Cold tests, another important milestone in the Spent Nuclear Fuel Dry Storage Facility (ISF-2) construction project, has been completed. Their duration was almost four months, from May 6 to August 29.
Cold testing is a mandatory part of ISF-2 pre-commissioning test and consists of three main steps.
During the first stage the operability of the equipment of all major process systems and their ability to handle dummies of spent fuel assembly (hereinafter: SFAs) were tested. At the second stage of the test all auxiliary systems ensuring operation of the main ones were tested. The third stage of "cold" tests was aimed at identification of the maintainability of all ISF-2 equipment — whether its components and parts can be repaired remotely (without direct personnel involvement) in the case of their failure in the operating conditions of the facility.
All three stages of testing were supervised by a commission consisting of representatives from the Contractor, the Employer and the State Nuclear Regulatory Inspectorate of Ukraine.