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Damage Control II

Damage Control II. Objectives. DC Actions & Reports Classes of Fires & Combating them Firefighting Systems & equipment Flooding systems & equipment. General DC Actions. Rig spaces for casualty Establish primary & secondary boundaries Fight and control casualty with appropriate means

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Damage Control II

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  1. Damage Control II

  2. Objectives • DC Actions & Reports • Classes of Fires & Combating them • Firefighting Systems & equipment • Flooding systems & equipment

  3. General DC Actions • Rig spaces for casualty • Establish primary & secondary boundaries • Fight and control casualty with appropriate means • Localize casualty & stop flooding/extinguish fire • Restore systems to operation • Ventilate the affected spaces if necessary

  4. Flooding & Fire • Must ensure restoration of vital services • Propulsion • Electrical power • Vital piping and machinery • Must always keep safety in mind -> NEVER try to be a one person DC party!!!

  5. Casualty/DC Reports • Initial report • What casualty is & what system • Where casualty is -> be specific • Follow up report • Man in charge • Assistance required • Injured personnel • Damaged equipment • Status of casualty • Keep DC Central informed!!! allows for proper organization of damage control efforts “MAIDS” “MAIDS”

  6. heat oxygen fuel Fires • Elements of the fire triangle • Heat • Oxygen • Fuel • Classes of fires • Alfa: wood, paper (leaves ash) • Bravo: fuel, oil (flammable liquids) • Charlie: electrical • Delta: combustible metals (Mg, Na, Ti) • Safety concerns: smoke, toxic gases, heat, explosion

  7. Extinguishing Agents • Alpha: water (firemain, sprinklers) • Removes heat • CO2 also acceptable for small fires • Bravo: AFFF, PKP, HALON • Smothers fire • Charlie: CO2 (portable, installed) • Displaces Oxygen • Delta: water • Solid stream, fog • Jettison

  8. Firefighting Equipment • Firemain system • Receives water from sea & distributes to hoses and sprinklers • Several types of construction • Single Main (small ships) • Horizontal Loop • Vertical Loop • Sprinkler systems • Installed in magazines, turrets, weapons rooms • Can be manual or automatic

  9. Firefighting Equipment • All-purpose nozzle • Solid stream • High-velocity fog • Low-velocity fog (rotate nozzle) • Hoses • Standard • 50’ or 100’ lengths • 1.5” diameter • Collapsible

  10. Firefighting Equipment • Foam equipment • AFFF - Aqueous film-forming foam • Used for Class B (smothers fire) • Portable extinguishers • CO2: Class C or small Class A/B • AFFF: Class A or B fires • PKP: Class B fires (dry chemicals)

  11. Firefighting Equipment • Oxygen Breathing Apparatus (OBA) • Self-contained breathing protection • Generates its own oxygen • Provides 30-45 minutes of air/canister • Emergency Exit Breathing Device (EEBD) • Self-contained • Provides 15 minutes of oxygen to allow for escape • Emergency Air Breathing (EAB) • Breathing device that plugs into ship’s air • Essentially unlimited air supply • Must unplug/replug each time you move

  12. Firefighting Equipment • Naval Firefighting Thermal Imager (NFTI) • Battery-powered thermal imaging device • Provides “sight” in poor visibility (smoke) • Provides indication of hot spots • Fire Fighting Ensemble (FFE) • Flame/heat retardant • Full-body suit to prevent exposed skin • Worn in conjunction with OBA

  13. Flooding • Can occur for a number of reasons • Missile / Torpedo hit • Damaged piping • Running aground • Must not only stop flooding but also remove water that has entered ship • Drain system used • Portable submersible pumps used • Repair leak & structural damage • Use shoring, wedge, shole, strongback etc.

  14. Flooding Actions • Identify flooding location • Stop / Limit flooding • Establish boundaries • Water tight bulkheads • Piping system • Repair: shoring, patching, plugging • Dewater Spaces • Restore vital systems / equipment

  15. Priority of Dewatering • Spaces where damage cannot be repaired? • Stability (List / Trim) • Equipment: • P-250 pump • Electric submersible pump • Eductor

  16. Safety Precautions During Damage Control Operations • Flashburn • Electric Shock • Exploding Ordnance / Fuel • Heat Stress • Overcome by smoke / CO2 • Loss of lighting / Trip hazards

  17. Questions?

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