Planning
Functions
4
20 | 118
Building Technologies
A6V10211100_f_en_--
Fire Safety
2015-12-15
4.2 Functions
This chapter describes the most important functions that can be supported by the
fire detection system.
Decision on alarm
The danger signals of the detectors are evaluated by the zone. The decision on
alarm is made at zone level. Decision on alarm can be configured as follows for
each zone:
● Single-detector dependency
– The first detector in the zone which detects the corresponding danger level,
triggers a fire alarm.
● Multi-detector dependency
– The danger levels of several detectors are included in the alarm decision
(e.g. two detectors reporting danger level 3).
Alarm verification concept for delayed alarm transmission
The alarm verification concept (AVC) serves for delayed alarm transmission. The
operating personnel are integrated into the alarming process. During the time (t1)
for monitoring attendance, a check is run to establish whether operating personnel
are present. The operating personnel can examine the fire location during the
investigation time (t2) and can prevent the alerting of the fire brigade in case of
false alarm.
This behavior is only applicable in operation mode 'Manned'.
In operation mode 'Unmanned', the alarm transmission is activated immediately.
An attendance check delay (t1) can be configured for each fire control panel. The
investigation time (t2) can be defined by zone.
Controls
Universal controls can be configured to automatically actuate the appropriate
controls in the event of an alarm. Any events (e.g. alarm or isolation) are linked
logically (OR, AND, NOT) to activate the controls (e.g. the closing of fire doors).
Evacuation
To ensure a controlled evacuation of people from the building in the event of fire, it
is possible to configure chronological alarming in different building sections.
Remote access
The Cerberus Remote Operating Tool provides a PC-based PMI for remote access
to the fire detection system. Remote access to the fire detection system is possible
with the Cerberus Remote Tool. Cerberus Remote is connected to the Ethernet
port of a station.