1、BRITISH STANDARD BS IEC 61366-3:1998 Hyraulic turbines, storage pumps and pump-turbines Tendering Documents Part3: Guidelines for technical specifications for Pelton turbines ICS27.140BSIEC61366-3:1998 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was
2、 published underthe authority of the Standards Board and comes intoeffect on 15 September 1998 BSI 04-1999 ISBN 0 580 30317 9 National foreword This British Standard reproduces verbatim IEC61366-3:1998 and implements it as the UK national standard. The UK participation in its preparation was entrust
3、ed 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 i
4、nternational 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 a
5、s 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 BSI
6、 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 respons
7、ible 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 andii, theIEC title page, pages ii to iv, pages1 to16 and a back cover. This standar
8、d 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 CommentsBSIEC61366-3:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Text
9、 of IEC61366-3 1ii blankBSIEC61366-3:1998 ii BSI04-1999 Contents Page 0 Introduction 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 3 3.4 Design conditions 4 3.5 Technical performance
10、and other guarantees 6 3.6 Mechanical design criteria 8 3.7 Design documentation 8 3.8 Materials and construction 9 3.9 Shop inspection and testing 9 4 Technical specifications for fixed/embedded components 10 4.1 Manifold 10 4.2 Turbine housing 11 5 Technical specifications for stationary/removable
11、 components 11 5.1 Branch pipe (including intake pipe and nozzle pipe) 11 5.2 Upper turbine housing (if not embedded) 11 5.3 Turbine cover 12 5.4 Brake jet assembly 12 6 Technical specifications for injector/deflector system 12 6.1 Injector system 12 6.2 Deflector system 12 7 Technical specification
12、s for rotating parts, guide bearings and seals 12 7.1 Runner 12 7.2 Main shaft 13 7.3 Turbine guide bearing 13 7.4 Main shaft seal (if necessary) 13 7.5 Standstill maintenance seal (if necessary) 13 8 Technical specifications for thrust bearing (when specified as part of the hydraulic machine) 13 8.
13、1 Design data 13 8.2 Bearing support 13 8.3 Bearing assembly 13 8.4 Oil injection pressure system 14 9 Technical specifications for miscellaneous components 14 9.1 Walkways, access platforms and stairs 14 9.2 Lifting fixtures 14 9.3 Special tools 14 9.4 Standard tools 14 9.5 Turbine pit hoist 14 9.6
14、 Nameplate 14 9.7 Runner cart and rails (if required) 14 9.8 Access door to turbine housing interior (if required) 14 10 Technical specifications for auxiliary systems 14 10.1 Bearing lubrication system 14 10.2 Cooling water system for runner 14 10.3 Tailwater air admission system 14BSIEC61366-3:199
15、8 BSI 04-1999 iii Page 10.4 Turbine pit drainage 14 11 Technical specifications for instrumentation 15 11.1 Controls 15 11.2 Indication 15 11.3 Protection 15 12 Spare parts 15 13 Model acceptance tests 15 14 Site installation and commissioning tests 15 14.1 General 15 14.2 Installation procedures 16
16、 14.3 Tests during installation 16 14.4 Commissioning tests 16 15 Field acceptance tests 16 15.1 Scope and reports 16 15.2 Inspection of cavitating pitting 16 Table 1 Summary of guide for the preparation of Tendering Documentsforhydraulic turbines, storage pumps and pump-turbines ivBS IEC 61366-3:19
17、98 iv BSI 04-1999 Table 1 Summary of guide for the preparation of Tendering Documents for hydraulic turbines, storage pumps and pump-turbines CONTENTS OF GUIDE IEC61366-1 TO IEC61366-7 SAMPLE TABLE OF CONTENTS OF TENDERING DOCUMENTS (TD) (Example for the Francis turbines; see61366-1, Annex A) Part C
18、lause 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 conditio
19、ns 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 requirements
20、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 for statio
21、nary/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 systems Tec
22、hnical 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 Examples of
23、technical data sheets Technical performance guarantees Example of cavitation pitting guarantees Check list for model test specifications Sand erosion considerations 2 to7 Technical specifications 2 3 4 5 6 7 Francis turbines Pelton turbines Kaplan and propeller turbines Tubular turbines Pump-turbine
24、s Storage pumpsBSIEC61366-3:1998 BSI 04-1999 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. To achieve clarity and to a
25、void 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). Accordingly, the ITT may re
26、fer to other chapters and sections 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 to items of a project specifi
27、c 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 this event, detailed technica
28、l 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); Propeller and Kaplan turbines (Part4); Tubular tu
