Fire Fighting System Slide

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Fire Fighting Installation System

Fixed fire fighting systems are highly desirableand effective, as they are immediately

available and will normally have been designed tomeet the particular risk in the

premises concerned.



Building characteristic

Shopping

complexBasement

Commercial area



Factors that have an influence on the level

of fire fighting installation offered by thisbuilding.

Nu

mbers and types of fire starts Likelihood of fire suppression by occupants

Reliability and effectiveness of the detection

and alarm system

Communication system

Reliability and effectives of the sprinkler system



Smoke detection system

Automatics suppression

For detection

Fire fighting for the occupants

Fire fighting for the brigade



Operation of wet pipe sprinkler

systems and fire detection

systems

Wet pipe sprinkler systemoperation.



Components of a FireSprinkler System Installation

1.Water Source

2.Back

flow

preventer

3.Control

valve 4.Alarm

device

5.Booster

pump

6.Fire

department

system

8.Sprinkler heads 7.Pipe fittings &

hangers



Sprinkler Efficacy

Concerned with whether the system will activate

(deliver waste) and takes into account such matters as

isolation of the system and failure of the water supply

The ability of the sprinkler system to f unction



Smoke detector system



Sprinkler Reliability

The reliability of sprinkler system depends

very much on how it is managed with respect

to modifications taking place within the

building.



Photoelectric Smoke Detector Operation

Smoke produced by a fire affects the intensity

of a light beam passing through air. The smoke

can block or obscure the beam. It can also

cause the light to scatter due to reflection off

the smoke particles. Photoelectric smoke

detectors are designed to sense smoke by

utilizing these effects of smoke on light.



Factor that influence in smoke detection

system

Sentivities of the photoelectric smoke detector

Photoelectric Detectors characteristic



Photoelectric Smoke Detector Operation

A light source and light sensor are arranged so that the raysfrom the light source do not hit the light sensor.

When smoke particles enter the light path, some of the

light is scattered and redirected onto the sensor, causing

the detector to activate an alarm.

These detectors react quickly to visible smoke particles

from smoldering fires, but are less sensitive to the smaller

particles associated with flaming or very hot fires.



Photoelectric Detectors characteristic

Photoelectric detectors are as effective as

ionization detectors in sensing smoke.

Photoelectric detectors respond more qu

icklyto all fires.

Photoelectric detectors are more expensive

than ionization units but the latter provides a

level of built-in security not found in

photoelectric detectors.



Benefit of photoelectric detectors

system

Faster and easier installation.

Secure protection of alarms prior to commissioning.

Faster and easier installation in any scenario.

Faster and easier installation.

Fewer mistakes in sizing and positioning of cable hole.

Faster and easier termination.

Less scope for termination errors.

A simpler and more cost effective surface mount option.

Minimises visual impact and enhances householdersatisfaction.

Early warning can save lives.

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Fire Fighting System Slide