Archives 2008
Issue No. 322
Issue No. 323
Issue No. 324
Issue No. 325
Issue No. 326
Issue No. 327
Issue No. 328
Issue No. 329
Issue No. 330
Issue No. 331
Issue No. 332
Issue No. 333
Issue No. 334
Issue No. 335
Issue No. 336
Issue No. 337
Issue No. 338
Issue No. 339
Issue No. 340
Issue No. 341
Issue No. 342
Issue No. 343
Issue No. 344
Issue No. 345
Issue No. 346
Issue No. 347
Issue No. 348
Issue No. 349
Issue No. 350
Issue No. 351
Issue No. 352
Issue No. 353
Issue No. 354
Issue No. 355
Issue No. 356
Issue No. 357
Issue No. 358
Issue No. 359
Issue No. 360
Issue No. 361
Issue No. 362
Issue No. 363
Issue No. 364
Issue No. 365
Issue No. 366
Issue No. 367
Issue No. 368
Issue No. 369
Issue No. 370

  Log In

 

July 27, 2008

                             []< ET NEWS                               
====================================================================== 
    NEWS AND INFORMATION FOR THE FIRE PROTECTION ENGINEERING TEAM      
---------------------------------------------------------------------- 
 Issue No. 350  ISSN 1554-074X      http://www.etnews.org   7-27-2008  
====================================================================== 
 
Contents 
-------- 
- News 
- Journal 
- Employment 
- Seminar Schedule 
- Comments & Acknowledgements 
 
====================================================================== 
NEWS 
====================================================================== 
 
AFAA Intermediate Fire Alarm seminar course-book approved by NICET. 
Automatic Fire Alarm Association, Jasper, GA 
Follow the link to view a list of reference material permitted to be 
used during a NICET examination. 
http://www.nicet.org/candidates/allowable_reference_material.pdf 
 
---------------------------------------------------------------------- 
 
Fire alarm knocks out cable service to 100000
WANE - Fort Wayne,IN,USA
A Comcast employee told NewsChannel 15 that a fire alarm's to blame 
for knocking out cable. The worker says sometime after 7:30, the fire 
alarm went off ... 
http://www.wane.com/Global/story.asp?S=8733385&nav=0RYb 
 
---------------------------------------------------------------------- 
 
Fire Protection Engineers in High Demand
Fire Chief - Chicago,IL,USA
"Fire protection engineers are in high demand and short supply," said 
Chris Jelenewicz a fire protection engineer with the Society of Fire 
Protection ... 
http://firechief.com/technology/engineeres_demand_0724/ 
 
---------------------------------------------------------------------- 
 
This week I'll see you in Detroit. 
http://www.afaa.org/pdf/BasFA_PR_IBC_Detroit_Jul2008.pdf 
 
Have fun! 
 
Mike 
mailto:mike@etnews.org 
 
DL-79,005 AS-12,514 HA-2,602 CO-1,000 F9-650 UA-500 
 
====================================================================== 
                            ADVERTISEMENT                              
====================================================================== 
 CENTRAL STATION MONITORING                   UL(r) listed monitoring  
 All major formats plus AES, SafeCom, ScanAlert, & Video Verification  
  *** 2008 New Dealer Special - 1 YEAR FREE ADDITIONAL SERVICES ***    
 Free Web Access                         mailto://begeord@cuaccess.net 
 503-630-8961 voice || 503-630-8944 fax  http://www.csmul.com          
====================================================================== 
ET NEWS JOURNAL                                                        
====================================================================== 
 
THE MOORE-WILSON SIGNALING REPORT 
--------------------------------- 

Question #1337
-------------- 
What is the technical justification for 15 dBA over ambient? Where did 
it come from?
 
Answer 
------ 
There have been numerous audibility research studies that indicated 
the level above ambient that will gain our attention is 15 dBA. For a 
very good presentation on the audibility characteristics of alarm 
systems refer to the SFPE Fire Protection Engineering Handbook. The 
references to that information were the same references used by the 
Technical Committee on Notification Appliances to develop the 
requirements now given the Code. 
 
--
 
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: http://www.haifire.com. 
 
-- 
 
Additional Information 
---------------------- 
  
I found some excellent information in the SFPE Fire Protection 
Engineering Handbook written by Bob Schifiliti but I didn't find 
anything that supports the +15 dB requirement so I poked around in my 
library and here's what I found.  NFPA asked CHABA (National Academy 
of Sciences Committee on Hearing and BioAcoustics) to recommend an 
audio signal that could be adopted as a national fire alarm signal, 
which resulted in a 1975 report.  I couldn't get my hands on the 
actual report:
CHABA, "A proposed standard fire alarm signal," Fire Journal, Vol. 69, 
No. 4, 1975, pp. 24-27.

