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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | EN60849: 1998 en | 17
EN60849 - 4.3.2 Operational priorities
EN60849 - 4.4 Safety requirements
The use of these levels in descending order of priority
will ensure that appropriate alarm signals and
messages are provided first to the zones immediately at
risk.
Compliant, if properly installed. Responsibility of the
installer.
Requirement Compliance Signature
If the voice alarm system is capable of operation in fully
automatic mode, a facility shall always be available to
control:
a The type of pre-recorded message being
broadcast.
Compliant, if properly installed:
• Input contact configured to start a call with a pre-
recorded message.
• Running message can be overridden by higher
priority manually started messages.
b The distribution of messages to different zones. Compliant.
The numeric keypad PRS-CSNKP should not be used
for zone selection for emergency purposes in a system
that has to comply to EN60849:1998, because the
LCD does not have a self-test function to check for
correct operation.
c Real-time instructions or information to occupants
via the emergency microphone (if any).
Compliant, if properly installed. Manual selection of
loudspeaker zones is supported. Adding or removing
zones from a running call is supported.
Means shall be provided for manual intervention to
override any automatically programmed functions. This
shall apply both to the nature of the message being
broadcast and to the distribution paths of the message.
Thus, manual controls shall be provided at the central
control point (and also at specified remote control
points) to allow:
a Starting or stopping of pre-recorded alarm
messages.
Compliant, if properly installed. Running message can
be overridden by higher priority manually started
messages.
b Selection of appropriate pre-recorded alarm
messages.
Compliant, if properly installed. Manual selection of pre-
recorded alarm messages is supported.
c Switching on or off, of selected loudspeaker zones. Compliant, if properly installed. Manual selection of
loudspeaker zones is supported. Adding or removing
zones from a running call is supported.
d Broadcasting of live messages via the emergency
microphone (if any).
NOTE - The above controls may form part of an
emergency detection control panel.
Compliant, if properly installed. Live calls from an
emergency call station are supported.
The emergency control microphone shall have the
highest level of priority for access to the voice alarm
system, with provision to allow it to override all other
broadcasts.
Compliant, if properly installed.
The PC call station (PRS-CSC) should not be used to
make emergency announcements in a system that has
to comply to EN60849:1998, because a PC does not
comply to this standard for such use.
Requirement Compliance Signature
The safety requirements applying to emergency sound
systems are given in IEC60065 or other appropriate
IEC safety standards.
Compliant. Praesideo complies to IEC60065.
The mechanical construction of the system shall be
such that under the influence of internally generated
heat, explosion or implosion, however caused, no part
shall cause injury to any person.
Compliant.
Where any part of the system is installed in areas with
hazardous or explosive atmospheres, the relevant
safety requirements of IEC60079 shall be met.
Responsibility of the installer. The Praesideo equipment
itself does not comply to IEC60079.
Requirement Compliance Signature