Flashover
The flashover describes the fire spread in buildings within the building. Fire protection measures such as fire walls or fire compartments are intended to prevent this type of fire from spreading. A flashover usually takes place horizontally.
causes
The spread of fire, favored by structural defects, is difficult to prevent during fire fighting. One of the most common causes of a flashover are open building walls, which are caused by broken windows and balcony doors or open fire doors. A flashover is also favored by defective fire protection walls as well as unapproved extensions and modifications.
During the fire fighting , a flashover can also occur due to tactical errors on the part of the operations management and the emergency services. Choosing the wrong extinguishing agent with violent chemical reactions in the seat of the fire or opening doors or windows is a problem in combating the spread of the fire. This favors fire bridges that enable the fire to spread from one building to another. If z. For example, if the flames hitting from a window cause the windows above to burst, it is likely that a fire will also penetrate this floor and set it on fire. If the distance between buildings is too small, the heat radiation of the fire can cause the fire to flash over to other buildings, in the case of narrow streets even to the other side of the street, especially in the case of generously glazed facades.
See also
Individual evidence
Web links
- Fire spread through flashover on the facade (accessed on March 19, 2020)
- Fire walls and openings in fire walls. (accessed on March 19, 2020)
- Fire protection designs for HBauO (-BTA-) (accessed on March 19, 2020)
- Fire spread through the facade (accessed on March 19, 2020)
- Guide to engineering methods for fire protection (accessed on March 19, 2020)