But I was able to find reference to it in a later paper by Donald 
Robinson: 
 
"CHABA (National Academy of Sciences Committee on Hearing and 
BioAcoustics) recommended nominal on and nominal off states presented 
repeatedly with the nominal "on" segment being from 0.4 to 0.6 sec and 
the nominal "off" segments being from 0.3 to 0.6 sec.  Further, CHABA 
recommended that the standard fire alarm signal be clearly audible and 
distinguishable from potential background interference.  To accomplish 
this they recommended that the signal be loud enough to produce a 
sound level that exceeds by 15 dB the prevailing equivalent sound 
level at the potential listener's ear or exceed by 5 dB any maximum 
sound level having duration greater than 30 sec. whichever is greater." 
"Sound Transmission Loss from Corridors to Rooms: Implications for 
Locating Fire Alarm Sounders" from Fire Technology, Volume 22, No. 2, 
May 1986, by Donald A. Robinson 
 
- Mike 
 
====================================================================== 
                            ADVERTISEMENT                              
====================================================================== 
LIGHT ENGINEERED DISPLAYS, INC.       UL, CSFM and MEA Listed Products 
Graphic and Directory Annunciators    Firefighter Smoke Control Panels 
AquaALERT Water Leak Detection   ARA Systems, Protective Device Covers 
       Complete catalog and specifications available on request        
800-251-2512     -       FAX 800-251-9878       -       www.ledinc.com 
====================================================================== 
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.   
 
Post your announcement at http://www.etnews.org/index.php?s=257 
 
====================================================================== 
SEMINAR SCHEDULE
====================================================================== 
 
Contact me to find out how your group can sponsor seminars. 
mailto:mikebaker@afaa.org 
  
------------------ 
July 29-31, 2008 Detroit, MI 
------------------ 
Basic Fire Alarm Seminar 
Fire Alarm Plan Review Seminar 
Understanding IBC Fire Alarm Requirements 
http://www.afaa.org/pdf/BasFA_PR_IBC_Detroit_Jul2008.pdf 
 
------------------ 
August 19-21, 2008 San Francisco, CA  
------------------ 
Understanding NFPA 101 Fire Alarm Requirements 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/pdf/101_IntFA_SanFrancisco_Aug2008.pdf 
 
------------------ 
August 26-28, 2008 San Jose, CA 
------------------ 
Understanding NFPA 101 Fire Alarm Requirements 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/pdf/101_AdvFA_SanJose_Aug2008.pdf 
 
------------------ 
September 2-4, 2008 Rolling Meadows, IL 
------------------ 
Understanding NFPA 101 Fire Alarm Requirements 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/pdf/101_IntFA_RollingMeadows_Sep2008.pdf 
 
------------------ 
September 8-10, 2008 Minneapolis, MN 
------------------ 
Basic Fire Alarm 
Understanding IBC Fire Alarm Requirements 
Understanding NFPA 101 Fire Alarm Requirements 
http://www.afaa.org/pdf/BasFA_IBC_101_Minneapolis_Sep2008.pdf 
 
------------------ 
September 16-18, 2008 Anchorage, AK 
------------------ 
Understanding IBC Fire Alarm Requirements 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/pdf/IBC_IntFA_Anchorage_Sep2008.pdf 
 
------------------ 
September 18, 2008 East Hanover, NJ 
------------------ 
Fire Alarm System Testing and Inspection 
http://www.afaa.org/pdf/TI_AFAA-NJ_Sept2008.pdf 
 
------------------ 
September 23-25, 2008 Laurel, MD 
------------------ 
More info to follow ... 
 
------------------ 
September 29 and October 1-2, 2008 Louisville, KY  
------------------ 
Basic Fire Alarm 
Fire Alarm System Testing and Inspection 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/pdf/KYAFAA_Training_September_08.pdf 
 
------------------ 
October 6-10, 2008 Portland, OR   
------------------ 
Fire Alarm System Testing and Inspection 
Intermediate Fire Alarm Seminar (NICET I & II) 
Fire Alarm Plan Review Seminar 
Understanding IBC Fire Alarm Requirements 
http://www.afaa.org/pdf/TI_IntFA_PR_IBC_Portland_Oct2008.pdf 
 
------------------ 
October 14-17, 2008 Pleasanton, CA 
------------------ 
Intermediate Fire Alarm Seminar (NICET I & II) 
Sponsored seminar (closed) 
 
------------------ 
October 28-30, 2008 Baton Rouge, LA 
------------------ 
Fire Alarm System Testing and Inspection 
Intermediate Fire Alarm Seminar (NICET I & II) 
http://www.afaa.org/pdf/TI_IntFA_BatonRouge_Oct2008.pdf 
 
====================================================================== 
COMMENTS AND ACKNOWLEDGEMENTS 
====================================================================== 
 
ET News is written nearly every week and almost always sent on Sunday. 
 
Doug Hockinson built ETNews.org using PHP/MySQL-> http://www.phpvs.com 
 
Purchase new & used codes & standards on line http://tinyurl.com/36zzk 
 
---------------------------------------------------------------------- 
Some information may be found in this message and etnews.org 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.                                              
====================================================================== 
+--------------------------------------------------------------------+ 
|                   Michael Baker & Associates Inc                   | 
| (800) 734-3902 || PO Box 737, Gladstone OR 97027 || mba@etnews.org | 
+--------------------------------------------------------------------+ 
ET News(SM) Copyright(c) 2008 by Michael B. Baker. All rights reserved 
1,608 subscribers
Send a link to a friend        
 

 

Home - Clients - Book Store - NICET Level I - NICET Level II - NICET Level III - NICET Level IV - Glossary - External Links - Licensing - Photographs - Employment - Disney Crud(SM) - Archives 2001 - Archives 2002 - Archives 2003 - Archives 2004 - Archives 2005 - Archives 2006 - Archives 2007 - Archives 2008 - Archives 2009 - Archives 2010 - Archives 2011 - Archives 2012 - Archives 2013 - Misc

ET NewsSM content copyright © 2017
by Michael B. Baker. All rights reserved.
ISSN 1554-074X

RSS Content
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.