1、BRITISH STANDARD BS IEC 61366-2:1998 Hydraulic turbines, storage pumps, and pump turbines Tendering documents Part 2: Guidelines for technical specifications for Francis turbines ICS 27.140BSIEC61366-2:1998 This British Standard, having been prepared under the direction of the Engineering Sector Boa
2、rd, was published under the authority of the Standards Board and comes into effect on 15 June1998 BSI 04-1999 ISBN 0 580 29896 5 National foreword This British Standard reproduces verbatim IEC 61366-2:1998 and implements it as the UK national standard. The UK participation in its preparation was ent
3、rusted 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 relat
4、ed 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 January1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbe
5、red 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 th
6、e BSI 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 re
7、sponsible 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, pages i and ii, the IEC title page, pages ii to iv, pages 1 to 18 and a back cover. Th
8、is standard has been 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 CommentsBSIEC61366-2:1998 BSI04-1999 i Contents Page National foreword Inside front c
9、over Text of IEC 61366-2 2ii blankBSIEC61366-2:1998 ii BSI04-1999 Contents Page 0 Introduction to technical specifications 2 1 Scope 3 2 Reference documents 3 3 Technical requirements 3 3.1 Scope of work 3 3.2 Limits of the contract 4 3.3 Supply by Employer 4 3.4 Design conditions 5 3.5 Technical pe
10、rformance and other guarantees 7 3.6 Mechanical design criteria 9 3.7 Design documentation 9 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 12 4.3 Foundation ring 12 4.4 Draft tube and
11、draft tube liner 13 4.5 Pit liner 13 5 Technical specifications for stationary/removable components 13 5.1 Headcover and bottom ring 13 5.2 Guide vanes 14 6 Technical specifications for guide vane regulating apparatus 14 6.1 Servomotors 14 6.2 Connecting rods 14 6.3 Regulating ring 14 6.4 Guide vane
12、 linkage 14 6.5 Guide vane overload protection 14 6.6 Locking devices 14 7 Technical specifications for rotating parts, bearings and seals 14 7.1 Runner 14 7.2 Main shaft 14 7.3 Turbine guide bearing 15 7.4 Main shaft seal 15 7.5 Standstill shaft (maintenance) seal 15 8 Technical specifications for
13、thrust bearing (when specified as part of turbine supply) 15 8.1 Design data 15 8.2 Bearing support 15 8.3 Bearing assembly 15 8.4 Oil injection pressure lift system 15 9 Technical specifications for miscellaneous components 16 9.1 Walkways, access platforms and stairs 16 9.2 Lifting fixtures 16 9.3
14、 Special tools 16 9.4 Standard tools 16 9.5 Turbine pit hoist 16 9.6 Nameplate 16 10 Technical specifications for auxiliary systems 16 10.1 Bearing lubrication system 16BSIEC61366-2:1998 BSI04-1999 iii Page 10.2 Runner pressure balancing and pressure relief lines 16 10.3 Turbine pit drainage 16 10.4
15、 Lubrication of guide vane regulating system 16 10.5 Air admission system 16 10.6 Tailwater depression system 16 11 Technical specifications for instrumentation 16 11.1 Controls 16 11.2 Indication 17 11.3 Protection 17 12 Spare parts 17 13 Model acceptance tests 17 14 Site installation and commissio
16、ning 17 14.1 General 17 14.2 Installation procedures 18 14.3 Tests during installation 18 14.4 Commissioning tests 18 15 Field acceptance tests 18 15.1 Scope and reports 18 15.2 Inspection of cavitating pitting 18 Table 1 Summary of guide for the preparation of Tendering Documents forhydraulic turbi
17、nes, storage pumps and pump-turbines 1iv blankBS IEC 61366-2:1998 BSI 04-1999 1 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 IEC61366-7 SAMPLE TABLE OF CONTENTS OF TENDERING DOCUMENTS (TD
18、) (Example for the Francis turbines; see 61366-1, Annex A) Part Clause Title Chapter Title 1 General and annexes 1 Tendering requirements 1 2 Project information 1 1 Object and scope of this guide 3 General conditions 1 2 Reference documents and definitions 4 Special conditions 1 3 Arrangement of Te
19、ndering Documents 5 General requirements 1 4 Guidelines for tendering requirements 6 Technical specifications 1 5 Guidelines for project information 6.1 Technical requirements 1 6 Guidelines for general conditions, special conditions andgeneral requirements 6.1.1 Scope of work 6.1.2 Limits of the co
20、ntract 6.1.3 Supply by Employer 1 Annexes 6.1.4 Design conditions 6.1.5 Performance and other guarantees A Sample table of contents of Tendering Documents forFrancisturbines 6.1.6 Mechanical design criteria B Comments on factors for evaluation of tenders 6.1.7 Design documentation C Check list for t
21、ender form 6.1.8 Materials and construction D Examples of technical data sheets 6.1.9 Shop inspection and testing E Technical performance guarantees 6.2 Technical specifications for fixed/embedded components F Example of cavitation pitting guarantees 6.3 Technical specifications for stationary/remov
22、able components G Check list for model test specifications 6.4 Technical specifications for guide vane regulating apparatus H Sand erosion considerations 6.5 Technical specifications for rotating parts, bearings and seals 6.6 Technical specifications for thrust bearings 2 to 7 Technical specificatio
23、ns 6.7 Technical specifications for miscellaneous components 6.8 Technical specifications for auxiliary systems 2 Francis turbines 6.9 Technical specifications for instrumentation 3 Pelton turbines 6.10 Spare parts 4 Kaplan and propeller turbines 6.11 Model tests 5 Tubular turbines 6.12 Installation
24、 and commissioning 6 Pump-turbines 6.13 Field acceptance tests 7 Storage pumpsBSIEC61366-2:1998 2 BSI04-1999 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 Tenderin
25、g Documents (TD) are being issued. To 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 th
26、e Instructions to Tenderers (ITT). Accordingly, 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 chapter 1 “Tendering Requirements”; elsewhere the term “Contractor” should be use
