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

June 2013
The last few code cycles have introduced an increasing number of performance-based allowances into NFPA 72, the National Fire Alarm and Signaling Code. Performance-based design of detection systems, visible notification appliances, emergency communications systems and performance-based testing are now permitted. READ MORE
April 2013
The history of classes and styles of circuits is interesting. Back in 1987, a proposal was accepted to start using Styles of Circuits instead of the Class A and B we were all used to. Well, at least some thought so. Eliminating the classes was very confusing to the industry, so in 1993, Class A and B were put back in the National Fire Alarm Code—along with the styles. 
March 2013
The beginning of 2013 is a good time to review what is happening with codes and standards that affect fire protection. The International Code Council held its Group A hearings for the 2015 codes last year (International Building, Existing Building, Fuel Gas, Mechanical and Plumbing codes) and are now beginning the Group B hearings (International Fire, Residential and a host of other I-codes). READ MORE
December 2012
Opportunities for new business in the commercial/industrial/institutional market continue to grow for electrical contractors. Two in particular—commissioning and integrated testing of fire protection systems and mass notification systems (MNS)—have a lot of potential for growth and new business. READ MORE
October 2012
Now that the 2013 NFPA 72, National Fire Alarm and Signaling Code, is ready to hit the market, let’s look at the changes and review the installation requirements. As we know, there has been a great deal of discussion regarding nuisance alarms in the last few years. Much of the discussion applies to commercial, residential and nuisance alarms in general. READ MORE
August 2012
Good companies focus on providing a quality installation of life safety systems, but great companies build relationships to strengthen their bottom line. Life safety systems must be maintained and tested to ensure continued reliability, and someone has to do it. It might as well be you! Lack of proper maintenance and testing is a leading cause of system failures. READ MORE
June 2012
Although attempts at commissioning and fully integrated testing of fire protection systems have occurred in the past, they have been hit or miss. It is especially important with fire and life safety systems because, in many cases, these systems sit there passively until an emergency arises and they need to work properly. Will they? Have the integrated systems ever been tested together? READ MORE
April 2012
Carbon monoxide (CO) is a colorless, odorless and tasteless gas that in sufficient concentrations, can threaten life. Due to recent deaths attributed to CO, the codes now have requirements to install CO detectors or alarms in both commercial and residential occupancies that have attached garages or when fossil-fuel burning appliances are in use in an enclosed area. READ MORE
February 2012
Let’s refresh our memory on the methods for choosing the correct codes and standards for an installation. With so many, it can be sometimes difficult to determine which requirements we must meet. In many states, there are conflicting codes. So where do you start? READ MORE