FIRE HAZARDSTariq Jamil 17

Shaukat Khan 18

Mohsin Irfan 19

Nauman Khan 20

INDUSTRIAL HEALTH AND SAFETY

• FIRE HAZARDS - Conditions that favor fire development

• Fire – a chain reaction, involving combustion

• FIRE TRIANGLE - starts and sustains fire

• Components:

1. Fuel2. Heat 3. Oxygen

FUEL: Oil, Gas, Wood

Heat: Spark, Friction

Oxygen: Air

INTRODUCTION

FIRE CLASSIFICATIONS

Class D

Class B

SpecialCat.

Class CClass A

Solid Materials: Wood

Plastic

Textiles

Paper etc.

CLASS A

Electrical Short circuits

CLASS C

Combustible Metals Aluminum

Magnesium

Titanium

Zirconium etc.

CLASS D

Extremely active oxides

or mixtures Nitric acid

Hydrogen peroxide

Solid missile propellants

Special Cat.

Flammable Liquids & Gases

CLASS B

CAUSES•Spontaneous Combustions•Hypergolic reactions -Pyrophor hypergolic fuels •Mishandling flammable liquids and gases •Natural & generated electricity can cause fires.•Heat from hot surfaces.•Engines and Compressors.

PREVENTIONGoals:

1. life protection

2. property protection

3. Protection of operation

STEPS: Isolation of Fire Triangle elements Ignition sources should be eliminated or isolated proper storage of flammable liquids Confine smoking to designated areas Periodically check electrically ckts