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1、BRITISH STANDARD BS EN 13146-5:2002 Railway applications Track Test methods for fastening systems Part 5: Determination of electrical resistance The European Standard EN 13146-5:2002 has the status of a British Standard ICS 93.100 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT
2、+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13146-5:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 28 November 2002 BSI 28 November 200
3、2 ISBN 0 580 40860 4 National foreword This British Standard is the official English language version of EN 13146-5:2002. The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track components, which has the responsibility to: A list of organizations represented
4、 on this committee can be obtained on request to its secretary. 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 b
5、y using the “Search” facility of the BSI Electronic Catalogue 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 immun
6、ity from legal obligations. 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 international and European developments and promulgate them
7、in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No
8、. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13146-5 November 2002 ICS 93.100 English version Railway applications - Track - Test methods for fastening systems - Part 5:
9、Determination of electrical resistance Applications ferroviaires - Voie - Mthodes dessai pour les systmes de fixation - Partie 5: Dtermination de la rsistance lectrique Bahnanwendungen - Oberbau - Prfverfahren fr Schienenbefestigungssysteme - Teil 5: Bestimmung des elektrischen Widerstandes This Eur
10、opean Standard was approved by CEN on 18 October 2002. CEN 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 alteration. Up-to-date lists and bibliographical references
11、concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its o
12、wn language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spa
13、in, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national
14、Members. Ref. No. EN 13146-5:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13146-5:2002 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions, symbols and abbreviations.4 3.1Terms and definitions4
15、3.2Symbols and abbreviations4 4Principle4 5Apparatus .4 5.1Rail.4 5.2Water.5 5.3Spray equipment5 5.4Electricity supply .5 5.5Instruments.5 6Test specimens5 7Procedure .5 8Calculations7 9Test report 7 Annex A (informative) Resistance/time plot .8 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29
16、 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13146-5:2002 (E) 3 Foreword This document (EN 13146-5:2002) has been prepared by Technical Committee CEN /TC 256 “Railway applications“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national sta
17、ndard, either by publication of an identical text or by endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest by May 2003. This document has been prepared under mandates (M/0241), M/2752) given to CEN by the European Commission and the European F
18、ree Trade Association, and supports essential requirements of EU Directive(s). No existing European Standard is superseded. In this European Standard the annex A is informative. This European Standard is one of the series EN 13146 as listed below. Part 1 : Determination of longitudinal rail restrain
19、t Part 2 : Determination of torsional resistance Part 3 : Determination of attenuation of impact loads Part 4 : Effect of repeated loading Part 5 : Determination of electrical resistance Part 6 : Effect of severe environmental conditions Part 7 : Determination of clamping force Part 8 : In service t
20、esting These support the requirements in the series EN 13481 Railway applications Track Performance requirements for fastening systems Parts 1 to 7. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European
21、 Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1) Railway equipment. 2) Standardization in the field of Railway Equipment on the Inte
22、roperability of the Trans-European High-Speed Rail System. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13146-5:2002 (E) 4 1 Scope This Part of this European Standard specifies a laboratory test procedure for determining the electrical
23、 resistance, in wet conditions, between the running rails provided by a fastening system fitted to a steel or concrete sleeper, bearer or element of slab track. This test procedure applies to a complete fastening assembly. 2 Normative references This European Standard incorporates by dated or undate
24、d reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when in
25、corporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 27888, Water quality - Determination of electrical conductivity (ISO 7888:1985). EN 13481-1:2002, Railway applications Track Performance requirements
26、 for fastening systems Part 1: Definitions. 3 Terms and definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 13481-1:2002 apply. 3.2 Symbols and abbreviations For the purposes of this European Standard, the
