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Learning Outcome 4

Learning Outcome 4. Understand the types, applications and limitations of wiring systems and associated equipment This presentation looks at emergency management systems. Emergency management systems. Non-automatic operator required Automatic no operator no break

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Learning Outcome 4

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  1. Learning Outcome 4 Understand the types, applications and limitations of wiring systems and associated equipment This presentation looks at emergency management systems

  2. Emergency management systems • Non-automatic • operator required • Automatic • no operator • no break • very short break – within 0.15s • short break – 0.15–05 seconds • lighting break – 0.5–5 seconds • medium break – 5–15 seconds • Batteries – fire alarms, emergency lighting • Diesel generators – essential services (hospitals, etc.) • Rotary systems – provides overlap between them

  3. Emergency management systems Using a current version of BS 7671 look up and write down a summary of the following regulations: • 560.6 • 560.6.10 • 560.7 • 560.7.10

  4. Emergency lighting systems • Emergency escape lighting • enables safe exit on power-fail • Standby lighting • enables normal activity on power-fail • Escape route lighting • allows escape via direction-finding routes • Open area (or anti panic) lighting • direction-finding towards escape routes • High risk task area lighting • allows proper shut down in potentially dangerous areas

  5. Emergency lighting systems • Duration • Category of system • Type of premises, which affects luminance levels • Type of system (self-contained or centrally fed) • Category of operation of luminaire • Mounting height and glare

  6. Emergency lighting systems • Maintained • Non-maintained • Sustained • Self-contained You may see these codes – what do they mean? • M3 • NM2 • S1

  7. Categories of luminaires

  8. Fire alarm systems • Property protection • Type ‘P’ • P1 • P2 • Life protection • Type ‘L’ • M • L1 • L2 • L3 Look these up and write down what they mean. Remember – you may be fitting them so it’s important.

  9. Types of fire detection system • Control panel • Wiring system • Manual call points • Automatic detectors • Sounders and, sometimes, visual indicators

  10. Control panel and wiring system • Control panel • location • supply • Wiring system • wiring system for sounders • wiring system for detection circuits

  11. Automatic detectors • Fixed temperature heat detectors • Rate of rise heat detectors • Optical smoke detectors • Ionised smoke detectors

  12. Typical maintenance checks for fire detection systems • Daily inspection • Weekly test • Quarterly test • Annual test • Every two to three years • Every five years

  13. Intruder alarms • Control panel • Proximity switches • Inertia switches • Passive infrared detectors • Ultrasonic detectors • Audible and visual warning devices • Pressure switches • Magnetic switches

  14. CCTV • Wired or wireless • Infrared lighting • Ensure surrounding lighting has good colour rendering

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