SEARCH MENU INES scale The INES (International Nuclear Event Scale) has been developed by the United Nations International Atomic Energy Agency (IAEA), where incidents at nuclear power plants can be classified according to severity. In this way, the public and the media can get a quick and understandable explanation of how serious an event is. Classification of events The safety significance is classified on a scale from 1-7. The INES scale is used internationally and is a complement to the reporting system used between the nuclear facilities and the authorities. INES 7 Chernobyl 1986. The accident at reactor 4 at the Chernobyl nuclear power plant in present-day Ukraine had far-reaching effects on the environment and human health. Fukushima 2011. A strong earthquake with subsequent tsunami caused reactor failures in Japan, with radioactive discharges as a consequence. INES 5 Windscale 1957. The accident at an air-cooled graphite reactor in what is now Sellafield in England caused radioactive discharges into the atmosphere. Three Mile Island in 1979. The accident at the US nuclear power plant caused severe damage to the reactor core. The radioactive release outside the facility was very limited. INES 4 Saint Laurent 1980. The accident at the nuclear power plant in France caused part of the reactor core to be damaged, no external radioactive release occurred. Tokaimura 1999. The accident at the combined reprocessing plant and the Tokaimura fuel plant in Japan led to limited external radioactive releases. INES 3 Vandellos 1989. Händelsen i kärnkraftverket Vandellos i Spanien gav inte något yttre utsläpp av radioaktivitet och inte heller någon skada på reaktorhärden eller kontaminering i anläggningen. INES 2 Forsmark 2006. En kortslutning i ett ställverk på Forsmark 1 orsakade störning i elförsörjningen. Endast två av fyra reservkraftsaggregat startade. Inga utsläpp förekom. Sidan granskad den 26 juli 2017 Relaterad info IAEA Myndighetsrapportering Tjernobyl Fukushima NUVARANDE PRODUKTION 2017-09-10 00:19 0 492 MW 0 492 O1 0 661 MW 0 661 O2 0 1450 MW 0 1450 O3 OM VÅR PRODUKTION OKG och de andra kärnkraftverken står själva för kostnaderna för omhändertagandet av allt radioaktivt avfall som uppstår. OKG Aktiebolag Simpevarp 200 572 83 Oskarshamn Org nr: 556063-3728 0491-78 60 00 info@okg.uniper.energy Kontakta Press We use cookies to make the website work in a good way for you. By continuing to browse, you agree that we use cookies. What are cookies? I understand