12/14/2013. Fire alarm and emergency power SPRINKLER HEAD

Transcription

1 Fire alarm and emergency power SPRINKLER HEAD 1

2 Alert signal Alarm signal Fire detector Heat detector Smoke detector Smoke alarm 1. Detector locations 1. Fire detector locations ( ) 2. Smoke detector locations ( (1)) 3. Heat detector locations ( (2)) 2. Sprinkler in lieu of fire detectors 3. Smoke detector in lieu of smoke alarm 2

3 1. Where is required 2. Continuity of fire alarm system 1. Fire wall separation 2. Special designed walkway or vestibule connecting two buildings 3. Multiple occupancy 3. Types 1. Single-stage 2. Two-stage Exercise Is fire alarm system required? 2 storey office with 60 people on each floor one storey restaurant with 143 people 3

4 1. Two storey F2 building with 60 people on each floor. Is fire alarm system required? 2. Where a alarm system is required to be installed, visual alarm signal devise shall (must) be installed: 1. In a center mechanical room 2. Where the ambient noise level is less than 75DBA 3. In a assembly where the music and other sound my exceed 100DBA 4. In a hospital operation room Group Division Single stage Two stage 1 A 1 2 A 2 3 A 3 4 A 4 5 B 1 6 B 2 7 B 3 8 C D E F 1 12 F 2 13 F 3 4

5 1. Near main entrance 2. Near every exit of each floor 3. Height: 900mm-1200mm 1. Audible signals 1. Every where DBA 3. 10DBA above ambient bot not less than 65DBA 2. Visual signal 1. Hearing impairment occupancy space 2. Public corridor of A,B,D,E occupancy 3. Corridor used by public of A occupancy 4. 10% of hotel/motel suites 5. More than 87DBA area 6. Hearing barrier area Note: Visual signal can in lieu of audible signal in special treatment space of B occupancy ( (5)) 5

6 1. Annunciator is required for: o Cross floor area more than 2000m 2,or o more than3 storeys height 2. Zoning o 2000m 2 or NFPA o 2hr fire compartment o Fire compartment in hospital o Shafts o Contained use area o Impeded egress zone o Air handler units serving multiple zones 1. Where 2. Design requirement 1. Two way communication 2. Loud speaker 3. Able to silence the alert/alarm signal 4. 24/7 operator or pre-recorded massage 6

7 1. Prevent smoke circulation 2. Elevator emergency return 3. Electrical supervision 1. Automatic sprinkler system 2. Fire pump 3. Power loss of heat tracing system 4. Fire department notification 1. Single stage system? 2. All two stage system 1. Used in houses 2. Each floor and mezzanine 3. Every bedroom 4. Be permanently connected 5. No disconnect control 6. Backup battery 7. interlocked 8. Smoke detector in lieu of smoke alarm 7

8 1. In a sprinklered building, which of the following will indicate a signal on the annunciator? 1. Increase in water pressure 2. Loss of air pressure in a dry pipe system 3. The increase of air pressure in a pressure tank 4. All above 2. When does a required fire alarm system have to be designed to notify the fire department? 1. That an alert signal has been initiated (yes or no?) 2. That an alarm signal has been initiated (yes or no?) 3. In a two stage alarm system, can the same signal appliance be used to sound the alert and alarm signals? 4. Can music be played through signal device or the voice communication system? 1. Lighting 1. Where? 2. Minimum 2. Emergency lighting 1. Where? 2. Minimum illumination level? 3. Emergency power requirement 1. Where? 2. How long? 8

9 1. How much illumination is required by the code in rooms not mentioned in Article ? 2. How much illumination is necessary for an underground parking garage? 3. What about repair garage? 4. How much illumination is required for A2 meeting room with 100 people? 5. What is the emergency light requirement of the same room? Please indicate the emergency lighting in the required rooms 9

10 1. How long must the emergency power is required to supply for the emergency lighting for: storey apartment building 2. Two storey department store 3. A single storey nursing home? 2. Which one of the following is the minimum value of illumination (in Lx) for emergency lighting in exits? a) 1 b) 10 c) 100 d) What is the minimum time to be provided for a fire alarm supervisory system? a) 6min b) 24hr c) 2hr d) 30min 2. Can a fuel supply to be shared for the building general use and emergency power generator? 3. Can they share with one fuel pipe control valve? 10