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Dome Lifting of unit 4 at Tianwan NPP
time2015-11-25  fromHXCC  Viewed2383 times

   

    The dome of the reactor building of unit 4 at Tianwan NPP began to lift at 6:56 on the 24th of September. The placement at 8:56 marks the project enters into mechanical and electrical installation phase 26 days in advance. The dome lifting took less than two hours, with the whole process being carried out in control and safely.

    The dome of unit 4 was 44 meters in diameter, 22 meters high with weight of approximately 258 tons. The spraying pipeline, cable and air conduit installed inside the dome weigh about 87 tons. The structure weighs about 345 tons, four tons heavier than that of the unit 3 and it is the world’s largest and heaviest thin shell steel dome.

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