1、 STD-BSI BS EN 45510-5-4-ENGL 1778 m lb24bb7 Ob78154 TT7 m BRITISH STANDARD Guide for procurement of power station equipment - Part 5-4: Hydraulic turbines, storage pumps and pump-turbines The European Standard EN 45510-541998 has the status of a British Standard ICs 23.080,27.100; 27.140 BS EN 455
2、10-5-4 1998 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 46610-6-4:1998 National foreword This British Standard is the English language version of EN 4551-541998. The UK participation in its Preparation was entrusted to Technid Committee W-DO, Power engineering steeri
3、ng committee, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related internationai and European developments and promu
4、lgate them in the UK. A list of organizaiions represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement internationaJ or European pubications referred to in this document may be found in the BSI Standards Catalogue under the sec
5、tion entitled “Intemaiional Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electsonic Catalogue. A British Standard does not purport to include a the necessary provisions of a conira 27.100; 27.140 Descriptors: Electric power stations, turbines, hydraulic equip
6、ment, pumps, purchase, user supplier relations, invitalion of tenders, specincations, ehcnical writing En$zish version Guide for procurement of power station equipment - Part 5.4: Hydraulic turbines, storage pumps and pumpturbine Guide pour l?acquisition d?equipements destins aux centrales de produc
7、tion d?lectricit - Partie 54: lrbjnes hydrauliques, pompes d?accumWon, turbinepompes Pumptmbinen Leitfaden fr die Bes it should, therefore, be read in addition and complementary to the International Standard. The equipment covered by this Guide is defined by its function rather than design type. The
8、refore, the guidance to the specwcation is stated in per$omnce terms mthm than being spdfied by a detaed description of the equipment to be supplied. This Guide indicates to potmticrl purchasers how their spec!cation shoud be prepared so that: - the equipment type and capacity interfiaces correctly
9、with other hents of the systems; - predicted pe?fomnce is achieved; - anculary equipment is properly size - proper considemtion is given to the wdmtion pmcess and the quality measures to be applied. speclf2.caton (e.g. detuad, pMomnce, functional) or the mtent of supply for any given contract which
10、is normdly o!akied on the basis of the purchaser% project stmtegy. It does not cover: mis Guide does not determine the type of - any commercial, contractual or legal issues which are rwWy in separate parts of an enquiry; - any it my form part of an enquiry issued by a purchaser 3.1.4 enquiry invitat
11、ion to tender issued by apurchaser; it WU normally include a specification together with the necessary contmctual and commercial conditions 3.1.6 tender 08er made by a tenderer in response to an enquiry 3.1.6 tenderer pmon or organization submitting a tender for the equipment in response to the enqu
12、iry 3.1.7 site place to which the equipment is to be delivere or where work is to be done by the supplier, together with so much of the area surrounding as the supplier may, with the consent of the purchaser, use for the purposes of the wntmct NOTE Further for example buckets and needies of Pelton t
13、urbines or runner blades and guide vanes of other types of hydradic machines are sigtufwt components 3.3.6 design life operating hours of the equipment on which esign calculations are based 3.3.7 accepta bilitg compliance with criteria defined by the purchaser for assessing the suitability of equipm
14、ent 3.3.8 equipment margins aurnOance for design, fabrication or operating contingency definecl in the specification; these are sepamte to those rwmuLy included by the supplier for his own purposes 3.3.9 proven equipment equipment which may be demonstmte to be similar to that o$red and has operated
15、for a suffzcient time to have dem0nstmte. peomnce and avaWity 3.3.10 availability as defined in LEC 50 (191) 3.3.11 re1 iaai1 i as - geological e.g. samn.ic conditions and chmteristh of subsoil (e.g. cam, gliding stratifications, load bearing capability of subsoils); - geogmphic e.g. elewLtion, iuen
16、ce of local topography and structures; - hydrobgical e.g. jlooding and tides, range of water temperature, water quality analysis (chemical, corrosive, biological, suspended solids). 4.3 Eqiripment task The specwcation shmid de-scrbe in geneml terms thefunctzOn, task or role of the equipment to be pu
17、rchased, e.g. whether it is part of a new power generating plant, a modification to an existing power generating plant or replacement equipment. where appmprite, the specwcation should define the function and the hmmm limitations, if any, in the equipment conmted to that which is being supplied so t
18、hat the equipment may awid imposing adverse conditions or the supplier may suggest md?cations to conmted equipment which would ensure satisfmtmy operation. 4.4 Equipment to be purchased The specwcation may - machine characteristics; - prefened anangement, e.g. vertical or horizontal shaft; - preferr
