Object

The program for lifetime extension up to 60 years at 104% nominal power capacity of Unit 5 of Kozloduy NPP calls for additional reinforcement against eventual seismic impact of the pipelines for emergency boron solution injection into the reactor pressure vessel. As a result, it is necessary to develop a detailed design for the replacement of hydraulic shock absorber 5TQ40JOI with a component with greater allowable load bearing (no less than 250kN).

Scope of the project

The scope of the project includes the development of a detailed design (in accordance with Bulgarian investment design legislation and applicable codes and standards), comprised of the following design parts:

• Structural;
• Machinery and Technology;
• I&C and automation;
• Fire Safety;
• Health and Safety Plan;
• Radiation Protection;
• Update of Safety Assessment Report.

Results

The design was developed, submitted and accepted by the Employer.