a. A fixed fire detection and the alarm system with manually operated call points shall be capable of immediate operation at all times.
b. Occurrence of a fault condition shall initiate a visual and audible fault signal at control panel and will be distinct from a fire alarm.
c. Including an emergency sources, there will be 2 independent sources of power supply for a fire detection and fire alarm system.
d. Detectors and manually operated call points will be grouped into sections. Activation of any detector or manually operated call point will initiates a visible and audible alarm. The indicator unit will denote a section or zone in which a fire detector or a manually operated call point has operated.
Suitable instructions and spares for test and maintenance of above equipment must be available on board.
All fire detectors must be tested periodically for correct operation and restored to normal surveillance.
6.1 Fire Detection System
Fire Detection Systems are fully automatic, with the purpose to warn of fire by optical and acoustic alarm. The system consists of a general unit with one or more group units. Each group unit consists of two or five sections. In case of main supply failure, a battery included in the system is automatically switched on. The detectors subdivided into suitable sections are located in fire hazard areas.
6.2 System Fundamentals
When a fire occurs, a detector is activated generating an alarm signal. This alarm signal is sent to the central panel, which in turn releases the optical and acoustic alarm.
The central panel is available as a 19 rack for console mounting.
There are several different types of detectors, depending on installation site and demands on speed to indicate a fire.
Smoke and flame detectors are the types that react to fires quickest.
For detailed instructions, please consult instruction manual for fire alarm system which is available on bridge.
