User Manual

29
Siemens Switzerland Ltd
Building Technologies Division
3.5.5. Summary table
Roadside Regional Metropolitan High-rise
Characteristic One- or two-story
buildings
Lowrise buildings:
• Up to 5 stories
Single building:
• 6 or more stories
City hotels of
skyscraper
appearance
Alarm and
evacuation
• General alarm
• Simultaneous
evacuation
• General alarm
Up to 3 stories:
• Simultaneous
evacuation
• Basic voice alarm
system
• Staged alarm
4 and 5 stories:
• Phased evacuation
• Voice alarm system
• Live voice directed to
selected areas
• Staged alarm
• Phased evacuation
• Voice alarm system
• Live voice directed to selected areas
Escape routes • Straightforward • Clogging of stairways
possible as all exit
routes may lead
through main lobby
• Complex with
separate
stairways
• Signage at all
decision points
• Emergency
lighting
essential
• Extremely vulnerable
• Signage at all
decision points
• Emergency lighting
essential
• Pressurized
emergency staircases
• Fire resisting
elevators
Smoke
control
• Smoke escapes
easily via open
staircases
• Limited danger
of suffocation
• Air conditioning
system controlled via
fire detection system
• Zones in alarm:
- exhaust fans
running
- supply fans stopped
• Existing HVAC
equipment
• Pressurization
and smoke
extraction fans
• A sophisticated
smoke control system
is essential
Elevators • No elevators • Out of service at fire-
brigade access level
• Open doors
• Function allowing
firefighter use
• Out of service at
fire-brigade
access level
• Open doors
• Function
allowing
firefighter use
• Out of service at fire-
brigade access level
• Open doors
• Firefighter elevators
Special
infrastructure
Display and control panel with access to:
• Fire detection system
• Air handling system
• Voice alarm system (including microphone
for live voice messaging)