http://familytv.over-blog.com/2019/05/chernobyl-season-1-episode-5.html
The Chernobyl disaster (Ukrainian: Чорнобильська катастрофа) was a catastrophic nuclear accident that occurred on 26 April 1986, in the No. 4 nuclear reactor at the Chernobyl Nuclear Power Plant, near the city of Pripyat, in the north of the Ukrainian SSR.[1] The accident occurred during a late-night safety test simulating a power outage, during which both emergency safety and power-regulating systems were intentionally disabled.[2] A combination of inherent reactor design flaws and reactor operators arranging the core in a manner contrary to the checklist for the test resulted in uncontrolled reaction conditions. Superheated water was instantly turned into steam causing a destructive steam explosion and a subsequent open-air graphite fire.[note 1]
The Chernobyl disaster (Ukrainian: Чорнобильська катастрофа) was a catastrophic nuclear accident that occurred on 26 April 1986, in the No. 4 nuclear reactor at the Chernobyl Nuclear Power Plant, near the city of Pripyat, in the north of the Ukrainian SSR.[1] The accident occurred during a late-night safety test simulating a power outage, during which both emergency safety and power-regulating systems were intentionally disabled.[2] A combination of inherent reactor design flaws and reactor operators arranging the core in a manner contrary to the checklist for the test resulted in uncontrolled reaction conditions. Superheated water was instantly turned into steam causing a destructive steam explosion and a subsequent open-air graphite fire.[note 1]
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