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Fire Detection and Alarm System (FDAS).pptx
The document outlines the fire detection and alarm system (FDAS) presented by S. M. Murshidur Rahman, detailing preventive and protective fire safety measures, types of fire detection devices, and occupancy classification per BNBC 2020. It discusses integration aspects of FDAS with fire fighting systems and specifies inspection procedures alongside codes and regulations like BNBC and NFPA. It serves as a comprehensive guide for understanding the technical features and classifications involved in fire safety systems.
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Fire Detection and Alarm System (FDAS).pptx
- 1. Fire Detection &Alarm System Presented by: S. M. Murshidur Rahman Officer (FW & LF) BMTF Limited, Gazipur.
- 2. Fire Safety Preventive MeasuresProtective Measures (adopted to detect and warn fire forecast) (adopted to extinguish fire and minimize damage) Fire Detection System (FDS) Fire Alarm System (FAS) Fire Detection and Alarm System (FDAS) Automatic Manual (Activate themselves automatically) (Activated by Manual Call Point) Fire Safety Assurance System
- 3. FDAS Based onTechnical Feature Addressable Conventional (Microprocessor based intelligent system. Control panel communicates with each addressable device individually.) (Usually not based on Microprocessor. Panel can only identify if any detector triggers in a zone.) Types of FDAS
- 4. Different Types ofFDS Devices i) Optical or Ionization Smoke Detector ii) Multi Sensor Detector iii) Heat Detector iv) Reflective Beam Smoke Detector v) Air Sampling Smoke Detector vi) UV/IR Flame Detector vii) Spark/Ember Detector viii)Duct Smoke Detector ix) Gas Leakage Detector x) Video Image Smoke Detector
- 5. Different Types ofFire Detection Devices Optical Smoke Detector Multi Sensor Detector Heat Detector Beam Reflector Smoke Detector Air Sampling Smoke Detector Flame Detector
- 6. Different Types ofFire Detection Devices Spark/Ember Detector Gas Leakage Detector Video Image Smoke Detector Duct Detector
- 7. Different Types ofFire Alarm Devices Horn & Strobe Wall Mount Ceiling Mount Horn Strobe Speaker Horn & Strobe Horn Strobe Speaker
- 8. Detector & NotificationAppliances Selection Parameters to Consider Occupancy Type Work Process and Function Fuel Characteristics and Distribution Structural Features of Building Ambient Condition of the Area Performance Objectives Human Factors Notification Mode: Public or Private Application Codes and Standards
- 9. Occupancy Every building orportion there of shall be classified according to its use or character of occupancy. A brief description of such occupancy groups is discussed at BNBC 2020 (Part-III, Chapter-I, Page: 2629-2631). Table 3.1.1: Summary of Occupancy Classification (BNBC 2020: Part-III, Chapter-I, Page: 2629-2631) Occupancy Type Subdivision Nature of Use or Occupancy Fire Index A: Residential A1 Single family dwelling 1 A2 Two families dwelling 1 A3 Flats or apartments 1 A4 Mess, boarding houses, dormitories and hostels 1 A5 Hotels and lodging houses 1 B: Educational Facilities B1 Educational facilities up to higher secondary levels 1 B2 Facilities for training and above higher secondary education 1 B3 Pre-school facilities 1 D: Healthcare Facilities D1 Normal medical facilities 2 D2 Emergency medical facilities 2 H: Storage Buildings H1 Low fire risk storage 3 H2 Moderate fire risk storage 3 J: Hazardous Building J1 Explosion hazard building 4 J2 Chemical hazard building 4 J3 Biological hazard building 4 J4 Radiation hazard building 4
- 10. Building Classification Table 3.1.2:Summary of Classification of Buildings Based on Types of Construction BNBC 2020: Part-III, Chapter-I, Page: 2631 Construction Group Construction Type Description Group I: Non-combustible Type I-A 4 hour protected Type I-B 3 hour protected Type I-C 2 hour protected Type I-D 1 hour protected Type I-E Unprotected Group II: Combustible Type II-A Heavy timber Type II-B Protected wood joist Type II-C Unprotected wood joist Type II-D Protected wood frame Type II-E Unprotected wood frame
- 11. Integration of FireDetection & Alarm System • Interface between fire alarm system and fire fighting which means we can interface through monitor module which includes fire fighting devices (if provisions available) like flow switch, fire hose reel and fire pump/diesel pump status, Supervisory gate valve, zone control valves.
- 12. Integration of FireDetection & Alarm System
- 13. Types of IntegrationDevices Input Unit Output Unit (used to connect non-addressable devices) Integration Devices (used to control lift, cut off power etc.) Input/Output Unit (Used where both functions are required)
- 14. 1. Diesel EngineRun 2. Electric Pump Run 3. Jockey Pump Run 4. Electric Pump Reversal 5. Electric Pump Motor Trouble 6. Electric Pump Controller Trouble 7. Pump Room Trouble 8. Electric Pump Suction Riser Close 9. PRV Water Flow 10. Hydrant Riser Close 11. Sprinkler Riser Close etc. Some Types of Input Modules
- 15. 1. Fire DoorInterfacing 2. Lift/ Elevator Interfacing 3. Exhaust Fan/ Basement Ventilation Fan Interfacing 4. PAVA System Interfacing 5. HVAC System Interfacing 6. Fire Curtain Interfacing 7. Fire Damper/ Smoke Damper Interfacing 8. Sprinkler System Interfacing 9. Fire Suppression System Interfacing etc. Some Types of Output Modules
- 16. Fire Detection andAlarm System Drawings
- 17. Fire Alarm SystemInspection Procedure Step 1: Put the fire alarm system on test (if it is externally monitored) Step 2: Activate one of the fire alarm call points Step 3: Confirm operation of the alarm sounders and any other connected equipment such as magnetic door holders Step 4: Reset the call point Step 5: Reset the fire alarm panel Step 6: Take the fire alarm system off test (if monitored)
- 18. Code & Rulesand Regulation Code & Rules and Regulation Followed : a. BNBC -2006 (Old Building ) b. BNBC -2020 ( Proposed /Newly constructed Building) c. Fire Act -2003 d. Fire Rules -2014 (Revised is on going) e. NFPA -72 (2019 Edition)
- 19. For more details…… Engr.S. M. Murshidur Rahman Email: [email protected] Facebook: https://www.facebook.com/murshidur.rahman.5203 LinkedIn: www.linkedin.com/in/murshidur-rahman Youtube: https://www.youtube.com/c/MurshidurRahman
- 20.