1、BRITISH STANDARD BS IEC 61366-6:1998 Hydraulic turbines, storage pumps and pump-turbines Tendering Documents Part 6: Guidelines for technical specifications for pump-turbines ICS 27.140BSIEC61366-6:1998 This British Standard, having been prepared under the directionof the Engineering SectorBoard, wa
2、s published underthe authority of the Standards Board and comes into effect on 15 September1998 BSI 05-1999 ISBN 0 580 30320 9 National foreword This British Standard reproduces verbatim IEC61366-6:1998 and implements it as the UK national standard. The UK participation in its preparation was entrus
3、ted to Technical Committee MCE/15, Hydraulic turbines, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related
4、international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered
5、as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BS
6、I Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are respon
7、sible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi toiv, theIEC title page, pageii, pages 1 to19 and a back cover. This standard has b
8、een updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSIEC61366-6:1998 BSI 05-1999 i Contents Page National foreword Inside front cover 0 Introduct
9、ion to technical specifications 1 1 Scope 2 2 Reference documents 2 3 Technical requirements 2 3.1 Scope of work 2 3.2 Limits of the contract 3 3.3 Supply by Employer 4 3.4 Design conditions 4 3.5 Technical performance and other guarantees 7 3.6 Mechanical design criteria 9 3.7 Design documentation
10、10 3.8 Materials and construction 10 3.9 Shop inspection and testing 11 4 Technical specifications for fixed/embedded components 12 4.1 Spiral case 12 4.2 Stay ring 13 4.3 Foundation ring 13 4.4 Draft tube and draft tube liner 13 4.5 Pit liner 14 5 Technical specifications for stationary/removable c
11、omponents 14 5.1 Headcover and bottom ring 14 5.2 Guide vanes 14 6 Technical specifications for guide vane regulating apparatus 14 6.1 Servomotors 14 6.2 Connecting rods 15 6.3 Regulating ring 15 6.4 Guide vane linkage 15 6.5 Guide vane overload protection 15 6.6 Locking devices 15 6.7 Synchronizing
12、 device (optional) 15 7 Technical specifications for rotating parts, bearings and seals 15 7.1 Runner 15 7.2 Main shaft 15 7.3 Pump-turbine guide bearing 16 7.4 Main shaft seal 16 7.5 Standstill (maintenance) seal 16 8 Technical specifications for thrust bearing 16 8.1 Design data 16 8.2 Bearing sup
13、port 16 8.3 Bearing assembly 16 8.4 Oil injection pressure lift system 16 9 Technical specifications for miscellaneous components 16 9.1 Walkways, access platforms and stairs 16 9.2 Lifting fixtures 17 9.3 Special tools 17 9.4 Standard tools 17BSIEC61366-6:1998 ii BSI 05-1999 Page 9.5 Pump-turbine p
14、it hoist 17 9.6 Nameplate 17 10 Technical specifications for auxiliary systems 17 10.1 Bearing lubrication system 17 10.2 Runner pressure balancing and pressure relief limes 17 10.3 Pump-turbine pit drainage 17 10.4 Lubrication of guide vane regulating system 17 10.5 Draft tube air admission system
15、17 10.6 Tailwater depression system (if applicable) 17 11 Technical specifications for instrumentation 17 11.1 Controls 17 11.2 Indication 17 11.3 Protection 17 12 Spare parts 18 13 Model acceptance tests 18 14 Site installation and commissioning tests 18 14.1 General 18 14.2 Installation procedures
16、 19 14.3 Tests during installation 19 14.4 Commissioning tests 19 15 Field acceptance tests 19 15.1 Scope and reports 19 15.2 Inspection of cavitating pitting 19 Table 1 Summary of guide for the preparation of Tendering Documents for hydraulic turbines, storage pumps and pump-turbines iiiBS IEC 6136
17、6-6:1998 BSI 05-1999 iii Table 1 Summary of guide for the preparation of Tendering Documents for hydraulic turbines, storage pumps and pump-turbines Contents of guide IEC 61366-1 to IEC 61366-7 Sample table of contents of tendering documents (TD) (Example for the francis turbines; see61366-1, Annex
18、A) Part Clause Title Chapter Title 1 1 1 1 1 1 1 1 1 2 3 4 5 6 General and annexes Object and scope of this guide Reference documents and definitions Arrangement of Tendering Documents Guidelines for tendering requirements Guidelines for project information Guidelines for general conditions, special
19、 conditions and general requirements 1 2 3 4 5 6 6.1 6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.1.6 6.1.7 6.1.8 6.1.9 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 Tendering requirements Project information General conditions Special conditions General requirements Technical specifications Technical requ
