A conventional fire alarm control panel employs one or more circuits, connected to initiating devices (usually smoke detectors, heat detectors, duct detectors, manual pull stations, and sometimes flame detectors) wired in parallel.
What are conventional fire alarm systems?
Conventional fire alarms are considered to be a budget-conscious option for small buildings, such as coffee shops or retail stores, as the upfront cost is considerably less. In addition, the wiring of the system enables security to identify general zones of fire threat and evacuate staff accordingly.
How does fire alarm control panel work?
They work by responding to changes in an electrical current, such as when a smoke detector identifies smoke and changes the current in response. Once the fire panel detects this current, it sounds the alarm. The conventional fire panel is installed in different zones—such as the first floor, second floor, etc.
Where should a fire alarm control panel be located?
The fire alarm control panel must be located in an enclosed room, i.e. mechanical, riser room, etc. Prior approval of location should be obtained from the Fire Department.
What is a Type 4 fire alarm system?
Type 4: – A fire detection and alarm system with manual call points and smoke detectors, connected to the fire brigade. Heat detectors are allowed to replace smoke detectors in some locations.
What are the characteristics of conventional fire alarm system technology?
Conventional fire alarm systems are made up of zones. Multiple devices, both initiating and notification devices, make up a zone which connect to the main control panel. Conventional systems are analog in that they use electrical currents to communicate with the control panel.
How many devices can be on a fire alarm loop?
Every device connected to the addressable system has its own unique address (up to 250 devices per loop). When a fire is detected, the detectors address is highlighted on the main control panel, indicating exactly which device has been activated.
Which sensor is used in fire alarm?
Photoelectric sensors are the least costly and are employed widely in residential and other fire alarms. They comprise a light source, typically an IR LED and a photodetector, usually a photodiode, together with simple signal processing electronics (Figure 1), housed in a plastic enclosure.
Do I need a fire alarm panel?
Fire alarm panels are would usually be recommended for medium to large buildings, commercial premises and multiple occupancy residential properties. … If you’re not sure which type of alarm you require, it’s best to take advice from fire protection specialists.
What does the fire alarm mean?
A fire alarm is a standalone device or a complete network of devices, installed in a building or an area, which gives audible and/or visible warning of an outbreak of fire in that building or area. A fire alarm system could be automatic, semi-automatic or manual.