1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50443:2011Effects of electromagneticinterference on pipelinescaused by high voltage a.c.electric traction systems and/orhigh voltage a.c. power supplysystemsBS EN 50443:201
2、1 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50443:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/9/3, Railway Electrotechnical Applications - FixedEquipment.A list of organizations represented on this committee can beo
3、btained 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 2012ISBN 978 0 580 54804 8ICS 23.040.99; 29.280; 33.100.01Compliance with a British Standard
4、 cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate Text affectedBS EN 50443:2011EUROPEAN STANDARD EN 50443 NORME EUROPENNE EUROPISCHE NORM Decem
5、ber 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means rese
6、rved worldwide for CENELEC members. Ref. No. EN 50443:2011 E ICS 23.040.99; 29.280; 33.100.01 English version Effects of electromagnetic interference on pipelines caused by high voltage a.c. electric traction systems and/or high voltage a.c. power supply systems Effets des perturbations lectromagnti
7、ques sur les canalisations causes par les systmes de traction lectrique ferroviaire en courant alternatif et/ou par les rseaux lectriques H.T. en courant alternatif Auswirkungen elektromagnetischer Beeinflussungen von Hochspannungswechselstrombahnen und/oder Hochspannungsanlagen auf Rohrleitungen Th
8、is European Standard was approved by CENELEC on 2011-10-24. 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 alteration. Up-to-date lists and bibliographical re
9、ferences concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility o
10、f 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 national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France,
11、 Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50443:2011EN 50443:2011 2 Contents Foreword . 4 1 Scope 52 Normative references .
12、 53 Terms and definitions . 64 Procedure 95 Interference distance 95.1 General . 95.2 Interference distance for normal operating conditions 105.2.1 overhead a.c. power systems 105.2.2 underground a.c. power systems 105.3 Interference distance for fault condition 105.3.1 General . 105.3.2 overhead a.
13、c. power systems 105.3.3 underground a.c. power systems 105.4 Summary of the interference distances 106 Interference situations 117 Coupling types 118 Interference 129 Interference results . 1310 Limits for permissible interference . 1310.1 General . 1310.2 Limits related to electrical safety of per
14、sons . 1310.2.1 General . 1310.2.2 Operating conditions 1310.2.3 Fault conditions 1410.3 Limits related to damage to the pipeline system . 1410.3.1 Fault conditions 1410.3.2 Operating conditions 1410.4 Limits related to disturbance of the pipeline system 1411 Evaluation of the interference results .
15、 1412 Mitigation measures . 15Annex A (informative) Indications to select interference situations . 16Annex B (informative) Guidance for interference investigations 17B.1 Introduction . 17B.2 Configuration of the a.c. electric traction system . 17B.3 Configuration of the a.c. power supply system . 1
16、8B.4 Configuration of the pipeline . 18B.5 Calculation methods . 19B.6 Calculation of independent interfering systems . 20Annex C (informative) Measuring methods 21C.1 General . 21C.2 Measurement methods for interference voltages at steady state . 21Annex D (informative) Mitigation measures . 22D.1
17、General . 22D.2 Mitigation measures at the pipeline side 22D.3 Mitigation measures at the a.c railway system side 23D.4 Mitigation measures at the a.c. power supply system side 23Annex E (informative) Management of interference 24E.1 General . 24E.2 Plant life . 24E.3 Exchange of information 24E.4 P
18、lant documentation . 24BS EN 50443:2011 3 EN 50443:2011 Annex F (informative) A-deviations 26Bibliography . 27Tables Table 1 Interference distances 11Table 2 Coupling types and distances to be considered . 12Table 3 Limits for interference voltage related to danger to (electrically) instructed perso
19、ns . 14BS EN 50443:2011EN 50443:2011 4 Foreword This document (EN 50443:2011) has been prepared by Technical Committee CLC/TC 9XC “Electric supply and earthing systems for public transport equipment and ancillary apparatus (Fixed installations)“. This European Standard gives limits relevant to the e
20、lectromagnetic interference produced by high voltage a.c. railway and power supply systems on metallic pipelines. Limits are relevant to the interference which can be tolerated on the metallic pipeline, by the equipment connected to it and by persons working on them or in contact with them. This Eur
21、opean Standard indicates the electromagnetic interference situations to which the limits must be related. Suggestions concerning the interference situations to be examined are given in Annex A. Suggestions concerning the appropriate calculation methods are given in Annex B. Suggestions concerning th
22、e appropriate measurement methods are given in Annex C. Suggestions about the use of mitigation measures are given in Annex D. Suggestions for management of interference are given in Annex E. The following dates are fixed: latest date by which the amendment has to be implemented at national level by
23、 publication of an identical national standard or by endorsement (dop) 2012-10-24 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-10-24 Attention is drawn to the possibility that some of the elements of this document may be the subject of pa
24、tent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. BS EN 50443:2011 5 EN 50443:2011 1 Scope The presence of a.c. power supply systems or of a.c. electric traction systems (in this standard also indicated as a.c. power systems) may cause volta
25、ges to build up in pipeline systems, (in this standard indicated as interfered systems) running in the close vicinity, due to one or more of the following mechanisms: inductive coupling, conductive coupling, capacitive coupling. Such voltages may cause danger to persons, damage to pipelines or conne
26、cted equipment or disturbance to the electrical/ electronic equipment connected to the pipeline. This European Standard deals with the situations where these effects may arise and with the maximum tolerable limits of the interference effects, taking into account the behaviour of the a.c power system
27、s both in normal operating condition and/or during faults. NOTE In the worst case, the pipe may not disperse current to ground. As a consequence, the prospective touch voltage coincides with the interference voltage. This European Standard applies to all metallic pipelines irrespective of the convey
