Chernobyl Exclusion Zone Chernobyl Exclusion Zone The Chernobyl Nuclear Power Plant Zone of Alienation (, ) is an officially designated exclusion zone around the site of the Chernobyl nuclear reactor disaster. It is also commonly known as the Chernobyl Exclusion Zone, the 30 Kilometre Zone, or simply The Zone (, ). Established by the Soviet Armed Forces soon after the 1986 disaster, it initially existed as an area of radius from the Chernobyl Nuclear Power Plant designated for evacuation and placed under military control. Its borders have since been altered to cover a larger area of Ukraine. The Chernobyl Exclusion Zone borders a
Chernobyl Nuclear Power Plant was equipped with both types of turbines; Block 4 had the newer ones. The newer turbines, however, turned out to be more sensitive to their operating parameters, and their bearings had frequent problems with vibrations. Four RBMK reactors were at Chernobyl Nuclear Power Plant, Ns. 1–4. The construction of two partially completed reactors, numbers 5 and 6, was suspended immediately after the accident at reactor N. 4, and was eventually cancelled in 1989. Reactors 1-3 continued to operate after the disaster. Reactor N. 2 was permanently shut down in 1991 after a fire broke out due to a faulty switch