Thomas P. Hammerberg

Freelance Writer

Thomas P. Hammerberg, SET, CFPS is president of Hammerberg & Associates Inc. He serves as Director of Industry Relations for 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 2017
Beginning with the 2010 edition of NFPA 72, National Fire Alarm and Signaling Code, all of the “styles” of circuits were deleted, and four “classes” were added. A new chapter, Circuits and Pathways, was added during the reorganization of this code. READ MORE
February 2017
There has been discussion about unwanted alarms in the last few years. The fire service says this is “an industry problem,” but is it? What can be done to improve the reliability of fire alarm systems so people stop ignoring alarms when they activate?
December 2016
In October, I listed some of the significant changes proposed for the 2019 edition of the NFPA 72, National Fire Alarm and Signaling Code. This month, I cover more of the important proposed changes. Keep in mind that this is based on the public input stage. READ MORE
October 2016
It seems like we just finished working on the 2016 NFPA 72, National Fire Alarm and Signaling Code, but the deadline to submit public inputs for the 2019 edition was June 29. I am on the protected premises and correlating committees and thought it would be good to write a preview of some of the more significant proposed changes. READ MORE
August 2016
There is no question today’s fire alarm systems are more complex than they were 20 years ago. More panels are addressable, which means programmers, installers and inspection and testing personnel need to be better qualified.
June 2016
For healthcare facilities, many states use only National Fire Protection Association (NFPA) 101, Life Safety Code, because it is the code that the joint commission references. However, some states use the International Building Code (IBC) with the fire alarm requirements from NFPA 101 instead of the International Fire Code. 
April 2016
In today’s world, wireless is our life. Your mobile phone and tablet operate on either a cell signal or Wi-Fi. We connect our computers using Wi-Fi most of the time, in our homes and offices and when we travel. Fire department personnel count on their radios for responding to alarms and communicating on the scene. 
February 2016
We all know fire protection is a lot more than a fire alarm or a sprinkler system. In many buildings, the fire alarm is integrated with other systems for the purpose of making the building safer. Who ensures all of the systems perform together properly?
December 2015
In my last article, I wrote about the significant changes to the 2016 NFPA 72, National Fire Alarm and Signaling Code. One change that I did not bring up is to the NFPA process. In 2016, the “change lines” in the columns next to revised or new text will no longer be there. NFPA has decided to remove them from NFPA 72 and will show both the old and new text in the NFPA 72 Handbook. READ MORE