BS EN 50317-2012 Railway applications Current collection systems Requirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact .pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50317:2012Railway applications Current collection systems Requirements for andvalidation of measurementsof the dynamic interactionbetween pantograph andoverhead contact lin

2、eBS EN 50317:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50317:2012. Itsupersedes BS EN 50317:2002+A2:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/9/3, Railway Electrotechnical Applications - Fi

3、xedEquipment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by

4、 BSI StandardsLimited 2012ISBN 978 0 580 70780 3ICS 29.280; 45.060.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2012.Amendments issued since publi

5、cationDate Text affectedBS EN 50317:2012EUROPEAN STANDARD EN 50317 NORME EUROPENNE EUROPISCHE NORM January 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue M

6、arnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50317:2012 E ICS 29.280; 45.060.10 Supersedes EN 50317:2002 + A1:2004 + A2:2007English version Railway applications - Current collection systems - Re

7、quirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact line Applications ferroviaires - Systmes de captage de courant - Prescriptions et validation des mesures de linteraction dynamique entre le pantographe et la catnaire Bahnanwendungen - St

8、romabnahmesysteme - Anforderungen und Validierung von Messungen des dynamischen Zusammenwirkens zwischen Stromabnehmer und Oberleitung This European Standard was approved by CENELEC on 2011-12-26. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condi

9、tions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard ex

10、ists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the na

11、tional electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, S

12、pain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 50317:2012EN 50317:2012 2 Contents Foreword 31 Scope . 42 Normative references . 43 Terms and definitions . 44 Abbreviations and symbols 55 General . 66 Measurement of total mean uplift force 77 Measurement of contact force 87.1 General

13、 requirements . 87.2 Aerodynamic influence of the measurement system 87.3 Inertia correction 87.4 Aerodynamic correction 87.5 Calibration of the measurement system 97.6 Measurement parameters . 97.7 Measurement results . 108 Measurement of displacement . 108.1 General 108.2 Vertical displacement of

14、the contact point 108.3 Uplift at the support . 108.4 Measurement of other displacements in the overhead contact line 109 Measurement of arcing . 109.1 General requirements . 109.2 Calibration of the arc measurement system . 129.3 Adjustment of threshold for the measurement distance 129.4 Values to

15、be measured . 129.5 Measurement results . 12Annex ZZ (informative) Coverage of Essential Requirements of EC Directives 14Figure Figure 1 Detector location . 11BS EN 50317:2012 3 EN 50317:2012 Foreword This document (EN 50317:2012) has been prepared by CLC/SC 9XC, “Electric supply and earthing system

16、s for public transport equipment and ancillary apparatus (Fixed installations)“, of CLC/TC 9X, “Electrical and electronic applications for railways“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national stan

17、dard or by endorsement (dop) 2012-12-26 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2014-12-26 This document supersedes EN 50317:2002 + A1:2004 + A2:2007. EN 50317:2012 includes the following significant technical changes with respect to EN 5

18、0317:2002 + A1:2004 + A2:2007: - new definitions for “cord force”, “mean contact force” and “total mean uplift force” (Clause 3); - updated abbreviation lists (Clause 4); - requirements for examination of total mean uplift force and aerodynamic portions (new Clause 6); - a clear relation between the

19、 different portions of contact force (7.1); - limits for aerodynamic influences of the force measurement system (7.2); - the aerodynamic correction for measured contact forces (7.4); - corrections and elaborations for calibration of force measurement (7.5); - adjustment of filter requirements (7.6);

20、 - adjustment of accuracy requirements for measurement of displacements (Clause 8); - updated requirements for measurement of arcing (Clause 9). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held

21、responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive(s) 2008/57/EC

22、, see informative Annex ZZ, which is an integral part of this document. BS EN 50317:2012EN 50317:2012 4 1 Scope This European Standard specifies the functional requirements for output and accuracy of measurements of the dynamic interaction between pantograph and overhead contact line. 2 Normative re

23、ferences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies

24、. EN 50119 Railway applications Fixed installations Electric traction overhead contact lines 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 collector head / pantograph head pantograph equipment comprising the contact strips and their mountin

25、gs 3.2 contact point point of mechanical contact between a contact strip and a contact wire 3.3 working area of pantograph head lateral and vertical range of possible contact points on the contact strips during normal operation 3.4 contact force vertical force applied by the pantograph to the overhe

26、ad contact line Note 1 to entry: The contact force is the sum of the forces of all contact points 3.5 mean contact force Fmstatistical mean value of the contact force Note 1 to entry: Fmis formed by the static and aerodynamic components of the pantograph contact force 3.6 static contact force vertic

27、al force exerted upward by the collector head on the overhead contact line at standstill 3.7 standard deviation of contact force square root of the sum of the square errors divided by the number of output values minus 1 3.8 aerodynamic force additional vertical force applied by the pantograph as a r

28、esult of air flow around the pantograph assembly. The aerodynamic force depends upon speed BS EN 50317:2012 5 EN 50317:2012 3.9 statistical minimum of contact force value of contact force represented by Fm 3 3.10 statistical maximum of contact force value of contact force represented by Fm+ 3 3.11 c

