PHT Drain & Dry, Cut & Cap, Moderator Drain & Dry

Crews will drain and dry the Moderator and Primary Heat Transport (PHT) systems. These are the last key milestones before the major component replacement begins. PHT Drain and Dry will be performed in parallel with the bulkheads installation. Moderator Drain and Dry will follow PHT drying and will overlap with..Read More

Bulkhead and shielding install

Protective shielding and 16 bulkheads are installed to isolate Unit 6 from the operating units. By installing the shielding, workers can remain in the vault when the Fueling Machine Trolley performs spent fuel runs, which generally occurs one time every 24 hour. Once the bulkheads are installed, vault pressure testing..Read More

Defuel

Defueling will take place in two phases. Workers begin with the “flow defuel” method for the first stage and then transition into using BRIMS, or the Bruce Reactor Inspection Maintenance System. This system enables shutdown of the heat transport pumps which are expensive to run. BRIMS will reduce the defuel..Read More

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