27、 following symbols apply. Kcorrection factor for the conductivity of the water used; Rmeasured resistance, in ; R33 resistance corrected to = 33 mS/m, in ; conductivity of water used, in mS/m. 4 Principle The electrical resistance between two short lengths of rail fastened to the support is measured
28、 whilst the whole support and fastenings are sprayed with water at a controlled rate. Correction is made for the conductivity of the water by applying the factor K. 5 Apparatus 5.1 Rail Two short lengths (approximately 0,5 m) of rail, of the section for which the fastening assembly under test is des
29、igned. The rail shall be unlaminated and have no loose rust on the surface nor be polished on the foot. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13146-5:2002 (E) 5 5.2 Water A potable water supply having known conductivity in the r
30、ange (20 to 80) mS/m measured in accordance with EN 27888 at the temperature at the time of spraying and corrected to a temperature of 25 C. NOTECorrection factors are given in EN 27888. 5.3 Spray equipment A frame which can be moved parallel to the rails, incorporating four spray nozzles as shown i
31、n Figure 1. The nozzles shall have a diameter 3,6 mm and a spray cone of 100 to 125. The equipment shall include a means of controlling and measuring the flow of water to each nozzle. 5.4 Electricity supply Alternating current supply of (30 3) V RMS and (50 15) Hz. 5.5 Instruments Instruments to mea
32、sure the applied voltage and resultant current flow between the rails with an accuracy of 1 % which permit the calculation of resistance over the range 1 x 102 to 1 x 106 . The equipment shall have a capability to print out a record of calculated resistance against time. The calibration of the instr
33、uments shall be verified with equipment having certified traceability to European or International Standards using the International System of units (SI). 6 Test specimens Three steel or concrete sleepers or bearers or elements of slab track with cast-in fastening components or holes and rail seats
34、as made without modification for this test. Each specimen is tested individually. The test specimens are described as sleepers in the test procedure. 7 Procedure The test shall be carried out under cover and protected from rain and draughts in a room which is ventilated and has an air temperature (1
35、5 to 30) C. Fit the rails to one sleeper using all the fastening components as assembled in track. Support the sleeper, which shall be surface dry, on two electrically insulating blocks, not less than 50 mm thick, as shown in Figure 1. NOTESuitable supports are wood blocks with plastics pads attache
36、d to provide insulation. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13146-5:2002 (E) 6 400 1000 mm 400400 mm400 mm 1 3 5 4 2 mmmm Key 1spray frame 2spray nozzles as described in 5.3 3test sleepers as described in clause 6 4wood block
37、s 5plastics pads Figure 1 Test arrangement If the sleeper has not been used for this test before, carry out the spraying procedure and leave for not less than 24 h or until surface dry, whichever is longer, before performing the test. Set up the measuring instruments as shown in Figure 2 and connect
38、 to the electrical supply. Move the spray equipment over the sleeper and spray with water at (10 to 20) C at a rate of (7 1) l/min from each nozzle for 2 min. Record the voltage and current during spraying and for not less than 10 min after spraying has ceased. Repeat the test twice more on other si
39、milar test specimens. If a specimen has been previously tested allow not less than 24 h or the time taken for the specimen to become surface dry, whichever is the longer, between tests. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1314
40、6-5:2002 (E) 7 A Figure 2 Measurement circuit 8 Calculations For each test find the minimum resistance R from the resistance-time plot. Calculate the corrected resistance from the following equation. R33 = K R in where K = 0,03 The result of the test is the arithmetic mean of the three values of R33
41、 obtained. 9 Test report The test report shall include at least the following information: a) number, date of issue and title of this standard; b) name and address of laboratory performing the test; c) date test performed; d) name, designation and description of fastening assembly, including individ
42、ual components, tested; e) origin of test specimens; f) rail section used in test; g) details of the sleeper, bearer or element of slab track used; h) conductivity of water used; i) Resistance-time plot for each test and minimum value of R33. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10
43、:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13146-5:2002 (E) 8 Annex A (informative) Resistance/time plot Figure A.1 shows a typical resistance/time plot as described in clause 8. 1 2 012345 Key 1Resistance R , in 2Time min Figure A.1 Typical resistance time plot Licensed Copy: sheffieldun
44、sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:54:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13146-5:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the in
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