19、ed bearing arrangement; - preferred speed; - preferred reference level of the machine. The specification should give a description of the hydraulic scheme (dams, reservoits, conduits, etc.) and a description of the hydrauic circuit (intake, gallery, surge tank, penstock, gates and valves and tailrac
20、e). The specmation may also these should be to a recognized European or international staruhn. The specification should define the type and capaciw of other services for the operation of the equipment, such as compressed air. 4.7 Other interfaces Z5.e specification should define the inteaces with ex
21、isting anchry or new aW?y equipment to be supplied under separate contracts which interact directly with the equipment. For example, civil works, cranage or temporary systems. 4.8 Project programme The specmation should describe Uze overall programme and timescale in which the pjmt is to be camied o
22、ut. !Chis my include Uze principal dates assocated with tenderng, placement of OTdmS, access to site, start and cmpktion of installation, pre-start tests, cmmissioning, tuk.e-over and find acceptance. 4.9 Equipment identification systems The specification may stionui system should be used. O BSI 199
23、8 STD-BSI BS EN q5510-5-4-ENGL 1998 I 1bZqbb9 b981b2 O75 I I l Page 7 EN 46510-641998 * m * 6 Extent of supplg The specification should define the extent of supply of a the equipment. This may include: main plant equipment aLuriliary equipment accessories: spare parts: site activities tests: documen
24、tation: rotors, casings, bearings and supports, gem (if applicable), control system, safety system; cooling and lubricating system, machine stating equipment; handling and maintenance system, special tools, e.g. shaft end drilling gauge; runner, blades, guide vanes, bearings, labyrinth seals, shaft
25、seals, trcuisport, storage, installhon; model tests, commissioning, test service period, and performance -; plant details, operation and maintenance. If the purchaser wishes to have a contmct for control and instrumentation separate from the equipment supply contmct, the specification may require th
26、e supplier to provide informution on a the necessary inter$aces (e.g. all instrumentation tapping points and instruments provided within the extent of supply). In - obligations e.g. operational staff shifl patterns; - restrictions e.g. process waste disposal. O BSI 1998 STD-BSI BS EN 45510-5-4-ENGL
27、1978 1b24bb9 Ob98Lb3 TO1 D Page 8 EN 46610641998 7.2 Manning levels The specscation should - efficiency; - maximum momentary overspeed; - maximdminimum momentary pressure; - maximum steady state mway speed, - maximum zerodischarge specific hydraulic energy and zerodischarge power in case of pump ope
28、ration; - cavitation pitting; - noise; - vibration. operating condicions. - hydraulic thrust; 9.2 Performance The spececation may define the operating points and other defined conditions at which the equipment performance requirements are to be demonstrated immediately after commissioning ador at ot
29、her points in the lqe of the equipment. O BSI 1998 STD.BSI BS EN 455L-5-4-ENGL 1778 Lb2Libb7 Ob78Lbq 748 Page 9 EN 45510-64.1998 Performance tests (model acceptance tests or field acceptance tests), should be interpreted according to rules given in IEC 41 andor IEC 193. NOTE Performance tests are so
30、metimes conducted off site ami may be carried out at conditions dwerat from the operating point. The results may require scaling according to agreed rules. 9.3 Equipment margins The specification should d.entvy require equipment margins by accurately indicating the operating field of the hycraulic m
31、achine. These margins may also comprise deviations from specified data andor manufacturing tolerances. The purchaser should also indicate how the margins wiii be used in the economic evaluation to allow the supplier to optnize turbine selection. 9.4 Availability The specification may specvy availabi
32、lity requimts. In order to demonstrate confomity with thme requirements, the specification may request the supplier to use data on availability, reliability and maintainability to cam out an analysis to show that the target availability wid be met. Detaimum distance of any point on th platform to st
33、airs, the requirement for landings on the stairs, any, and whther it is permissible for platforms to be closed at one end. Requirements for platform with, load camying capacity, handraa, etc. should be stated. Where possible, these requimts should comply to European or intemationa standad. 11.4 Lwin
34、g requirements The specification should define in the extent of supply (see clause 5) whether permanent lifiing dankes are to be nstaued and where mobile cram, fork lift trucks etc. are permitted for some operations. The specification should define whether the permunent equipment should be prowded b
35、y the supplier and, if not, the informution mchunge required for its design and installation. AU items liice to be required to be removed for maintenance should be provided with appro2rriate lifiing points O BSI 1998 STD.BSI BS EN 455LO-5-q-ENGL 1778 W 1bZqbb9 Ob78Lbb 710 Page 11 EN 45610-641998 11.
