NEN EN 45510-7-2 : 1999

Foreword
1 Scope
2 Normative references
3 Definitions
      3.1 Organizational terms
      3.2 Technical terms
      3.3 General terms
4 Brief overall project description
      4.1 Role and organization of purchaser
      4.2 Site location
      4.3 Equipment task
      4.4 Equipment to be purchased
      4.5 Control and instrumentation systems
      4.6 Electrical supplies and other services
      4.7 Other interfaces
      4.8 Project programme
      4.9 Equipment identification systems
5 Extent of supply
6 Terminal points
7 Operational requirements
      7.1 Operating environment
      7.2 Manning levels
      7.3 Normal operation
      7.4 Operating hours
      7.5 Start-up and shut-down
      7.6 Abnormal conditions
      7.7 Further operational requirements
8 Life expectancy
      8.1 Design life
      8.2 Components requiring periodic maintenance
9 Performance requirements
      9.1 Duty
      9.2 Performance
      9.3 Equipment margins
      9.4 Availability
      9.5 Levels of component redundancy
      9.6 Further performance requirements
10 Design and fabrication
      10.1 Specific equipment features
      10.2 Design justification
      10.3 Material selection
      10.4 Safety
      10.5 Interchangeability
      10.6 Fabrication methods
11 Maintenance requirements
      11.1 Planned maintenance
      11.2 Personnel safety
      11.3 Requirements for access
      11.4 Lifting requirements
      11.5 Special tools
      11.6 Test equipment
      11.7 Spare parts strategy
      11.8 Special precautions
12 Technical documentation requirements
      12.1 Tender documentation
      12.2 Contract documentation
13 Applicable legislation, regulations, standards and
      further requirements
      13.1 Legislation and regulations
      13.2 Standards
      13.3 Further requirements
14 Evaluation criteria
      14.1 General
      14.2 Technical criteria
15 Quality measures
      15.1 General
      15.2 Approvals procedure
      15.3 Inspection requirements
      15.4 Non-conformity
16 Site factors
      16.1 Access
      16.2 Facilities
      16.3 Site specific requirements
17 Verification of specified performance
      17.1 General
      17.2 Works tests
      17.3 Test during installation and commissioning
      17.4 Technical conditions for trial run
      17.5 Functional and performance tests
Bibliography

Provides advice on writing technical specification for procurement of boiler and high pressure piping valves, as well as safety valves for power stations. Does not cover equipment used in nuclear reactor plant areas of nuclear power stations. Deals with valves (including safety valves), for installing in boiler plants and high pressure piping systems. Also advises buyers how the specification should be prepared so that equipment type and capacity interfaces correctly with other elements of systems; performance is achieved; ancillary equipment is sized properly; reliability, availability and safety criteria is achieved and consideration is given to the evaluation process and quality measures to be applied.