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Atomka

A cache by Silvia&Juraj Send Message to Owner Message this owner
Hidden : 5/8/2007
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size: regular (regular)

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Geocache Description:


[SK]
Atomove elektrarne Bohunice (EBO) je komplex troch atomovych elektrarni (A-1, V-1 a V-2).
A-1 bola spustena 24. 10. 1972. Bola to prva atomova elektraren v byvalom Ceskoslovensku a jedina s experimentalnym tazkovodnym plynom chladenym jadrovym reaktorom KS-150 vyuzivajucim prirodny neobohateny uran. Projekt elektrarne mal vyskumny a vyvojovy charakter a preto elektraren trpela castymi havariami a neplanovanymi odstaveniami.
5. 1. 1976 bola vystrelena palivova kazeta z jedneho kanala reaktora pri vymene paliva pocas prevadzky. Personal s nasadenim zivota v plynovych maskach nastastie eliminoval poruchu utesnenim kanala zavazacim strojom. V opacnom pripade hrozila strata chladiaceho kyslicnika uhliciteho, roztavenie aktivnej zony reaktora a nekontrolovatelna reakcia. Dvaja pracovnici udrzby zahynuli udusenim, pretoze unikovy vychod bol uzamknuty kvoli castym kradeziam.
Najhorsia jadrova havaria v Ceskoslovensku sa stala 22. 2. 1977. Pocas vymeny paliva pri zasuvani cerstvej kazety do reaktora, v ktorej boli zabudnute zvysky chemickeho absorbatora vlhkosti. Po zasunuti doslo k znizenej priechodnosti plynu kazetou, k jej prehriatiu, roztaveniu a prepojeniu okruhov chladiaceho CO2 a tazkej vody. Pri nehode doslo ku kontaminacii primarneho a sekundarneho okruhu.
Havaria bola pred verejnostou utajena.
V dosledku tejto havarie bola jadrova elektraren A-1 uzavreta a od roku 1979 prebieha jej dekontaminacia a likvidacia.
Planovanie vystavby A-2 bola ukoncene a namiesto toho bola prijata vo svete najrozsirenejsia koncepcia tlakovodnych reaktorov a bol pouzity sovietsky projekt VVER 440 na vystavbu V-1 a neskor V-2.

EBO je pristupne z Jaslovskych Bohunic, ale ku cache sa dostanes od obce Nizna alebo Velke Kostolany - pozri doplnujuci waypoint.


[EN]
The Bohunice Nuclear Power Plants is a complex of three nuclear power plants (A-1, V-1 and V-2).
A-1 was opened on October 24, 1972. It was the first nuclear power plant in former Czechoslovakia and the one and only with experimental heavy water gas cooled nuclear reactor KS-150. Because of its experimental design the power plant suffered from accidents.
On January 5, 1976 two workers were killed due to leak of carbon dioxide used as a coolant.
On February 22, 1977, during fuel change, a combination of human mistake and design problem caused the worst nuclear accident in Czechoslovakia. Part of fuel rods was replaced while the reactor was active. Humidity absorber covering the rods was not removed causing local overheating of the fuel (transmission of heat to the coolant gas was reduced). The active zone was damaged, heavy water got in contact with the coolant and both primary and secondary circuits were contaminated.
The accidents were kept in secret.
The decomissioning, decontamination and dismanting the plant still continues...
Plan to build the second reactor block A-2 was cancelled. The world's most widespread concept of pressurized reactors was adopted and the Soviet-era design VVER-440 was used in constructing the nuclear power plants V-1 and V-2.

The power plant is accessible from "Jaslovske Bohunice". But the cache is accessible from other side from "Nizna" or "Velke Kostolany" - see additional waypoint.

Additional Hints (Decrypt)

[SK] Qhgl fgebz
[EN] Ubyybj gerr

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)



 

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