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June 13, 2004

                               ET NEWS                                
======================================================================
             NEWS AND INFORMATION FOR THE ENGINEERING TEAM           
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Issue No. 155   http://etnews.org   mailto:mike@etnews.org   6-13-2004
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Contents
--------
- News
- ET News Journal
- Job Opportunities
- Fire Alarm Class Schedule
- Comments & Acknowledgements

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NEWS 
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ICC allows electronic monitors in lieu of physical inspections ROCKLAND, Mass.
... MIJA announced that the International Code Council has amended its
International Fire Code to allow the use of electronic monitoring devices ...
to supplement 30-day interval inspections. ...
http://www.securitysystemsnews.com/enews/2004.06.10/story3.htm

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BUILDING Code Council defers barbecue, Christmas tree bans Seattle Post
Intelligencer - Seattle,WA,USA
... lack sprinklers. The rules were part of a new International Building Code
that was being adopted by Washington state. The state ...
http://seattlepi.nwsource.com/local/aplocal_story.asp?category=6420&slug=WA%20Barbecue%20Ban

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TENANTS KO blaze in apartment building
Taunton Gazette - Taunton,MA,USA
When the buildings fire alarm went off at 7:30 am, second-floor resident Brian
Clegg and third-floor resident Mark St. Peter ...
http://www.tauntongazette.com/site/news.cfm?newsid=11938715&BRD=1711&PAG=461&dept_id=24232&rfi=6

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I'll see you in Happyrock this week.

Have fun!

Mike


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ET NEWS JOURNAL 
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FIRE ALARM ZONES
----------------

How should a fire alarm system be zoned? Should waterflow switches be separate
of smoke detectors, which should be separate of manual pull stations? The answer
is - it depends. It depends upon the requirements of your AHJ; plans examiner,
inspector, fire dept., etc. There is nothing within NFPA 72 that prohibits
installing smoke detectors on the same zone with waterflow switches and manual
pull stations so long as the zone is limited to one building and one floor.
Beyond that, NFPA 72 annex material *suggests* limiting a zone to no more than
22,500 ft^2 and no more than 300 linear feet.

Here's what NFPA 72-2002 has to say about zoning:

4.4.6.1 Visible Zone Alarm Indication. If required, the location of an operated
initiating device shall be visibly indicated by building, floor, fire zone, or
other approved subdivision by annunciation, printout, or other approved means.
The visible indication shall not be canceled by the operation of an audible
alarm silencing means.

THE OPERATIVE WORDS HERE ARE "IF REQUIRED, ..." THIS LEAVES THE FINAL DECISION
UP TO YOUR AHJ.

4.4.6.1.1*  All required annunciation means shall be readily accessible to
responding personnel and shall be located as required by the authority having
jurisdiction to facilitate an efficient response to the fire situation.

A.4.4.6.1.1  The primary purpose of fire alarm system annunciation is to enable
responding personnel to identify the location of a fire quickly and accurately
and to indicate the status of emergency equipment or fire safety functions that
might affect the safety of occupants in a fire situation.

4.4.6.1.2* Zone of Origin. Fire alarm systems serving two or more zones shall
identify the zone of origin of the alarm initiation by annunciation or coded
signal.

A.4.4.6.1.2  Fire alarm system annunciation should, as a minimum, be
sufficiently specific to identify the origin of a fire alarm signal in
accordance with the following:
  (1) If a floor exceeds 2093 m^2 (22,500 ft^2) in area, the floor should be
  subdivided into detection zones of 2093 m^2 (22,500 ft^2) or less, consistent
  with the existing smoke and fire barriers on the floor.
  (2) If a floor exceeds 2093 m^2 (22,500 ft^2) in area and is undivided by
  smoke or fire barriers, detection zoning should be determined on a
  case-by-case basis in consultation with the authority having jurisdiction.
  (3) Waterflow switches on sprinkler systems that serve multiple floors, areas
  exceeding 2093 m^2 (22,500 ft^2), or areas inconsistent with the established
  detection system zoning should be annunciated individually.
  (4) In-duct smoke detectors on air-handling systems that serve multiple
  floors, areas exceeding 2093 m^2 (22,500 ft^2), or areas inconsistent with the
  established detection system zoning should be annunciated individually.
  (5) If a floor area exceeds 2093 m^2 (22,500 ft^2), additional zoning should
  be provided. The length of any zone should not exceed 91 m (300 ft) in any
  direction. If the building is provided with automatic sprinklers throughout,
  the area of the alarm zone should be permitted to coincide with the allowable
  area of the sprinkler zone.

THE ANNEX MATERIAL IS EXPLANATORY USING THE WORD SHOULD VERSUS SHALL THEREFORE
NOT NECESSARILY REQUIRED. THIS ANNEX MATERIAL IS WHAT YOUR AHJ WILL REFER TO
WHEN DETERMINING ZONING REQUIREMENTS.

4.4.6.1.3 Display. Visual annunciators shall be capable of displaying all zones
in alarm. If all zones in alarm are not displayed simultaneously, there shall be
visual indication that other zones are in alarm.

4.4.6.2 Fire Command Center. Alarm annunciation at the fire command center shall
be by means of audible and visible indicators.

4.4.6.3 Zone. For the purpose of alarm annunciation, each floor of the building
shall be considered as a separate zone. If a floor is subdivided by fire or
smoke barriers and the fire plan for the protected premises allows relocation of
occupants from the zone of origin to another zone on the same floor, each zone
on the floor shall be annunciated separately for purposes of alarm location.

4.4.6.4 Multiple Buildings. If the system serves more than one building, each
building shall be indicated separately.

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JOB OPPORTUNITIES 
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Place your "job opportunity" or "seeking employment" ad here. 
mailto:jobs@etnews.org

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FIRE ALARM CLASS SCHEDULE 
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------------------
June 14-16, 2004 Phoenix, AZ
------------------
Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_Phoenix_June2004.pdf

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June 22-24, 2004 Oakland, CA
------------------
Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_Oakland_Jun2004.pdf

------------------
July 6-8, 2004 Seattle, WA
------------------
Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_Seattle_Jul2004.pdf

------------------
July 13-15, 2004 Chicago, IL
------------------
Fire Alarm System Testing and Inspection Seminar
Advanced Fire Alarm Seminar (NICET III/IV) 
http://www.afaa.org/afaa/PDF/TI_AdvFA_Chicago_Jul2004.pdf

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July 20-22, 2004 Salt Lake City, UT
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Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_SaltLakeCity_Jul2004.pdf

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August 17-19, 2004 Cincinnati, OH
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Basic Fire Alarm Seminar
Fire Alarm System Testing & Inspections Seminar
Fire Alarm Plan Review Seminar
http://www.afaa.org/afaa/PDF/BasFA_TI_PR_Cincinnati_Aug2004.pdf

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August 24-26, 2004 Indianapolis, IN
------------------
Fire Alarm Plan Review Seminar
Intermediate Fire Alarm Seminar (NICET I & II)
More information is forthcoming. 

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

ET News is written nearly every week and almost always sent on Sunday.

Doug Hockinson http://phpvs.com built the PHP/MySQL ET News website.

Purchase NICET Element Review Handbook here http://tinyurl.com/28ldd

Purchase NFPA, ICC, and more online http://www.etnews.org/index.php?s=461

Purchase new/used codes & standards on eBay http://tinyurl.com/36zzk

----------------------------------------------------------------------
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.