BS EN 45510-6-6-2000
Leitfaden fuer die Beschaffung von Ausruestungen fuer Kraftwerke. Turbinenhilfseinrichtungen. Nass-und Nass/Trockenkuehltuerme Guide for Procurement of Power Station Equipment-Part 6-6:Turbine Auxiliaries-Wet and Wet/Dry Cooling Towers Guide pour l'acquisition d'equipements destines aux centrales de production d'electricite. Auxiliaires de turbine. Aerorefrigerants humides et humides/secs
适用范围：This standard gives guidance on writing the technical specification for the procurement of natural draught and mechanical draught wet and wet/dry (hybrid) cooling towers and cooling tower internals 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: - water distribution system; - spray assembly; - filling (film packing, splash grids or laths, etc.); - heat exchangers; - drift eliminator; - winter operating equipment; - fan and fan ancillaries; - noise attenuation equipment; - pipework and valves. This Guide does not cover: - condenser; - cooling water pumps and associated auxiliaries; - chemical and mechanical raw water treatment; - civil work. 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 such as condenser, cooling water supply and civil work; - predicted performance is achieved; - ancillary equipment is property 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.
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