Voltage drop is critical to the proper operation of devices attached to a fire alarm system. Nowhere is this as true as with notification appliance circuits (NACs) that connect to a fire alarm control panel. Seven steps show how to do the calculations.
Combination fire-intrusion alarm systems are a viable life-safety and security solution, providing they adhere to NFPA guidelines. Key considerations include nothing impeding the fire detection function and that it also supercedes security alarm signaling.
Backed with the mandates set forth by codes and bolstered with new technologies, the fire/life-safety market offers robust sales opportunities. Success is predicated on deriving necessary state and local credentials, and knowing the local building authority’s requirements and procedures ...
Proper fire detection is essential not only for life safety but also to avoid false alarms or system malfunctions that could cost the business a bundle. In particular, this holds true for financial institutions ...
Though not as quick to migrate to IT network signal transmission as other systems installed by security contractors, fire/life safety is nevertheless following suit. Find out the latest technology and code developments in this emerging area.
Maintaining power is one of the foundations of any fire/life-safety system. Find out the codes, standards and calculations you need to know to make sure batteries deliver when needed.
A Q&A session addresses code compliance challenges associated with projected beam smoke detectors, annunciators and keypads.
Al Colombo addresses comments prompted by the September's column, "Finding Faults in Fire Systems."
Al Colombo discusses the simple -- yet vital -- steps to better ladder safety.
Of all the troubles that fire alarm technicians are likely to encounter, ground-faults are one of the most difficult to locate and fix. When a ground-fault does occur in a fire alarm system, any number of things can take place.
An important part of what makes fire/life-safety systems easy to sell is that municipal and county governments, by way of sanctioned building departments and knowledgeable inspectors, have established laws or ordinances mandating their installation and maintenance ...
Fire alarm installation entails more than merely placing smoke detectors in strategic areas of a building. Technicians are often required to interface fire alarm systems with other building subsystems.
Veteran installers will undoubtedly remember when fire alarm panels worked almost exclusively by relay technology. As technicians, we encounter relays every day in the field on alarm panel motherboards, smoke detectors, addressable heat sensors and a host of other devices.
On April 8, the FCC issued a public statement in the form of a document titled, FCC Announces Broadband Action Agenda, that in essence says whether anyone likes it or not we’re going to phase out plain old telephone service (POTS), also known as the public switched telephone network (PSTN) and in its place create an IP-switched national infrastructure.
This past December, the FCC began a legal process that if successful will lead to the demise of plain old telephone service (POTS). This has paradigm-shifting and potentially catastrophic implications for our industry.
The need for accurate, timely info has always been a problem, but recently civilian and government authorities decided it was time to do something about it.
Mass notification, a relatively new development in life safety, can be defined as "a technology that provides real-time information to groups of individuals within large buildings, campus settings, geographic regions, or entire nations."
The number of injuries and deaths due to carbon monoxide (CO) poisoning routinely increases every year as cold weather moves across the nation. The CO threat is an ever-present danger to humankind and animals. This is especially true during the winter months when it becomes necessary to use combustible heating, such as fireplaces and gas- and oil-fired furnaces.
In September's "Fire Side Chat" we talked about false alarms and how they can overwhelm public agencies, such as firefighters and police personnel, impact municipal budgets, and how end users are often fined to offset the negative monetary effects.
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December 2013 Issue
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