Here is a small project on fire alarm. When a fire accident is happened in home or office, it will detect the fire (intensity of fire in the room) at instant and give the alarm so we can be ready and ...

This is a circuit named “Fire Alarm” which alerts us by ringing a siren sound when there is a fire accident at home or office. This is a circuit named “Fire Alarm” which alerts us by ringing a siren ...

Normally, the fire alarm initiating device, notification appliance and signaling line circuits are not run outside the building. When we have no choice but to run them overhead or underground, ...

Article 760 covers the installation of wiring and equipment for fire alarm systems, including circuits controlled and powered by the fire alarm. Those circuits are for such things as fire detection ...

Interest in emergency systems rose sharply after 9/11 and remains high. Building owners no longer install fire alarm signaling systems just to satisfy their insurance company. Today, their motivation ...

Q. I have a powerful fire alarm control unit that has built-in capability to attach security and access control devices, when it's desired, to provide a comprehensive (and economical) life-safety ...

Editor's note: This is the second in a two-part series on fire alarms in Pittsfield. Back in the 1950s and '60s, you could find fire alarm boxes in Pittsfield on telephone poles or on walls of ...