Bosch Plena Voice Alarm System Installation And Operation Manual page 110

110 en |
Clause / Requirement
The emergency detection system shall also be
capable of receiving information regarding faults in
the sound system and shall include a provision,
usually at its control and indicating equipment, for
appropriate audible and visual indication of such
faults. As a minimum, the sound system shall be
capable of transmitting to the emergency
detection system one general "Sound system fault"
for any of the fault conditions listed in 5.3 that may
occur within the sound system.
The link between a fire detection and alarm system
and the voice alarm system is of crucial importance
in maintaining the integrity of overall operation. It
may be desirable on larger systems, where
distributed control equipment is used, to provide a
link at each control equipment location rather than
to rely on a central location. Each link shall be
monitored. The voice alarm system shall be
capable of continuing to broadcast alarm
messages, which have been initiated by the fire
detection and alarm system, even in the event of a
subsequent fault in the interconnecting link
between the two systems (i.e. the voice alarm
system shall "latch" on receipt of a signal from the
fire detection and alarm system). Interruption by
higher priority broadcasts shall still be possible.
In complex buildings in which actions, such as
initiation of evacuation signals, silencing of alarm
signals, etc., can be implemented at remote voice
alarm equipment, consideration shall be given to
whether there is a need for such actions to be
indicated at any central fire detection and alarm
control and indicating equipment.
5.6 Secondary power supply
If the building is to be evacuated following primary
power failure, a secondary power supply shall be
provided. This shall be capable of operating the
system in the emergency mode for a period equal
to twice the evacuation time determined by the
appropriate authority for the building. In any event,
the secondary power supply shall be capable of
powering the system for a minimum of 30 min.
9922 141 1037x (V2.16) | V0.6 | 2011.09 Installation and Operation manual
Compliance
Compliant, if properly installed using
trigger outputs. Responsibility of the
installer.
N/a.
Responsibility of the installer.
Power consumption data is available in
various Plena equipment data sheets.
With this information the necessary
back up capacity can be calculated,
Responsibility of the installer.
Bosch Security Systems B.V.
Plena Voice Alarm System
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