BS EN 60652-2002 Loading tests on overhead line structures《架空线建筑物的负荷试验》.pdf

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1、BRITISH STANDARD BS EN 60652:2004 Incorporating Amendment No. 1 to BS IEC 60652:2002 (renumbers the BS IEC as BS EN 60652:2004) Loading tests on overhead line structures The European Standard EN 60652:2004 has the status of a British Standard ICS 29.240.20 BS EN 60652:2004 This British Standard, hav

2、ing been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 28 August 2002 BSI 31 March 2004 ISBN 0 580 40310 6 National foreword This British Standard is the official English

3、language version of EN 60652:2004. It is identical with IEC 60652:2002. The UK participation in its preparation was entrusted to Technical Committee PEL/11, Overhead lines, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secret

4、ary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalog

5、ue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the

6、 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 international and European developments and promulgate them in the UK. Summary of pages This document comprises a front

7、 cover, an inside front cover, the EN title page, pages 2 to 13 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 15050 31 March 2004 Implementation of the European StandardEUR

8、OPEAN STANDARD EN 60652 NORME EUROPENNE EUROPISCHE NORM February 2004 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENEL

9、EC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60652:2004 E ICS 29.240.20 English version Loading tests on overhead line structures (IEC 60652:2002) Essais mcaniques des structures de lignes ariennes (CEI 60652:2002) Belastungsprfunge

10、n an Freileitungstragwerken (IEC 60652:2002) This European Standard was approved by CENELEC on 2004-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alte

11、ration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by t

12、ranslation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, Fra

13、nce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 65602:2400 - - 2 Foreword The text of the International Standard IEC 60652:2002, prepared by IEC

14、TC 11, Overhead lines, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 60652 on 2004-02-01 without any modification. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard

15、 or by endorsement (dop) 2005-02-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60652:2002 was approved by CENELEC as a European Standard

16、without any modification. _ Page2 EN60652:200425606 2002:CEI 3 CONTENTS OFWERODR.5 1 Scope.4 2 Normative references4 3 Definitions 4 4 Categories of tests5 4.1 Design tests 5 4.2 Sample tests .5 5 General test criteria .6 6 Test specification.6 7 Test programme 7 8 Assembly of support 7 9 Load appli

17、cation 7 9.1 Combined loads7 9.2 Precautions for load application 8 9.3 Load levels.8 9.4 Tolerances on applied loads .8 9.5 Loading rate and holding period8 10 Measurements.9 10.1 Load and angle measurements. 9 10.2 Deflection measurements .9 10.3 Strain measurements9 11 Sequence of test loading ca

18、ses9 12 Video documentation .9 13 Acceptance criteria 9 14 Premature failure10 14.1 Design tests 10 14.2 Sample tests .10 14.3 Replacement of components10 15 Material specification 10 16 Test report11 17 Record and traceability .12 Annex ZA (normative) Normative references to international publicati

19、ons with their corresponding European publications 13 Page3 EN60652:200425606 2002:CEI 7 LOADING TESTS ON OVERHEAD LINE STRUCTURES 1 Scope This International Standard codifies the methods of testing supports for overhead lines. It is applicable to the testing of supports and structures of overhead l

20、ines for voltages above 45 kV; it can also serve as reference to the testing of lower voltage supports. There is no restriction on the type of material used in the fabrication of the supports which may include, but not be limited to, metallic alloys, concrete, timber, laminated wood and composite ma

21、terials. If required by the client, this standard may also be applied to the testing of telecommunication supports, railway/tramway overhead electrification supports, electrical substation gantries, street lighting columns, wind turbine towers, ski-lift supports, etc. Tests on reduced scale models o

22、f supports are not covered by this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any am

23、endments) applies. IEC 60050(466):1990, International Electrotechnical Vocabulary (IEV) Chapter 466: Overhead lines ISO/IEC 17025:1999, General requirements for the competence of testing and calibration laboratories 3 Definitions For the purposes of this International Standard,the following definiti

24、ons apply. The definitions listed below supplement those given in lEC 60050(466). 3.1 client organization which contracts with the testing station and provides the test specification 3.2 design load load for which the support has been designed Page4 EN60652:200425606 2002:CEI 9 3.3 failure load poin

25、t at which the support cannot carry any additional load NOTE It is also known as the limit state failure load and is determined during a destruction test on the support. 3.4 test report document summarizing all the relevant aspects of the tests 4 Categories of tests With respect to the purpose of th

26、e test, the level of instrumentation and the method of execution, this standard refers to two categories of tests: a) design tests; b) sample tests. 4.1 Design tests Design tests are normally carried out on prototype supports, with one or more of the following objectives: a) as part of a research an

27、d/or development programme in the design of an innovative support; b) to verify compliance of the support design with the specifications (also known as type tests); c) to develop and/or validate a new design standard or methodology; d) to develop and/or validate new fabrication processes. When tests