20、irements Scope of work Limits of the contract Supply by Employer Design conditions Performance and other guarantees Mechanical design criteria Design documentation Materials and construction Shop inspection and testing Technical specifications for fixed/embedded components Technical specifications f
21、or stationary/removable components Technical specifications for guide vane regulating apparatus Technical specifications for rotating parts, bearings and seals Technical specifications for thrust bearings Technical specifications for miscellaneous components Technical specifications for auxiliary sy
22、stems Technical specifications for instrumentation Spare parts Model tests Installation and commissioning Field acceptance tests 1 Annexes A B C D E F G H Sample table of contents of Tendering Documents for Francis turbines Comments on factors for evaluation of tenders Check list for tender form Exa
23、mples of technical data sheets Technical performance guarantees Example of cavitation pitting guarantees Check list for model test specifications Sand erosion considerations 2 to 7 Technical specifications 2 3 4 5 6 7 Francis turbines Pelton turbines Kaplan and propeller turbines Tubular turbines Pu
24、mp-turbines Storage pumpsiv blankii blankBSIEC61366-6:1998 BSI 05-1999 1 0 Introduction to technical specifications The main purpose of the technical specifications is to describe the specific technical requirements for the hydraulic machine for which the Tendering Documents (TD) are being issued. T
25、o achieve clarity and to avoid confusion in contract administration, the Employer should not specify anything in the technical specifications which is of importance only to the preparation of the tender. Such information and instructions should be given only in the instructions to Tenderers (ITT). A
26、ccordingly, the ITT may refer to other chapters and sections of the Tendering Documents but not vice versa. As a general rule the word “Tenderer” should be confined in use only to TD chapter1 “Tendering requirements”; elsewhere the term “Contractor” should be used. Special attention should be given
27、to items of a project specific nature such as materials, protective coating systems, mechanical piping systems, electrical systems and instrumentation. It is common for the Employer to use technical standards for such items which would apply to all contracts for a particular project or projects. In
28、this event, detailed technical standards should be specified in TD chapter5 “General requirements”. Technical specifications for the various types of hydraulic machines included in this guide are provided in the following parts. Francis turbines (Part2); Pelton turbines (Part3); Kaplan and propeller
29、 turbines (Part4); Tubular turbines (Part5); Pump-turbines (Part6); Storage pumps (Part7). The guidelines for preparation of pump-turbine specifications include technical specifications for the following: Design conditions: Project arrangement, hydraulic conditions, specified conditions, modes of op
30、eration conditions, generator characteristics, motor characteristics, synchronous condenser characteristics, speed-up procedure for pump mode, transient behaviour data, change-over times and characteristics, stability of the system, noise, vibration, pressure fluctuations and safety requirements. Te
31、chnical performance and other guarantees: power discharge specific hydraulic energy (head) efficiency maximum momentary pressure minimum momentary pressure maximum momentary overspeed maximum steady-state runaway speed cavitation pitting hydraulic thrust change-over times maximum weights and dimensi
32、ons for transportation, erection and maintenance Mechanical design criteria: design standards, stresses and deflections and special design considerations (earthquake acceleration, etc.). Design documentation: Contractors input needed for the Employers design, Contractors drawings and data, Contracto
33、rs review of the Employers design and technical reports by the Contractor. Materials and construction: material selection and standards, quality assurance procedures, shop methods, corrosion protection and painting. Shop inspection and testing: general requirements and reports, material tests and ce
34、rtificates, dimensional checks, shop assembly and tests. Fixed/embedded components: spiral case with compressible wrapping (if any), stay ring, foundation ring, discharge ring, draft tube, draft tube liner, pit liner, and foundation plates and anchorages. Stationary/removable components: headcover,
