Essentials-ClallamCountyFireServiceOn-LineTraining[要点 - 克拉勒姆县消防在线培训](-51).pptVIP

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Essentials-ClallamCountyFireServiceOn-LineTraining[要点 - 克拉勒姆县消防在线培训](-51).ppt

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Essentials-ClallamCountyFireServiceOn-LineTraining[要点 - 克拉勒姆县消防在线培训](-51)

Firefighter II Essentials of Fire Fighting, 5th Edition Chapter 15 Lesson Goal After completing this lesson, the student shall be able to attack Class B fires and coordinate interior attacks following the policies and procedures set forth by the authority having jurisdiction (AHJ). Specific Objectives 1. Summarize considerations for hoseline selection. 2. Discuss stream selection. 3. Discuss suppressing Class B fires. 4. Explain why bulk transport vehicle fires are difficult incidents. Specific Objectives 5. Discuss control of gas utilities. 6. Discuss command at structural fires. 7. Extinguish an ignitable liquid fire. (Skill Sheet 15-II-1) Specific Objectives 8. Control a pressurized flammable gas container fire. (Skill Sheet 15-II-2) 9. Establish Incident Command and coordinate interior attack of a structure fire. (Skill Sheet 15-II-3) Hoseline Selection Factors Fire conditions Fire load, material involved Volume of water needed Stream reach needed Hoseline Selection Factors Number of firefighters available to advance hoselines Need for speed, mobility Tactical requirements Ease of hoseline deployment Potential fire spread Stream Selection Dictated by fire situation, capabilities of nozzle being used Solid-stream nozzle projects water in more-or-less solid mass Stream Selection Combination (fog) nozzles project water in range of patterns Straight and solid streams Combination fog nozzles Converting Water to Steam Critical to heat absorption Excess steam production can obscure vision, inflict steam burns Appropriate water application methods critical Class B Fires Those that involve flammable and combustible liquids, gases Flammable liquids — Flash points less than 100oF (38oC) Class B Fires Combustible liquids — Flash points higher than 100oF (38oC) Divisions of flammable, combustible liquids Hydrocarbons Polar solvents Actions and Precautions Avoid standing in pools of fuel/runoff water because there may be fuel floating on top of water PPE soak