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Bs final

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  • 1. ELECTRICAL APPLIANCES IN LIVING ROOMS DASI MANOJ BA10ARC016 SHUBHAM GAUD BA10ARC019
  • 2. VARIOUS TYPES OFAPPLIANCES1. LIGHTS2. CEILING FAN, TABLE FANS3. AIR CONDITIONERS4. ELECTRIC BELLS/ALARMS5. SECURITY CAMERAS6. TELEVISION7. SECURITY CAMERAS8. ELEVATORS/ESCALATORS9. INVERTORS10. COMPUTERS11. AUDIO SYSTEMS12. DIGITAL PHOTO FRAMES13. DESIGNER LAMPS14. INTRUDER ALARMS15. MICRO SWITCH AND MAGNETIC REED16. ACOUSTIC, VIBRATION AND INERTIA DETECTORS17. LIGHTNING PROTECTION SYSTEMS
  • 3. INTRUDER ALARMS Intruder alarms have developed from a very limited specialist element of electrical installation work in high security buildings to the much wider market of schools, shops, offices, housing, etc. This is largely a result of the economics of sophisticated technology surpassing the efficiency of manual security. Popular applications include: Micro-switch, Magnetic reed, Radio sensor, Pressure mat, Taut wiring, Window strip, Acoustic detector, Vibration, impact or inertia detector. Circuit wiring may be `open or `closed as shown in principle for fire alarms The disadvantage of an open circuit is that if an intruder knows the whereabouts of cables, the detector circuit can be cut to render the system inoperative. Cutting a closed circuit will effect the alarm.

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