BS EN 45510-2-2:1999

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
     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 Tests during installation and commissioning
     17.4 Technical conditions for trial run
     17.5 Functional and performance tests
Annex A (informative) Bibliography

Covers guidance on writing the technical specification for the procurement of static a.c. uninterruptible power supplies (UPSs) used in electricity generating stations (power stations). This procurement guide is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this guide.

This standard gives guidance on writing the technical specification for the procurement of static a.c. uninterruptible power supplies (UPSs) for use in electricity generating stations (power stations). This guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this guide.

This guide covers UPSs consisting of rectifiers, batteries, inverters, transfer switches and bypass switches.

This equipment usually forms part of either a centralised or unit UPS system for duties such as computer, control and instrumentation, etc., supplies. For additional, or specific, requirements for batteries and battery chargers refer to the relevant guides in this series.

The equipment covered by this guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This guide indicates to potential purchasers how their specification should be prepared so that:

• the equipment type and capacity interfaces correctly with other elements of the systems;

• predicted performance is achieved;

• ancillary equipment is properly sized;

• reliability, availability and safety requirements are achieved;

• proper consideration is given to the evaluation process and the quality measures to be applied.

This guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser\'s project strategy. It does not cover:

• any commercial, contractual or legal issues which are normally in separate parts of an enquiry;

• any allocation of responsibilities which are determined by the contract.

This guide does not prescribe the arrangement of the documents in the enquiry.

NOTE As a comprehensive European environmental policy is still under preparation, this guide does not address the environmental implications of the equipment.