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A containment building is a reinforced steel, concrete or lead structure enclosing a nuclear reactor. It is designed, in any emergency, to contain the escape of radioactive steam or gas to a maximum pressure in the range of 275 to 550 kPa (40 to 80 psi) [citation needed].
The New Safe Confinement (NSC or New Shelter; Ukrainian: Новий безпечний конфайнмент) is a structure put in place in 2016 to confine the remains of the number 4 reactor unit at the Chernobyl Nuclear Power Plant, in Ukraine, which was destroyed during the Chernobyl disaster in 1986.
A containment building is a building with a nuclear reactor in it. It is built around the reactor to keep the radiation from getting out, if something happens to the reactor. The containment building is the last barrier to the radiation getting into the environment.
A reactor protection system is designed to immediately terminate the nuclear reaction. By breaking the nuclear chain reaction, the source of heat is eliminated. Other systems can then be used to remove decay heat from the core. All nuclear plants have some form of reactor protection system.
The containment building is a gas-tight (shell) or other enclosure around a nuclear reactor and a primary circuit. The Containment is the most characteristic structure of a nuclear power plant. Practically all nuclear power plants built during the last few decades include a containment building.
The New Safe Confinement (NSC) is an immense steel arch designed to cover the damaged nuclear reactor and prevent further radioactive material leaking into the environment whilst the reactor structure is made safe. It is the worlds largest mobile metal structure.
Jan 3, 2013 · The building, which will rise from one of the most treacherous construction sites on Earth, will be 108m tall and 150m wide, have an arch span of 257 metres and will weigh 29,000 tonnes.
