1. Main Requirements on Different Stages of the Licensing Process for New Nuclear Facilities Module 4.5/2 Design Geoff Vaughan University of Central Lancashire, UK Drafting School, Vienna, December 2012 - Module 4.5/2 1

2. IAEA Safety Standards Specific Safety Requirements Safety of Nuclear Power Plants: Design SSR-2/1 Drafting School, Vienna, December 2012 - Module 4.5/2 2

3. DESIGN OF SPECIFIC PLANT SYSTEMS The second part of SSR 2/1 (from requirement 43 to the end) deals with specific Structures, Systems and Components in the design of an NPP In this part the technology has be considered as some systems will not apply to some technologies There are many Safety Guides which deal with the specific systems but it is a task beyond this drafting school to go into detail: we will restrict ourselves to the Requirements Drafting School, Vienna, December 2012 - Module 4.5/2 3

4. DESIGN OF SPECIFIC PLANT SYSTEMS - 1 Reactor core and associated features Requirement 43: Performance of fuel elements and assemblies Requirement 44: Structural capability of the reactor core Requirement 45: Control of the reactor core Requirement 46: Reactor shutdown Reactor coolant systems Drafting School, Vienna, December 2012 - Module 4.5/1 4

5. DESIGN OF SPECIFIC PLANT SYSTEMS - 2 Reactor coolant systems Requirement 47: Design of reactor coolant systems Requirement 48: Overpressure protection of the reactor coolant pressure boundary Requirement 49: Inventory of reactor coolant Requirement 50: Cleanup of reactor coolant Requirement 51: Removal of residual heat from the reactor core Requirement 52: Emergency cooling of the reactor core Requirement 53: Heat transfer to an ultimate heat sink Drafting School, Vienna, December 2012 - Module 4.5/1 5

6. DESIGN OF SPECIFIC PLANT SYSTEMS - 3 Containment structure and containment system Requirement 54: Containment system for the reactor Requirement 55: Control of radioactive releases from the containment. Requirement 56: Isolation of the containment Requirement 57: Access to the containment Requirement 58: Control of containment conditions Drafting School, Vienna, December 2012 - Module 4.5/1 6

7. DESIGN OF SPECIFIC PLANT SYSTEMS - 4 Instrumentation and control systems Requirement 59: Provision of instrumentation Requirement 60: Control systems Requirement 61: Protection system Requirement 62: Reliability and testability of instrumentation and control systems Requirement 63: Use of computer based equipment in systems important to safety Requirement 64: Separation of protection systems and control systems Requirement 65: Control room Requirement 66: Supplementary control room. Requirement 67: Emergency control centre Drafting School, Vienna, December 2012 - Module 4.5/1 7

8. DESIGN OF SPECIFIC PLANT SYSTEMS - 5 Emergency power supply Requirement 68: Emergency power supply Supporting systems and auxiliary systems Requirement 69: Performance of supporting systems and auxiliary systems Requirement 70: Heat transport systems Requirement 71: Process sampling systems and post-accident sampling systems Requirement 72: Compressed air systems Requirement 73: Air conditioning systems and ventilation systems Requirement 74: Fire protection systems Requirement 75: Lighting systems Requirement 76: Overhead lifting equipment Drafting School, Vienna, December 2012 - Module 4.5/1 8

9. DESIGN OF SPECIFIC PLANT SYSTEMS - 6 Other power conversion systems Requirement 77: Steam supply system, feedwater system and turbine generators Treatment of radioactive effluents and radioactive waste Requirement 78: Systems for treatment and control of waste Requirement 79: Systems for treatment and control of effluents Drafting School, Vienna, December 2012 - Module 4.5/1 9

10. DESIGN OF SPECIFIC PLANT SYSTEMS - 7 Fuel handling and storage systems Requirement 80: Fuel handling and storage systems Radiation protection Requirement 81: Design for radiation protection Requirement 82: Means of radiation monitoring Drafting School, Vienna, December 2012 - Module 4.5/1 10

11. Regulations or Guides This large set of specific design requirements demonstrates one of the problems associated with producing Regulations and Guides: A lot of issues need consideration and decisions made on whether to produce Regulations or Guides Drafting School, Vienna, December 2012 - Module 4.5/2 11 It is suggested that consideration is given to what the complete set of Regulations and Guides will consist of, how easy to use they will be, and how easy to change as time progresses