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Stefan Bengtsson Södra Älvsborg Fire Service. Case study: Fire in roof attic, apartment building Contains the description of fire development, tactics.

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Presentation on theme: "Stefan Bengtsson Södra Älvsborg Fire Service. Case study: Fire in roof attic, apartment building Contains the description of fire development, tactics."— Presentation transcript:

1 Stefan Bengtsson Södra Älvsborg Fire Service

2 Case study: Fire in roof attic, apartment building Contains the description of fire development, tactics during the operation Choice of methods and effects of intervention Tactics and methodology based on critical factors in the fire area

3 Case study: Fire in roof attic, apartment building Incident commander decision support and methods are: TIC outside scanning PPV ventilation Cobra by aerial unit or fire truck BA-attack

4 Call to112 Time 22:40, initial information: Smoke coming out from apartment building Some smoke even out in the staircase, reason unknown People will try to meet fire service outside

5 Responding units 22:45 Confirming out: Incident commander Fire truck 1 and 2 Aerial unit 22:48Call to incident commander from 112 Now even smoke out in the staircase 22:51 First unit arriving on the scene Incident commander

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12 Objectives on the scene Building with 4 floors and a total of 14 apartments Fire gas/smoke out in the staircase Smoke seen from the street outside People hanging out from a window Fire gas spreading in the attic Risk of ignition of attic fire gases Unknown starting point of the fire Evening, dark outside

13 Risk assessment Lifesaving operation? Evacuating the building? Rapid spreading of fire gases down into staircase. Risk during intervention inside. Unknown fire behavior at the time. Unknown origin of fire. Fire gases spreading in the attic. Risk of ignition of attic fire gases.

14 Priorities Lifesaving of 2 person hanging out from the window Secure the staircase from smoke/fire gas Consider evacuate occupants Locate the origin of the fire

15 Methodology and intervention Outside lifesaving with the aerial unit Ventilate staircase with PPV-fan Secure staircase with PPV-fan Locate origin of fire with TIC-scanning and visual look Risk assessment based tactic/methodology use Control expanding fire behavior with cobra attack Outside priorities of the first cobra/aerial unit attack

16 Location for the PPV-fans

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19 Points and angels of cobra attack startfire Setup for ariel

20 Studio apartment Cobra waterjet angel percing from the outside. Intend to reatch firegas and hot areas inside the roof.

21 Methodology and intervention Time Temp Cobra attack Normally expected flashover curve 700c BA-intervention (140c) 140c 600c 5 min10 min15 min48 min45 min

22 Thermal scanning in action For decision support Important with knowledge of fire behavior and fire spread Facilitate choice of method

23 Evaluate this TIC information

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25 Compere different color palettes

26 Evaluate this TIC information

27 Compere different color palettes

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29 TIC scanning Entering the fire scene Initial object information Streaming heat Origin of fire Fire gas spreading Risk assessment Pressure difference Temperature difference Methodology step During intervention Changes Risk assessment Effect objectives Analysis Method and need Timescale method Resources-need Evaluate

30 1.Scanning frame 2.Scanning X-cross 3.Scanning painting Decision support with external thermal scanning FLIRFLIR

31 Scanning frame Size of the building type and construction. Type of roof construction/surface material Number of apartment level Streaming smoke and fire gas on top Heat finder on different side of building Fire behavior enclosure fires Looking needs to evacuate the building Scanning X-cross Size of the front building Doors and window Temperature on the surface Fire gas and smoke Streaming heat Number of apartment / Needs to evacuate Scanning painting Check details vent and ducts Start fire room Fire spread and heat stream Attack point cobra attack Pressure and ventilation places for PPV-fan

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38 Thank you!


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