29、rbines (Part5); Pump-turbines (Part6); Storage pumps (Part7). The guidelines for preparation of Pelton turbine specifications include technical specifications for the following: Design conditions: Project arrangement, hydraulic conditions, specified conditions, mode of operation, generator character
30、istics, synchronous condenser characteristics, transient behaviour data, stability of the system, noise, vibration, pressure fluctuations and safety requirements. Technical performance and other guarantees: power; discharge (if required); efficiency; maximum momentary pressure; minimum momentary pre
31、ssure; 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, stresses and deflections and special design considerations (earthqu
32、ake 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: material selection and standards, quality assurance procedures,
33、 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: manifold for multi-jet turbines and turbine housing. Stationary/removable componen
34、ts: branch pipe for horizontal turbines, upper turbine housing (if not embedded), turbine cover, brake jet assembly). Injector and deflector systems: nozzles, needles, needle servomotors, deflectors or cut-in deflectors, deflector servomotors, links, needle-deflector combining mechanism and oil pipi
35、ng. Rotating parts, bearings and seals: runner, main shaft, guide bearing with oil supply, oil/water cooler, 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 gui
36、de bearing, if any), oil/water coolers, instrumentation. Miscellaneous components: walkways, lifting fixtures, special tools, standard tools, turbine pit hoist, nameplate, runner inspection platform (ifrequired). Auxiliary systems: bearing lubrication system (if required), tailwater air admission sy
37、stem, turbine pit drainage (if required), turbine housing ventilation, tailwater depression (ifrequired). Instrumentation: controls, indication and protection. Spare parts: basic spare parts.BSIEC61366-3:1998 2 BSI 04-1999 Model acceptance tests: test requirements. Site installation and commissionin
38、g 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 Tendering documents for a Francis turbine is given in Annex A of IEC61366-1. The example does not inc
39、lude technical specifications for the control system, or high-pressure side valves which, at the Employers option, may be included in the Tendering documents for the Pelton turbine or may be specified in separate Tendering documents. Chapter6 (technical specifications) of the Tendering documents sho
40、uld be arranged as follows: 1 Scope This Technical Report, referred to herein as “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 Pelton turbines. 2
41、Reference documents IEC60041:1992, Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines. IEC60193:1965, International code for model acceptance tests of hydraulic turbines. IEC60308:1970, International code for testing of speed governin
42、g systems for hydraulic turbines. IEC60545:1976, Guide for commissioning, operation an maintenance of hydraulic turbines. IEC60609-2:1997, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump-turbines Part2: Evaluation in Pelton turbines. IEC60994:1991, Guide for field measure
43、ment of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump-turbines). IEC60995:1991, Determination of the prototype performance from model acceptance tests of hydraulic machines with consideration of scale effects. IEC61362, Guide to specification of hydro-turbine cont
44、rol systems 1) . ISO3740:1980, Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards and for the propagation of noise test codes. 3 Technical requirements 3.1 Scope of work This subclause should describe the scope of work and the responsibilities wh
45、ich are to be conferred upon the Contractor. The general statement of scope of work presented in TD 2)section2.1(5.1) shall be consistent with what is presented here. In a similar manner, pay items in the tender form, TD section1.2 (subclause4.2) should be defined directly from TD subsection6.1.1. 6
46、.1 Technical requirements; 6.2 Technical specifications for fixed/embedded components; 6.3 Technical specifications for stationary/removable components; 6.4 Technical specifications for deflector/cut-in deflector regulating apparatus; 6.5 Technical specifications for rotating parts, guide bearings a
47、nd 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 installation and commis
48、sioning tests; 6.13 Field acceptance tests. 1) To be published. 2) All references to Tendering documents (TD) apply to Annex A of IEC61366-1.BSIEC61366-3:1998 BSI 04-1999 3 The scope of work should begin with a general statement which outlines the various elements of the work including (where applic
49、able) 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 installation, commissioning, acceptance testing, warranty and other services specified or required for the items of work. 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
