They are equipped with air supply and filtering systems for safe breathing inside, and an overpressure is created inside that serves as a barrier to prevent contaminated air from entering the shelter through small openings in the walls of the structure. It can also have anti-vandalism attributes, shielding, secret entrance or camouflage, emergency exit, which allow the infrastructure to be used for threats related to high insecurity.įALLOUT SHELTER (Type F): It is a shelter that protects against chemical and biological attacks, radioactive fallout from distant nuclear explosions, radiological accidents (e.g. It can withstand the detonation of a nuclear bomb similar to those dropped on Hiroshima and Nagasaki from as close as 1,000 meters away. CBRNE shelters are equipped with air supply and filtering systems imported from Switzerland or Israel to breathe safely inside, and an overpressure is created inside that serves as a barrier to prevent contaminated air from entering the shelter through small openings in the walls of the structure. This type of shelter is airtight to create a toxic-free zone inside. Their design is based on Swiss standards, and they are classified in 2 types, CBRNE SHELTER (Type E) and FALLOUT SHELTER (Type F).ĬBRNE SHELTER (Type E): Designed and armored to withstand explosions from conventional ordnance to near and far nuclear explosions, it withstands pressures from 1 to 3 bar. In regular conditions, the upper concrete slab is 0.60 to 1.20 m deep from the ground surface, reaching construction depths of up to 4.50 m.
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