
February 22-24, 2005 Honolulu, HI - Co-sponsored by SFPE-Hawaii
------------------
Fire Alarm System Testing and Inspection Seminar 
Advanced Fire Alarm Seminar (NICET III & IV) 
http://www.afaa.org/afaa/PDF/TI_AdvFA_Honolulu_Feb2005.pdf

------------------
February 28-March 2, 2005 Kent, WA - Co-sponsored by Kent Fire Dept.
------------------
Fire Alarm Plan Review Seminar
Understanding IBC Fire Alarm Requirements 
http://www.afaa.org/afaa/PDF/PR_IBC_Seattle_Mar2005.pdf

------------------
March 22-24, 2005 Chicago, IL
------------------
Fire Alarm System Testing and Inspection Seminar 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_Chicago_Mar2005.pdf

------------------
April 5-7, 2005 Boston, MA
------------------
Fire Alarm Plan Review Seminar
Intermediate Fire Alarm Seminar (NICET I & II) 
More info to follow

------------------
April 13-16, 2005 - Phoenix, AZ
------------------
Automatic Fire Alarm Association Annual Meeting 
http://www.afaa.org

------------------
April 19-21, 2005 Brooks, OR - Sponsored by Oregon AFAA
------------------
Fire Alarm Plan Review Seminar
Understanding IBC Fire Alarm Requirements 
More info to follow

------------------
April 26, 2005 Great Falls, MT - Sponsored by Montana State University
------------------
Advanced Fire Alarm Seminar
More info to follow

======================================================================
COMMENTS AND ACKNOWLEDGEMENTS 
======================================================================

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Some information may be found within this email message that is
reprinted with permission from one or more of the following; NFPA 70
National Electrical Code(r), NFPA 72(r) National Fire Alarm Code(r),
NFPA 101(r) Life Safety Code(r), Copyright(c) NFPA, Quincy, MA 02269.
This reprinted material is not the complete and official position of
the NFPA on the referenced subject, which is represented only by the
standard in its entirety. 
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Some information may be found within this web site that is reprinted with permission from one or more of the following: NFPA 70 National Electrical Code®,NFPA 72® National Fire Alarm Code®, & NFPA 101® Life Safety Code®, Copyright© NFPA, Quincy, MA 02269.

This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety.