Main components of the fire detection system

The main task of a fire detection system is to detect the fire as early as possible and send the fire signal to the fire alarm panel. The secondary task is to avoid faulty fire sensors and system failures.

Example of a fire alarm system on the upper deck of a machinery space The fire protection alarm system shall consist of:

• Smoke Sensors (Smoke Detector) are designed to generate a trigger signal when smoke appears in a protected area. Some sensors of this group can also be installed in dusty rooms.
• Heat sensors (Temperature Detector) are for generating a trigger signal when the temperature in the protected area exceeds a specified limit or the expected rate of temperature rise. These sensors can be designed for conventional and address fire detection systems. Some sensors in this group can be installed in dusty rooms.

NOTE: If necessary, combined smoke/temperature sensors can be installed and combined, which reduces the likelihood of a false fire signal.

• Flame sensors to generate a trigger signal in response to infrared radiation in a protected area. These sensors can detect fire early but are sensitive to extraneous signals. Sources of faulty performance vary depending on the type of traditional sensors.
• Fire Alarm Push Button for manual reporting of an observed fire.
• Fire Alarm Indicator Panel is designed to monitor the operation of fire sensors and other connected equipment, record incoming signals and outgoing messages, report detected faults and declare fire alarms in a programmed order.
• Alarm Bell for fire alarm, lower noise indoors.
• Local electric siren (Electric Horn for Fire Alarm) for declaring fire alarms in noisy rooms.
• Local electric siren (Electric Siren for CO2) to announce the use of the turning on the CO2 fire protection system.
• Rotating Light for the CO2 to announce the use of an existing fire protection system in noisy rooms.