35、bottom ring, facing plates, stationary wearing ring, guide vanes. Regulating apparatus for guide vanes: servomotor, connecting rods, regulating ring (ifany), guide vane linkage system, guide vane overload protection and locking devices and mechanical synchronizing device (if any). Rotating parts, be
36、arings and seals: runner (impeller), main shaft, intermediate shaft (ifany), guide bearing with oil supply, oil/water cooler, main shaft seal, standstill (maintenance) seal.BSIEC61366-6:1998 2 BSI 05-1999 Thrust bearing (if part of the hydraulic machine supply): bearing support, thrust block, rotati
37、ng ring, thrust bearing pads and pivots, oil sump with oil supply (common with guide bearing, if any), oil/water coolers, instrumentation. Miscellaneous components: walkways, lifting fixtures, special tools, standard tools, turbine pit hoist, nameplate, draft tube maintenance platform. Auxiliary sys
38、tems: runner pressure balancing and pressure relief lines, turbine pit drainage and other drainage systems; lubrication, draft tube air admission, tailwater depression, cooling water supply for runner seal for blow-down operation. Instrumentation: controls, indication and protection. Spare parts: ba
39、sic spare parts. Model acceptance tests: test requirements. Site installation and commissioning tests: installation procedures and commissioning tests. Field acceptance tests: scope of field tests, reports and inspection of cavitation pitting. An example of the proposed table of contents for Tenderi
40、ng Documents for a Francis turbine is given in Annex A of IEC61366-1. The example does not include technical specifications of the control system, shut-off valves, gates motor-generator, pony motor, frequency converter for starting into pump-mode, excitation system which may, at the Employers option
41、, be included in the Tendering Documents for the pump-turbine or may be specified in separate documents. Chapter6 (technical specifications) of the Tendering Documents should be arranged as follows: 1 Scope This technical report, referred to herein as the Guide, is intended to assist in the preparat
42、ion of Tendering Documents and tendering proposals and in the evaluation of tenders for hydraulic machines. This part of IEC61366 provides guidelines for pump-turbines. 2 Reference documents IEC 60041:1992, Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage
43、pumps and pump-turbines. IEC 60193:1965, International code for model acceptance tests of hydraulic turbines. IEC 60308:1970, International code for testing of speed governing systems for hydraulic turbines. IEC 60609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump-
44、turbines. IEC 60805:1985, Guide for commissioning operation and maintenance of storage pumps and of pump-turbines operating as pumps. IEC 60994:1991, Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump turbines). IEC 61362, Guide to specif
45、ication of hydro-turbine control systems 1) . ISO 3740:1980, Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards and for the preparation of noise test codes. 3 Technical requirements 3.1 Scope of work This subclause should describe the scope of wo
46、rk and the responsibilities which are to be conferred upon the Contractor. The general statement of scope of work presented in TD 2)section 2.1 (5.1 of IEC61366-1) shall be consistent with what is presented here. In a similar manner, pay items in the tender form, TDsection1.2(4.2 of IEC61366-1) shou
47、ld be defined in TD subsection6.1.1. 6.1 Technical requirements; 6.2 Technical specifications for fixed/embedded components; 6.3 Technical specifications for stationary/removable components; 6.4 Technical specifications for guide vane regulating apparatus; 6.5 Technical specifications for rotating p
48、arts, guide bearings and seals; 6.6 Technical specifications for thrust bearing; 6.7 Technical specifications for miscellaneous components; 6.8 Technical specifications for auxiliary systems; 6.9 Technical specifications for instrumentation; 6.10 Spare parts; 6.11 Model acceptance tests; 6.12 Site i
49、nstallation and commissioning; 6.13 Field acceptance tests. 1) To be published. 2) All references to Tendering Documents (TD) apply to Annex A of IEC61366-1.BSIEC61366-6:1998 BSI 05-1999 3 The scope of work should begin with a general statement which outlines the various elements of the work including (where applicable) the design, model testing, supply of materials and labour, fabrication, machining, quality assurance, quality control, shop assembly, shop testing, spare parts, trans
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