Chernobyl: 35 years after nuclear power plant disaster | WHAT REALLY HAPPENED

Chernobyl: 35 years after nuclear power plant disaster

April 26, 2021 marks 35 years since the Chernobyl nuclear power plant disaster (near the town of Pripyat, the Kiev Region of the Ukrainian Soviet Socialist Republic). It went down in history as the worst-ever nuclear power plant catastrophe.

In the early hours of April 26, 1986, the Chernobyl nuclear power plant’s fourth reactor was used for an experiment, in which the reactor’s emergency cooling system was turned off intentionally. The Unit 4 reactor was to be shut down for routine maintenance on 25 April, 1986. It was decided to take advantage of this shutdown to determine whether, in the event of a loss of station power, the slowing turbine could provide enough electrical power to operate the main core cooling water circulating pumps, until the diesel emergency power supply became operative. The aim of this test was to determine whether cooling of the core could continue to be ensured in the event of a loss of power. The attempt to shut the reactor down safely failed. At 01:23 Moscow time the reactor exploded, causing a fire. The emergency was the worst-ever disaster in the nuclear power industry: the reactor’s core was totally destroyed, part of the building collapsed and a heavy discharge of radioactive materials into the environment followed.

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