Thomas P. Hammerberg

Freelance Writer

Thomas P. Hammerberg, SET, CFPS is president of Hammerberg & Associates Inc. He serves as technical director of the Automatic Fire Alarm Association (AFAA) Inc. and represents the association on a number of NFPA committees, including the NFPA 72 Technical Correlating Committee, Protected Premises Technical Committee, NFPA 3 and 4, NFPA 90A and NFPA 101, Fundamentals and Building Services and Fire Protection Equipment committees. In additions, he is a member of the ICC Industry Advisory Committee. Reach him at

Articles by Thomas P. Hammerberg

April 2010
There have been extensive changes to the 2010 edition of NFPA 72, the National Fire Alarm and Signaling Code. One of the more significant changes was the addition of the circuits and pathways chapter, Chapter 12. Twenty years ago, all we had to describe fire alarm circuits was Class A and B. READ MORE
February 2010
Mass notification systems (MNS) are a hot topic in life safety, especially in the educational environment. Although the Army first had the idea of incorporating mass notification into NFPA 72 due to heightened security risks, recent incidents have rapidly expanded interest in MNS on school campuses. READ MORE
October 2009
We have all had experience with smoke detectors. Specifying the right smoke detector for the application will improve the reliability of fire alarm systems tremendously. Of course, the detector must be installed correctly to prevent problems. READ MORE
June 2009
Every smoke detector serves a different purpose. The primary reason to install them is to provide a means of early warning in the event of a fire. Smoke detectors may be used for detection of fire, to protect equipment or to connect with building functions. READ MORE
April 2009
National Fire Protection Association members will vote on the 2010 edition of NFPA 72, National Fire Alarm Code, at the June NFPA conference in Chicago. If the members accept and the Standards Council approves, it will be available for adoption this fall. READ MORE
February 2009
Although notifying large groups of individuals simultaneously is not new, it is relatively new to combine emergency communications for non-fire alarm emergencies with fire alarm systems. A siren that warns of an approaching tornado is an example of a simple mass notification system. READ MORE
August 2007
To protect today’s public spaces, integration of systems is more important than ever. And in light of recent catastrophic events, the pluses of integrated fire and life safety communications have become perfectly clear. For the first time, the 2007 NFPA 72, National Fire Alarm Code, includes new information for using fire alarm systems with mass notification systems. READ MORE
April 2007
New technologies add layers of safety and security Fire alarm systems, like everything else, don’t last forever; periodically, they must be upgraded due to old age, nuisance alarms, lightning damage or because of a building expansion. Whatever the reason, there are numerous issues to consider before the system can be upgraded successfully. Design considerations READ MORE
December 2003
There are many types of financial institutions and numerous possible ways to protect these facilities against the threat of fire. There are banks and credit unions, as well as data centers that process the transactions and credit card purchases with large computer room facilities. There are also ATMs in varied and sometimes remote locations. READ MORE