Damage Control II

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

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

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

Casualty/DC Reports Initial report Initial report What casualty is & what system What casualty is & what system Where casualty is -> be specific Where casualty is -> be specific Follow up report Follow up report M an in charge M an in charge A ssistance required A ssistance required I njured personnel I njured personnel D amaged equipment D amaged equipment S tatus of casualty S tatus of casualty Keep DC Central informed!!! allows for proper organization of damage control efforts Keep DC Central informed!!! allows for proper organization of damage control efforts “MAIDS” “MAIDS”

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

Extinguishing Agents Alpha: water (firemain, sprinklers) Alpha: water (firemain, sprinklers) Removes heat Removes heat CO2 also acceptable for small fires CO2 also acceptable for small fires Bravo: AFFF, PKP, HALON Bravo: AFFF, PKP, HALON Smothers fire Smothers fire Charlie: CO 2 (portable, installed) Charlie: CO 2 (portable, installed) Displaces Oxygen Displaces Oxygen Delta: water Delta: water Solid stream, fog Solid stream, fog Jettison Jettison

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

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

Firefighting Equipment Foam equipment Foam equipment AFFF - Aqueous film-forming foam AFFF - Aqueous film-forming foam Used for Class B (smothers fire) Used for Class B (smothers fire) Portable extinguishers Portable extinguishers CO 2 : Class C or small Class A/B CO 2 : Class C or small Class A/B AFFF: Class A or B fires AFFF: Class A or B fires PKP: Class B fires (dry chemicals) PKP: Class B fires (dry chemicals)

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

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

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

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

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

Safety Precautions During Damage Control Operations Flashburn Flashburn Electric Shock Electric Shock Exploding Ordnance / Fuel Exploding Ordnance / Fuel Heat Stress Heat Stress Overcome by smoke / CO 2 Overcome by smoke / CO 2 Loss of lighting / Trip hazards Loss of lighting / Trip hazards

Questions?