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Video Transcript: Chernobyl Plant Design

[Time Stamp: 00:00] These reactors are of the type unique to the Soviet Union.

[Time Stamp: 00:05] They are graphite moderated and are cooled by boiling water.

[Time Stamp: 00:11] The top of the vault is a 1000 ton head.

[Time Stamp: 00:15] This supports the control rods, the top of the pressure tube and the outlet steam pipes.

[Time Stamp: 00:23] The steam flows to a steam separator.

[Time Stamp: 00:27] The steam goes to the turbine, the water to the main coolant pumps, then to the inlet headers and then into the core where it boils to produce steam.

[Time Stamp: 00:39] The core is located in the vault, designed to contain about 12 pounds per square inch.

[Time Stamp: 00:46] The pressure that would result from the failure of one fueled pressure tube.

[Time Stamp: 00:53] There were 1661 such tubes.

[Time Stamp: 00:58] The area over the head is an industrial type, high bay building.

[Time Stamp: 01:04] People can work on the head while the reactor is operating.

[Time Stamp: 01:08] The reactor is refueled during operation.