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Fire Safety & security
Date :- 21-09-2016
PRESENTED BY :-
Aalam MohammadJay KumarSem. – 6th
Prog .- B.Voc(ID)
PRESENTED TO :-
Prof. Neeraj GuptaHead of Department
Department of ArchitectureCentral University of Rajasthan
Bandarsindri (kishangarh) Ajmer
Products-
• Fire Alarm System• Fire Sprinkler & Alarm System• Fire Detectors• Fire Extinguisher System• CCTV Cameras
FIRE DETECTION & ALARM SYSTEM
Block diagram of FDA system
Input Devices
OutputDevices
Control Panel
Input Devices
Fire DetectorThe field of fire detection has advanced to where smokedetectors and alarm devices have combined to become life-safety systems. The purpose of an automatic fire-alarm system is to detect an occurrence, alert the control panel and proper authorities, and notify the occupants to take action.
• Smoke detectors
• Heat detectors
Fire Sprinkler
• Sprinkler heads operate individually. Note the red liquid alcohol in the glass bulb. A fire sprinkler system is an active fire protection method, consisting of a water supply system, providing adequate pressure and flow rate to a water distribution piping system, onto which fire sprinklers are connected.
Input Devices
Fire Box When shorted trips an alarm (usually fire)
Installed in the normal exit path
Types of Fire BoxSingle Action
Pull handle onceGlass Break
Glass rod or plate is brokenDouble Action
Lifting of a cover or opening a door
Fire Extinguisher System
A fire extinguisher, or extinguisher, is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user (i.e., no escape route, smoke, explosion hazard, etc.), or otherwise requires the expertise of a fire department.
Types of Fire Extinguisher-1.Water Extinguishers2.Foam Extinguishers3.Carbon Dioxide Extinguishers
Fire Extinguisher System
1.Water Extinguishers
For use on Class A fires only
App 6m throw for jet nozzle App 2m throw for spray type
Aim at base of fire
9L has 45sec minimum duration
Never use on electrical equipment or flammable liquids!!!
2.Foam Extinguishers
For use on Class A & B fires
App 4m throw for jet nozzle App 2m throw for spray type
Apply with caution/do not disturb liquid
9L has 30sec minimum duration
Never use on electrical equipment !!!
3.Carbon Dioxide Extinguishers
Use on Class B & C fires and electrical hazards
Check instructions, before holding discharge horn
Use caution in confined spaces due to asphyxiating effects of CO2
Hold upright at arm’s length, app 1,5m from fire
CCTV (CLOSED CIRCUIT TELEVISION)
Closed-circuit television (CCTV) is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint, or mesh wireless links.
Why Use CCTV
Industrial Safety
Premises Monitoring
Shop Lifting
Monitoring of high secured Zone
Monitoring of Public Areas
Worker Management
Staff Collusion
Staff Protection
Car Park Security
Etc. ……
Type of camera
• Dome Camera• Domes Installs easy in drop ceilings –
usually 2 screws• Since a dome has a covered lens the
direction the camera is pointing is hidden• Dome can accommodate infra-red for
night vision• As the dome camera themselves are
typically small the lens size are limited, Although some dome camera comes with vari-focal lens but the size are limited
Box Camera
When mounting to a wall or any vertical area When viewing distance where a long lens is
required which would not fit inside a dome or bullet camera
When extreme low light (moon light, or a very far street light) are not a consideration
Requires a housing for weather proofing and vandal proofing
When considering this camera accessories like lens, housing, stand etc are to be considered
CCTV System Diagram
Type of Lens-1.Fixed Lens-Common sizes are
12mm08mm06mm04mm3.6mm2.8mm
2.Varifocal Lens-Common Sizes available are
2.5mm~8mm 3.0mm~12mm 5.0mm~50mm
