27.02.2008
E4 Group Proceeds Development of Unique Safety System at Chernobyl
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KIEP being a part of E4 group started to develop the barrier apt to retain radiation and contribute to further works of mitigation of consequences of Chernobyl accident.
The most critical stage of these works, in which participates OJSC “Kiev research and design institute “ENERGOPROJECT” being a part of OJSC “E4 Group” consists in development of a New Safe Confinement (NSC) over the existing protective cover.
The confinement is protective structure, which combines the complex of process equipment used for the removal from the forth power unit of the materials containing nuclear fuel, as well as other systems required for the activity with a view to reduce this facility to environmentally friendly safe system.
NSC is developed as protective structure of arched construction featuring unique performances: span of arched construction 257 meters, length 150 meters, height 108 meters. With due regard of complicated radiation conditions in the zone of the protective cover, the structure will be pre-assembled from individual ached sections off-site followed by structure “transposition” to the zone of the protective cover.
NSC structure is intended to provide staff, population and environment protection against the impact of nuclear and radiation hazards associated with the protective cover, and creates required preconditions for the practical activities with a view to rebuild the protective cover.
The constructed to be erected will ensure the safety in the event of extreme external and internal impacts, including tornadoes and hurricanes; therefore its life length at design basis operating period will last at least to 100 years. The Containment construction is to be finalized in 2012.