28、ed fluid, e.g. liquid or gas, liable to be interfered by high voltage a.c. railway and high voltage a.c. power supply systems. The objective of this standard is to establish: the procedure for evaluating the electromagnetic interference; the interference distance to be considered; the types of coupl
29、ing to be considered for operating and fault conditions of the high voltage a.c. electric traction systems and high voltage a.c. power supply systems; the configurations to be considered for both metallic pipeline and high voltage a.c. electric traction systems or high voltage a.c. power systems; th
30、e limits of the voltages due to the electromagnetic interference; information on interference situations, calculation methods, measuring methods, mitigation measures, management of interference. This European Standard is applicable to all new metallic pipelines and all new high voltage a.c. electric
31、 traction systems and high voltage a.c. power supply systems and all major modifications that may change significantly the interference effect. This European Standard only relates to phenomena at the fundamental power frequency (e.g. 50 Hz or 16,7 Hz). This European Standard does not apply to: all a
32、spects of corrosion, the coupling from a.c. railway and power supply systems with nominal voltages less than or equal to 1 kV, interference effects on the equipment not electrically connected to the pipeline. 2 Normative references The following referenced documents are indispensable for the applica
33、tion of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-161, International Electrotechnical Vocabulary Chapter 161: Electromagnetic compatibility IEC 60050-195, In
34、ternational Electrotechnical Vocabulary Part 195: Earthing and protection against electric shock BS EN 50443:2011EN 50443:2011 6 IEC 60050-826, International Electrotechnical Vocabulary Part 826: Electrical installations 3 Terms and definitions For the purposes of this document, the terms and defini
35、tions given in the International Electrotechnical Vocabulary (IEV) apply, unless they are defined in this European Standard: 3.1 a.c. electric traction system a.c. railway electrical distribution network used to provide energy for rolling stock NOTE The system may comprise: - contact line systems, -
36、 return circuit of electric railway systems, - running rails of non-electric railway systems, which are in the vicinity of, and conductively connected to the running rails of an electric railway system. 3.2 a.c power supply system a.c. electrical system devoted to electrical energy transmission and
37、including overhead lines, cables, substations and all apparatus associated with them NOTE This includes HV transmission lines with 16,7 Hz. 3.3 a.c. power system a.c. electric traction system or a.c. power supply system NOTE Where it is necessary to differentiate, each interfering system is clearly
38、indicated with its proper term. 3.4 interfering system general expression encompassing an interfering high voltage a.c. electric traction system and/or high voltage a.c. power supply system 3.5 interfered system system on which the interference effects appear NOTE In this standard pipeline system. 3
39、.6 pipeline system system of pipe network with all associated equipment and stations NOTE 1 In this standard pipeline system refers only to metallic pipeline system. NOTE 2 The associated equipment is the equipment electrically connected to the pipeline. 3.7 earth conductive mass of the earth, whose
40、 electric potential at any point is conventionally taken as equal to zero IEC 60050-826-04-01 BS EN 50443:2011 7 EN 50443:2011 3.8 operating condition fault free operation of any system NOTE Transients are not to be considered as an operating condition. 3.9 fault condition non intended condition cau
41、sed by short-circuit to earth, the fault duration being the normal clearing time of the protection devices and switches NOTE The short circuit is an unintentional connection of an energized conductor to earth or to any metallic part in contact with earth. 3.10 conductive coupling coupling which occu
42、rs when a part of the current belonging to the interfering system returns to the system earth via the interfered system or when the voltage to the reference earth of the ground in the vicinity of the influenced object rises because of a fault in the interfering system, and the results of which are c
43、onductive voltages and currents 3.11 inductive coupling phenomenon whereby the magnetic field produced by a current carrying circuit influences another circuit; the coupling being quantified by the mutual impedance of the two circuits, and the results of which are induced voltages and hence currents
44、 that depend for example on the distances, length, inducing current, circuit arrangement and frequency 3.12 capacitive coupling phenomenon whereby the electric field produced by an energized conductor influences another conductor, the coupling being quantified by the capacitance between the conducto
45、rs and the capacitances between each conductor and earth, and the results of which are interference voltages into conductive parts or conductors insulated from earth, these voltages depending for example on the voltage of the influencing system, distances and circuit arrangement 3.13 interference ph
46、enomenon resulting from conductive, capacitive, inductive coupling between systems, and which can cause malfunction, disturbance, danger, damage, etc. 3.14 disturbance malfunction of an equipment loosing its capability of working properly for the duration of the interference NOTE When the interferen
47、ce disappears, the interfered system starts again working properly without any external intervention. 3.15 damage permanent reduction in the quality of service which can be offered by the interfered system NOTE 1 Examples of damages are: coating perforation, pipe pitting, pipe perforation, permanent
48、 malfunction of the equipment connected to the pipes, etc. NOTE 2 A reduction in the quality of service may be also the complete cancellation of service. BS EN 50443:2011EN 50443:2011 8 3.16 interference situation situation in which an interference may appear (permanently or intermittently) between
49、an a.c. power system and a metallic pipeline system, a given interference situation being defined by the geometrical and electrical data of the a.c. power system and of the metallic pipeline system as well as defined by the data describing the medium between the two systems NOTE An interference situation may