36、6 Special took The specification should request the supplier to identi,fy where special took are required fi operation and mintenume and to mom - auOw evaluation by thepurchaser. -facilitate system studies; This information may include design parameters, drawings, schedules, schematic funct.ionuL an
37、d instrmmentatwn diagrams, type test certifwation and refie instauations. 12.2 Contract documentation The specmeation should define a list of documents to be 1yrovided by the supplier. This should include a definition of when m at what stage ule documents should be made avaabie. In particuhc the sup
38、plier should 1yrovide aU drawings giwing infomtion on intqfaces and terminal points. The specification my request geneml layout drawings, detailed amngmt drawings and assembly dmwings, if necessary for functional clearance inspection. The specification my request supporing infomuttion regarding the
39、construction pmgrarnme, major dw works, design submissions, design studies, construction studies, reliabity studies, test procedures, commissioning procedures, operating and maintenance instructions and quuiity control informution, as detailed in annex B. The specification may specify the genm layou
40、t of aU documents to be tramitted or made avaobie and provide specific schedules for completion by the Supplier. The specification should - running costs; - cost-eflectiveness; - quality; - aesthetic and functional chamcterLstzcS; - technical merit; - -s - smrity of supplies; - prce. 14.2 Ilichnical
41、 criteria The enquiry should define ULe method of imrpomtion of the fouowing factors, where appropriate, in the eucuution. 14.2.1 Quality Availability, reliability and maintainability are a measure of total quality and thepurchaser may - - components and systems which have to be operable for commiss
42、ioning of other plant; - definition of the commissioning process and the necessary documentation required. 17 Verification of speckpeormunce 17.1 General Tests wl, in general, be require on the equipment at various stages of the contract to verify its performance. The specification should define the
43、 tests required and their conditions and organization. This may include definition of the pmvision of site services, personnel, etc. 17.2 Works tests Tests during manufacture may inclz.de type tests, speciuL tests and routine tests. Test requirements are idente in the refie standards, where these ex
44、ist, with special tests being carried out ony when requimd by the specification. The specmation should define the tests to be caW out during the munuJturing pmms for the vhfication of performance and the supplier should give adequate notice to icieqq ador target availability and/or target total abso
45、rbed power and usage of consumables. The nature adfreqmwq of testing to applicable, SM be - instruction for maintenance; - records (minutes); - spare part lists. The documentation should meet the following requirements - cleax, unequivocal, unmistakab le and complete information for operation and ma
46、intenance of the delivered equipment; - information about risks, - consideration of standards for compilation of documents (e.g. intedonal standasds for drawings, IS0 128, IS0 3098 and Is0 7200 (see annex A); - the structure of the technid documentation should be based on these ISO/IEC Standards. Th
47、e ISOAEC Standards should be precised by national or suppliers documentation standardq - the documentation guide lines should also be used as guidance for sub-suppliem; - the requirements of electronic data exchange between supplier and customer should be considered, for example, application of the
48、interfaces or the possibility of data transmission by dp-codes (e.g. ASCkode) to other dp-systems should be considered; - ultimately the documentation provided should comply with the legal and contractual obligaions. O BSI 1998 STDmBSI BS EN 45510-5-4-ENGL 1998 lbZLibb7 Ob78171 O88 = BS EN 455 10-5-
49、41998 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for prepasing British Standards. It presents the UK view on standards in Europe and at the international leveL It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quaiity of our products and serv