28、 are carried out to verify design parameters, the test support shall be identical as far as possible to the production supports (see clause 5, first paragraph). Tests on full scale sections or part of the support may also be undertaken. Design tests shall be carried out to at least the design load o

29、r to failure, especially when testing according to 4.1b) and/or 4.1c). 4.2 Sample tests These are intended for use either prior to or during the fabrication of the production of a batch of supports to act as a check on the quality of the fabrication, or on the materials being used. The support may b

30、e taken at random from the production supports during manufacture. Sample tests are taken to a specific percentage of the design load (usually 100 %), as stipulated in the test specification. Page5 EN60652:200425606 2002:CEI 11 5 General test criteria For a design test (according to 4.1b) or 4.1c),

31、the material(s) and the manufacturing processes used in the fabrication of the prototype support shall be to the same specifications as those used during the fabrication of the production supports. These specifications shall include the member sectional properties, connection details, e.g. bolt or w

32、eld sizes, material grades and fabrication processes. Prior to the commencement of the prototype support fabrication, agreement shall be made with regard to the surface coating of the support. Agreement shall also be made with respect to the organization responsible for the checking of the support p

33、rior to the testing. If a sample test is required on a production support, the components may be chosen at random from the batch. Whether it is for the design test (according to 4.1b) or the sample test, the support shall successfully withstand the loads specified by the client. If required by the c

34、lient, the testing station shall be accredited by an external organization to perform this type of test according to the procedures of quality assurance defined by ISO/IEC 17025. 6 Test specification The client shall prepare and transmit to the testing station, at an agreed time prior to the deliver

35、y of the support, the following appropriate information: Workshop and/or erection drawings of the support. The mass of each section of the support. Precautions to be observed during the unloading and unpacking. Requirements for the support assembly or disassembly, including if necessary details for

36、lifting the support from the horizontal. Bolt tightening requirements. The tensions for any guys. Nominal force to be applied during slip-joining of sections and/or slip-joint length and their respective tolerances. Foundation setting tolerances and verticality tolerances of the support. The categor

37、y of the test (design or sample). The exact position of the load application points for each loading case. The design loads to be applied on the support for each loading case. All reactions induced on the foundations of the test support for each loading case. If the support is to be realigned betwee

38、n individual tests. The location of the deflection measuring points for each loading case. The position and the orientation of strain gauges. The areas of the test support to be filmed during the test. Page6 EN60652:200425606 2002:CEI 31 7 Test programme The test programme shall be submitted to the

39、client at an agreed date before the test. This document shall be approved by the client and returned to the testing station within an agreed period. The test programme shall include but not be limited to the following information: The expected test date. A description of the proposed foundations for

40、 the test support. The method of load application. A drawing of the test rigging arrangement and attachment details. The position of the dynamometers and/or load cells and the position of angle transducers in the case of resultant load applications. The position of deflection measurement points. The

41、 position and orientation of strain gauges if appropriate. The tolerances (loads, resultant angles, deflections, strain gauges). Details of applied loads for each test load case, load increment and holding period. Holding period for the final level. Loading rate for elastic-plastic materials and cre

42、ep-sensitive materials. The category of the test (design or sample). 8 Assembly of support The test support shall be erected on a footing that simulates the design assumption. The testing station shall proceed with the assembly of the support in accordance with the instructions provided by the clien

43、t. In the case where the testing station encounters a difficulty in the assembly or erection of the support, the client shall be informed and shall decide on the modifications required. If requested by the client, a report of assembly shall be provided by the testing station. This report may include

44、 a video of the different phases of the assembly and any particular difficulty encountered. 9 Load application Loading cases (loads, directions, and load application points) are stated by the client in the test specification. 9.1 Combined loads If, for practical purposes, certain loads (e.g. due to

45、wind on the support) have to be combined, the value of the resultant, its direction, and its application point shall be shown in the test programme. Page7 EN60652:200425606 2002:CEI 51 9.2 Precautions for load application The dynamometer/load cells shall be located in the test rigging as close as pr

46、actical to the load application point on the support. Similarly, it is recommended that the test rigging should be arranged so as to minimize any load eccentricity. The testing station shall minimize the influence of any contact between the test rigging and the support; where this is not practical,

47、this shall be drawn to the clients attention. Unless otherwise agreed, it is recommended that the difference between the required load and the measured load at any individual load application point and at any time during the test should not exceed 5 %. Loads shall be applied in such a way as to avoi

48、d any dynamic effect. However, joint slippage during the support test shall be accepted. 9.3 Load levels The test loads shall be applied in increments to 50 %, 75 %, 90 %, 95 % and 100 % of the specified loads. If required by the client, additional load levels may be considered. 9.4 Tolerances on ap

49、plied loads For each load level, the applied load measurements shall be considered acceptable if they are within the limits shown in table 1 below: Table 1 Load tolerances Load level % Acceptable range % 50 49 to 51 75 74 to 76 90 89 to 91 95 94 to 96 100 100 to102 9.5 Loading rate and holding period For each load increment, the time taken for the load application depe