ÖNORM EN 45510-4-1

This standard gives guidance on writing the technical specification for the procurement of dust emission reduct ion equip ment for use in elect~Myge nerating stations (power stations). Ths Guide for procurement is not applicable to ewpment for use in the nuclear reactor plant area of nuclear power stations. Other possible appl~bationso f such equipment have not been considered in the preparation of this Guide. This Guide Covers: - mechanical Separators; - bag filterst - electrostatic precipitators. The performance of dust collecting equipment depends on the physical and chemical properties of the flue gas and the particles in the flue gas. The choice of equipment is therefore dependent on these properties and the potlution regulations to be met. Wet removal systems are not normally used to extract the large quantities of dust in electricity generating stations because of difficulties in the disposal of the siudge, treatment of the waste water and lowering of the flue gas discharge temperature. If they are offered, the extent of supply should normally include waste water treatment plant and proposals for reheating the flue gas. The eguipment covered by this Guide is deflned by its function rather than design type. Therefore, the guidance to the specificgtion is stated in performance terms rather than being specified by a detailed descrl;otion of the equipment tu be supplied TItis Guide indicates to potential purchasers how theli specification should be prepared so that: - the equipment type and capacily intedaces correctly with other elements of the systems; - predcted per forrnance is achievea - reliabifity, availabifity and sa fety requirements are achieved; - proper consideratim is given to the evaluation process and the quality measures to be applied Thk Guide does not determine the type of specification (e,g. detailed, performance, functional) or the extent of supply for any given contract (...abbreviated)