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An Introduction to Low Frequency Audible Alarm Requirements in Various Codes & Standards

About This Webinar

Today the window of escape time in flaming fires is 3 minutes compared to 17 minutes in 1976, because fires today burn hotter and faster therefore leaving people less time to safely escape than 40 years ago. Smoke alarms and fire alarm systems provide value when building occupants are awake, but their greatest benefit is when the occupants are asleep. Most commercially available audible alarm notification appliances produce an audible fire alarm signal between 2KHz and 4KHz, and nearly all integral smoke alarm sounders produce a 3KHz audible alarm signal. Numerous research studies have concluded that a low frequency audible alarm signal with a fundamental frequency of 520 Hz is the most effective signal for awakening people who are hard of hearing, school age children and the elderly. This informative presentation will review the research studies and cover the low frequency signaling requirements in the 2010 edition of NFPA 72, National Fire Alarm and Signaling Code ®, UL 464, Standard for Safety Audible Signal Appliances, and UL 217, Single and Multiple Station Smoke Alarms.

Who can view: Everyone
Webinar Price: Free
Featured Presenters
Webinar hosting presenter
Senior Industry Affairs Manager, Honeywell Fire
Over thirty-five years of experience in the installation, sales, commissioning and product management of code compliant commercial fire alarms, carbon monoxide detection, emergency communication and security systems. Mr. Roberts is responsible for codes and standards development at the federal, state, and local level as well as legislation. Currently Mr. Roberts is serving on:

17 National Fire Protection Association (NFPA) Technical Committees

2 Underwriters Laboratories (UL) Standards Technical Panels for carbon monoxide detection

Member of numerous International Code Council (ICC) Fire Code Action Committee (FCAC) working groups

Board member of the International Association of Fire Chiefs’ (IAFC) Fire and Life Safety Section (FLSS)

Member of the National Association of State Fire Marshals (NASFM) Model Codes Committee

Board member of the Center for Campus Fire Safety (CCFS)

Board member of the Safer Buildings Coalition (SBC) and Chair of the SBC Government Affairs Committee

Chair of the National Electrical Manufacturers Association (NEMA) Building Codes Committee

Chair of the U.S. TAG to the International Organization for Standardization (ISO) TC 21/SC 3 (Fire Detection and Alarm Systems)
Webinar hosting presenter
Director of Design, Code Consultants, Inc.
Cory Ogle, PE, RCDD, has over 25 years of experience in managing innovative and cost-effective Fire Protection and Information & Communications Technology (ICT) designs, 16 of those years with CCI. He has managed hundreds of public and private sector projects, including institutional, governmental, higher education, hospitality, mixed-use, retail, office, distribution centers, and federal markets.

Cory holds a BS in Electrical Engineering from the University of Missouri-Rolla (now known as the University of Missouri Science & Technology). He is a licensed Professional Engineer in the states of California, Florida, Missouri, New York, and Texas and a Registered Communications Distribution Designer (RCDD). Cory is an active member of the Automatic Fire Alarm Association (AFAA), the Society of Fire Protection Engineers (SFPE), and the National Fire Protection Association (NFPA). He serves as a member of the NFPA Technical Committees on Single- and Multiple-Station Alarms and Household Signaling Systems and the Correlating Committee on Signaling Systems for the Protection of Life and Property. He is a Principal member on the following UL Standards Technical Panels: 2524: In-Building 2-Way Emergency Radio Communication Enhancement Systems and 2572: Mass Notification System Communication and Control Units.
Webinar hosting presenter
Fire Program Manager, International Association of Fire Chiefs
Richard Miller has over 43 years of experience in the fire service industry as a career and volunteer firefighter and now as a Fire Service Program Manager for the Firefighter Safety Research Center at the IAFC. He has held the positions from Firefighter to Training Officer for the City of Fairfax Fire Department in Virginia. His goal is to provide knowledgeable factual information to the fire service industry to meet a diverse community by established leadership, that meets the needs of the leading Fire Chiefs.
Hosted By
International Association of Fire Chiefs webinar platform hosts An Introduction to Low Frequency Audible Alarm Requirements in Various Codes & Standards
The International Association of Fire Chiefs represents the leadership of over 1.2 million firefighters and emergency responders. IAFC members are the world's leading experts in firefighting, emergency medical services, terrorism response, hazardous materials spills, natural disasters, search and rescue, and public safety legislation. Since 1873, the IAFC has provided a forum for its members to exchange ideas and uncover the latest products and services available to first responders.