Chernobyl NPP - short history

In the end of 60-th years the soviet government decided that Polesye area, which got into Gines's book of record as the largest peatbog in Europe, is the best for building of the first ukrainian nuclear pover plant . The dencity of poulation at that moment was 24 people per square kilometre.

Soviet Union loved a great scale very much, perhaps that's the reason that by primary project ChNPP had to be the largest NPP in the world. It must cosisted of 6 RBMK units (1000 MV) and 6 WWR units (1500 MV). Town of Pripyat was planned aspecially for builders and ChNPP's workers and it was envisaged that from 100.000 to 200.000 of people would live there.

Thus in 1970 the first cobble-stones were laid for ChNPP and Pripyat and in 1977 Unit 1 started to work. In 1978 Unit 2 was started up and in1983 and 1984 Unit 3 and Unit 4 joined it. In 1981at 15 kilometres from plant the construction of Unit 5 and 6 was begun, and along the bank of Pripyat-river the 21,4 km cooling pool was build for Units 1-4 (huge sheat-fishes swim there now and it's a peculiar sights of Chernobyl)

At the 26-th of April "the War" was. There is not ununimity about reasons of accident till now but the most widespread idea talks about hydrogen explosion. (I hope I'll add some information about it, but later).

In accident moment Reactor ¹4 was loaded completelly, it means that there were near 180 tons of fuel inside it. The lead of reactor (its weight is nearly 3.000 tons) was got away, the roof was destroied absolutely, north and west walls was rased almost utterly. The rough estimation says that from 30 to 100 tons of former nuclear fuel was scattered on the site. The level of radiation near destroyed unit was more then thousand RAM per hour (for example: norm is 5 RAM per year).

Nearly 49.000 people lived in Pripyat on 26.04.1986. The construction of Unit 5 and 6 was finished for 80 %. But after the accident building was frozen and people were evacuated and ... for ever.

After the explosion two seathing torrents arised: a part of people went away as fast as they can (and it's understandable); and he other part drived to the way back (and it's more intricate). The Soviet Union, despite his minuses, bring up people to be heroic and self-sacrifice for their Fatherland. That's why the torrent of people who rushed to accident place devided by some streams too. It were and simply heroes-selftaught of all professions and high skilled specialists which were sent to liquidate the explosion after-effects and various adventurers-experimenters who rushed to ChNPP or for money or for stylish today "extreme" . All of these gentlemen were united by one thing: they were undoubtedly unordinary persons (and it's very wonderful because of exactly this reason Slavutich is so non-typical and interesting now).

800 thouthands of "small insect" serected a saving shelter "Sarkophagas" under the destroied reactor and liquidated explosion sequels. One of the rughest mistakes was estinquishing of fire by WATER! The steams which were saturated by radiation rose up and 26 firemen were died from radioactive irradiation in a very short period. Later on fire was estinquished by sand and some other rubbish which were come to hand, from helicopters. Liquidators run to Sarkophagas, 5 minutes did some work and they catched a "doze" for all further life.

On 30-th of November 1986 object "Shelter" was put into operation.

After "shovelling" of Unit 4, began to put other units into operation. Thus in October and November 1986 the turbines of Unit 1 and 2 was set in motion and in Decenber third Unit's turbine run.

But, alas, its operated not long time. In October 1991 a fire happened on turbine of Unit 2. In this way Reactor 2 was "hanged up" to pending conditions. It stayed on this state till 2000 (never work, I mean). In December 1995 "Mutual Understending Memorandum" with G7 was signed, Ukrainian President promised to "close" ChNPP and he partialy did it in 1996 when Unit 1 was stopped. And the grandiose show was made from Unit 3 decomissioning. All World could see that 15.12.2000 on TV.

The RBMK-reactor comissioning period is 30 years and there is a good practice in whole world to modernize an equipment for prolongation of the operating time for 10-15 years. In that way each ChNPP's unit (without Unit 4, of course) principally could work and work yet.

One operating reactor "fed" a liitle town like Kiev (with 4 millions of people, metro, buses, plants, etc) by electrisity . Now State Specilized Enterprize "Chernobyl NPP" produces zero MV of energy. That's why it lies like the heaviest social and financial burden on shoulders of State. But let's talk about sad on PPP-channel...

Copyright © Medved Vitaliy, doddy1@narod.ru






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