Guide for procurement of power station equipment

BS EN 45510-2-2:1999 pdf free.Guide for procurement of power station equipment一 Part 2: Electrical equipment – Section 2: Uninterruptible power supplies.
This standard gives guidamce on writing the techmical 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 muclear reactor plant area of muclear pouver stations. Other possible apptications 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 tham desigm 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:
一the equipment type and capacity interfaces correctly with other elements of the systems;
一predicted performance is achieved;
一ancillary equipment is properly sized;
一reliability, availability and safety requirements are achieved;
一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:
一amy commercial, contractual or legal issues which are normally in separate poarts of an enquiry;
一any allocation of responsibilities which are determined by the contract.
This guide does not prescrribe the arrongement of the documents in the enquiry.
NOTE As a comprehensive European envirommental policy is still under preparation, this guide does not address the environmental implications of the equipment.
2 Normative references
This guide for procurement incorporates by dated or undated reference, provisions from other pubticatioms.
These normative references are cited in the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this guide only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies.
European Standards
EN ISO 8402, Quality management and quality assurance一Vocabulary.
EN ISO 9001, Quality systems一Model for quality assuromce in design, development, production,installation and servicing.
EN ISO 9002, Quality systems一Model for quality assurance in production, installation and servicing.
EN 45510, Guide for procurement of power station equipment
Part 2-7: Electrical equipment – Switchgear and controlgear;
Part 2-9: Electrical equipment一Cabling systems.
EN 50091, Uninterruptible power systems (UPS)一
Part 1-1: General and safety requirements for UPS used in operator access areas;
Part 2: EMC requirements.
EN 60529, Degrees of protection provided by enclosures (IP Code).(IEC 60529)
International standards IEC 60050 (191), International electrotechnical vocabulary
Chapter 191: Dependability and quality of services.
IEC 60050 (486), International Electrotechnical Vocabulary (IEV)
Chapter 486: Secondary cells and batteries.
IEC 60050 (551), International Electrotechnical Vocabulary (IEV)
Chapter 551: Power electronics.
3 Defnitions For the purposes of this guide, the followving definitions apply.
3.1 organizational terms
3.1.1 purchaser recipient of a product and/or a service provided by a supplier
3.1.2 supplier person or onganization that provides a product andor a servrice to the purchaser
3.1.3 specification document stating technical requirements of the purchaser. It may form part of an enquiry issued by a purchaser.
3.1.4 enquiry imvitation to tender issued by a purchaser. It will normally inctude a specification together with the necessary contractual and commercial conditions.BS EN 45510-2-2 pdf free download.Guide for procurement of power station equipment