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Fire hazards

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Fire hazards

  1. 1. FIRE HAZARDSTariq Jamil 17Shaukat Khan 18Mohsin Irfan 19Nauman Khan 20INDUSTRIAL HEALTHAND SAFETY
  2. 2. • FIRE HAZARDS - Conditions that favor fire development• Fire – a chain reaction, involving combustion• FIRE TRIANGLE - starts and sustains fire• Components:1. Fuel2. Heat3. OxygenFUEL: Oil, Gas, WoodHeat: Spark, FrictionOxygen: Air
  3. 3. FIRECLASSIFICATIONSClass DClassBSpecialCat.Class CClass A
  4. 4. Solid Materials: Wood Plastic Textiles Paper etc.CLASS A
  5. 5. Electrical Short circuitsCLASS C
  6. 6. Combustible Metals Aluminum Magnesium Titanium Zirconium etc.CLASS D
  7. 7. Extremely active oxidesor mixtures Nitric acid Hydrogen peroxide Solid missile propellantsSpecialCat.
  8. 8. Flammable Liquids & GasesCLASS B
  9. 9. • 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.
  10. 10. Goals:1. life protection2. property protection3. Protection of operationSTEPS: 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