29、ord force measured force in a cord restraining a contact strip at a defined height 3.12 total mean uplift force vertical force measured at the pantograph head, the latter not touching the contact line. It is equal to the sum of static contact force and the aerodynamic force caused by the air at the

30、considered speed for a given height of contact points 3.13 transfer function magnitude magnitude of the ratio between the applied and the measured forces of the pantograph and instrumentation determined by a dynamic excitation of the pantograph, at the pantograph head for a range of frequencies 3.14

31、 tension length length of overhead contact line between two terminating points SOURCE: EN 50119 3.15 control section representative part of the total measuring length, over which the measuring conditions are compliant with standard conditions 3.16 pantograph current current that flows through the pa

32、ntograph 3.17 arcs, arcing flow of current through an air gap between a contact strip and a contact wire usually indicated by the emission of intense light 3.18 sensitivity curve relationship between the power density of the arc in W/cm and the response of the detector in volts within the spectral r

33、ange of interest 3.19 nominal current current that flows through one pantograph for nominal power of train 3.20 percentage of arcing NQ proportion of driving time with arcing 4 Abbreviations and symbols For the purposes of this document, the following abbreviations and symbols apply. aSensoriacceler

34、ation measured in acceleration sensor i BS EN 50317:2012EN 50317:2012 6 d measurement distance between arc detector and light source (contact strip) drefreference distance between arc detector and light source Fappliedforce applied to pantograph head Fccontact force Fcorraeroaerodynamic force correc

35、tion (see 7.4) Fmmean contact force Fmeasuredforce measured FSensorimeasured force in sensor i f1minimum frequency fiactual frequency fnmaximum frequency g surface power density generated by the smallest arc that shall be detected at reference distance J accuracy of the transfer function kanumber of

36、 acceleration sensors kfnumber of force sensors mabovemass between contact point and force sensors (see 7.3) NQ percentage of arcing n number of frequency steps tarc duration of arcs recorded ttotalmeasured duration with a pantograph current greater than a specified value x surface power density gen

37、erated by the smallest arc that shall be detected at measurement distance xrefsurface power density generated by the smallest arc that shall be detected at reference distance standard deviation of contact force 5 General The measurement of the interaction of the contact line and the pantograph is in

38、tended to prove the safety of operation and the quality of the current collection system. Results of measurements of different current collection systems shall be comparable, to approve components for free access within Europe. NOTE Measured values are also required for validation of simulation prog

39、rams and other measurement systems. To check the performance capability of the current collection system at least the following data shall be measured: BS EN 50317:2012 7 EN 50317:2012 the contact wire uplift at the support as the pantograph passes; and either the mean contact force and standard dev

40、iation or the percentage of arcing. In addition to the measured values, the operating conditions (train speed, location.) shall be recorded continuously and the environmental conditions (rain, ice, temperature, wind, tunnel.) and test configuration (parameters and arrangement of pantographs, type of

41、 overhead contact system.) during the measurement shall be recorded in the test report. This additional information shall ensure repeatability of the measurement and comparability of the results. 6 Measurement of total mean uplift force Where a tethered test is used to measure the total mean uplift

42、force the following requirements shall be fulfilled. A tethered test determines cord force(s). The total mean uplift force is the sum of all mean values of the measured cord forces at the chosen height, speed and measurement conditions. The aerodynamic force is the total mean uplift force minus the

43、static contact force. For this measurement the pantograph shall be restrained at a height as near as possible to the contact wire height for which the result shall be valid. The restraint shall be provided by vertical cords to each collector strip. The cords shall have adequate tensile stiffness, to

44、 constrain pitching of the head. The accuracy of adjustment shall be checked on horizontal track without cant. The collector strips shall be adjusted so that the along track and cross track errors are less than 1,5 relative to plane of rails. The contact wire shall not touch the pantograph during th

45、e test. NOTE 1 A typical distance between collector head and contact wire is 10 cm to 15 cm. The force in each cord shall be measured. The dynamic behaviour of the cord forces depends on a number of influences (surrounding conditions, turbulence around the cords, track conditions, tunnels.). To achi

46、eve confidence with the results the variance of the forces recorded and their repeatability over different sections shall be demonstrated. The speed dependency shall be measured between 80 km/h and the maximum speed in steps. The step shall be chosen in accordance with the maximum train speed. NOTE

47、2 A typical step is 20 km/h or 5 steps for the complete speed range. In addition to the conditions recorded according to Clause 5, the train configuration and driving direction and also the restrained height and wear conditions of the collector strips shall be noted. As a result of the tethered test

48、 the total mean uplift force as a function of speed for the measured configuration shall be presented. BS EN 50317:2012EN 50317:2012 8 7 Measurement of contact force 7.1 General requirements The measurement of contact force shall be carried out on the pantograph using force sensors. The force sensor

49、s shall be located as near as practicable to the contact points. The measurement system shall measure the vertical component of the contact forces, minimising interference from forces in other directions (e.g. contact friction). All sensors shall be temperature compensated for the measuring conditions. For pantographs with independent contact strips each contact strip shall be measured separately. The measurement syste