27、d. Special attention should be given 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
28、a particular project or projects. In this event, detailed technical standards should be specified in TD chapter 5 “General requirements”. Technical specifications for the various types of hydraulic machines included in this guide are provided in the following parts: Francis turbines (Part 2); Pelton
29、 turbines (Part 3); Propeller and Kaplan turbines (Part 4); Tubular turbines (Part 5); Pump-turbines (Part 6); Storage pumps (Part 7). The guidelines for preparation of Francis turbine specifications include technical specifications for the following: Design conditions: Project arrangement, hydrauli
30、c conditions, specified conditions, mode of operation, generator characteristics, synchronous condenser characteristics, transient behaviour data, stability of the system, noise, vibration, pressure fluctuations and safety requirements. Technical performance and other guarantees: power; discharge; e
31、fficiency; maximum momentary pressure; minimum momentary pressure; maximum momentary overspeed; maximum steady state runaway speed; cavitation pitting; hydraulic thrust; maximum weights and dimensions for transportation, erection and maintenance. Mechanical design criteria: design standards, stresse
32、s and deflections and special design considerations (earthquake acceleration, etc.). Design documentation: Contractors input needed for the Employers design, Contractors drawings and data, Contractors review of the Employers design and technical reports by Contractor. Materials and construction: mat
33、erial selection and standards, quality assurance procedures, shop methods, corrosion protection and painting. Shop inspection and testing: general requirements and reports, material tests and certificates, dimensional checks, shop assembly and tests. Fixed/embedded components: spiral case with compr
34、essible wrapping (if any), stay ring, foundation ring, discharge ring, draft tube, draft tube liner, pit liner, and foundation plates and anchorage. Stationary removable components: headcover, bottom ring (may be fixed), facing plates, stationary wearing ring, guide vanes. Regulating apparatus for g
35、uide vanes: servomotor, connecting rods, regulating ring, guide vane linkage system, guide vane overload protection and locking devices. Rotating parts, bearings and seals: runner, main shaft, intermediate shaft, guide bearing with oil supply, oil/water cooler, main shaft seal, standstill (maintenan
36、ce) shaft seal. Thrust bearing (when part of the hydraulic machine supply): bearing support, thrust block, rotating 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 fixt
37、ures, special tools, standard tools, turbine pit hoist, nameplate, draft tube maintenance platform. Auxiliary systems: runner pressure balancing and pressure relief lines, turbine pit drainage and other drainage systems; lubrication, draft tube air admission, tailwater depression, cooling water supp
38、ly for runner seal for blow-down operation.BSIEC61366-2:1998 BSI04-1999 3 Instrumentation: controls, indication and protection. Spare parts: basic spare parts. Model tests: test requirements. Site installation and commissioning: installation procedures and commissioning tests. Field acceptance tests
39、: scope of field tests, reports and inspection of cavitation pitting. An example of the proposed table of contents for Tendering Documents for a Francis turbine is given in Annex A. The example does not include technical specifications for the control system, relief valves, or high and low pressure
40、side valves or gates which, at the Employers option, may be included in the Tendering Documents for the Francis turbine, or may be specified in separate documents. Chapter 6 (technical specifications) of the Tendering Documents should be arranged as follows: 1 Scope This technical report, referred t
41、o herein as the Guide, is intended to assist in the preparation of Tendering Documents and tendering proposals and in the evaluation of tenders for hydraulic machines. This part of IEC61366 provides guidelines for Francis turbines. 2 Reference documents IEC 60041:1992, Field acceptance tests to dete
42、rmine the hydraulic performance of hydraulic turbines, storage 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 pi
43、tting evaluation in hydraulic turbines, storage pumps and pump-turbines. IEC 60994:1991, Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump turbines). IEC 61362, Guide to specification of hydro-turbine control systems 1) . ISO 3740:1980,
44、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 work and the responsibilities which are to be conferred upon th
45、e 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, TD section 1.2 (4.2) should be defined directly from TD subsection 6.1.1. The scope of work shoul
46、d 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, transportation to site, site
47、installation, commissioning, acceptance testing, warranty and other services specified or required for the items of work. 6.1 Technical requirements; 6.2 Technical specifications for fixed/embedded components; 6.3 Technical specifications for stationary/removable components; 6.4 Technical specificat
48、ions for guide vane regulating apparatus; 6.5 Technical specifications for rotating parts, 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 specifica
49、tions for instrumentation; 6.10 Spare parts; 6.11 Model acceptance tests; 6.12 Site installation and commissioning; 6.13 Field acceptance tests. 1) To be published. 2) All references to Tendering Documents (TD) apply to Annex A of IEC 61366-1BSIEC61366-2:1998 4 BSI04-1999 The general statement should be followed by a specific and detailed list of the major items which the Employer wishes to have as separate payment items in the tender form, for example: 3.2 Limits of the contract This
