BS PD CLC TS 61643-22-2016 Low-voltage surge protective devices Surge protective devices connected to telecommunications and signalling networks Selection and application principle.pdf

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1、BSI Standards PublicationLow-voltage surge protectivedevicesPart 22: Surge protective devices connected to telecommunications and signalling networks Selection and application principlesPD CLCTS 61643-22:2015PD CLC/TS 61643-22:2016TECHNICAL SPECIFICATIONSPCIFICATION TECHNIQUETECHNISCHE SPEZIFIKATION

2、CLC/TS 61643-22 March 2016 ICS 29.240.01; 29.240.10 Supersedes CLC/TS 61643-22:2006 English Version Low-voltage surge protective devices - Part 22: Surge protective devices connected totelecommunications and signalling networks - Selection andapplication principles (IEC 61643-22:2015 , modified) Par

3、afoudres basse tension - Partie 22: Parafoudres connects aux rseaux de signauxet de tlcommunications - Principes de choix etdapplication (IEC 61643-22:2015 , modifie) berspannungsschutzgerte fr Niederspannung - Teil 22: berspannungsschutzgerte fr den Einsatz in Telekommunikations- und signalverarbei

4、tenden Netzwerken - Auswahl und Anwendungsprinzipien(IEC 61643-22:2015 , modifiziert) This Technical Specification was approved by CENELEC on 2016-02-29. CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptlyat national le

5、vel in an appropriate form. It is permissible to keep conflicting national standards in force.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germ

6、any, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisati

7、on ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. CLC/TS 61643-22:2016 E PD CLCTS 61643-22:2015PD C

8、LC/TS 61643-22:2016 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementation of CLC/TS61643-22:2016. It is derived from IEC 61643-22:2015. It supersedes DD CLC/TS 61643-22:2006 which is withdrawn.The CENELEC common modifications have been implemented at theappropriate plac

9、es in the text. The start and finish of each commonmodification is indicated in the text by tags .The UK participation in its preparation was entrusted by TechnicalCommittee PEL/37, Surge Arresters - High Voltage, to SubcommitteePEL/37/1, Surge Arresters - Low Voltage.A list of organizations represe

10、nted on this subcommittee can beobtained on request to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580

11、 91837 7ICS 29.240.01; 29.240.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate Text affectedTECH

12、NICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CLC/TS 61643-22 March 2016 ICS 29.240.01; 29.240.10 Supersedes CLC/TS 61643-22:2006 English Version Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - S

13、election and application principles (IEC 61643-22:2015 , modified) Parafoudres basse tension - Partie 22: Parafoudres connects aux rseaux de signaux et de tlcommunications - Principes de choix et dapplication (IEC 61643-22:2015 , modifie) berspannungsschutzgerte fr Niederspannung - Teil 22: berspann

14、ungsschutzgerte fr den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Auswahl und Anwendungsprinzipien (IEC 61643-22:2015 , modifiziert) This Technical Specification was approved by CENELEC on 2016-02-29. CENELEC members are required to announce the existence of this TS in the

15、same way as for an EN and to make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, De

16、nmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European

17、 Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide fo

18、r CENELEC Members. Ref. No. CLC/TS 61643-22:2016 E PD CLCTS 61643-22:2015CLC/TS 61643-22:2016 2 European foreword This document (CLC/TS 61643-22:2016) consists of the text of IEC 61643-22:2015 prepared by SC 37A “Low-voltage surge protective devices“ of IEC/TC 37 “Surge arresters“, together with the

19、 common modifications prepared by CLC/TC 37A “Low voltage surge protective devices“. This document supersedes CLC/TS 61643-22:2006. CLCTS 61643-22:2016 includes the following significant technical changes with respect to CLC/TS 61643-22:2006: a) Update the use of multiservice SPDs (Article 8) b) Com

20、parison between SPD classification of EN 61643-11 and EN 61643-21 (7.3.3) c) Consideration of new transmission systems as PoE (Annex F) d) EMC requirements of SPDs (Annex G) e) Maintenance cycles of SPDs (Annex I) Attention is drawn to the possibility that some of the elements of this document may b

21、e the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61643-22:2015 was approved by CENELEC as a European Standard with agreed common modifications. PD CLCTS 61643-

22、22:2015 2 IEC 61643-22:2015 IEC 2015 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normative references. 9 3 Terms, definitions and abbreviations 9 3.1 Terms and definitions 10 3.2 Abbreviations 10 4 Description of technologies 10 4.1 General . 10 4.2 Voltage-limiting components 10 4.2.1 Genera

23、l . 10 4.2.2 Clamping components 11 4.2.3 Switching components 11 4.3 Current-limiting components 11 4.3.1 General . 11 4.3.2 Current-interrupting components 11 4.3.3 Current-reducing components. 11 4.3.4 Current-diverting components . 11 5 Parameters for selection of SPDs and appropriate tests from

24、 IEC 61643-21 12 5.1 General . 12 5.2 Normal service conditions . 12 5.2.1 General . 12 5.2.2 Air pressure and altitude 12 5.2.3 Ambient temperature 12 5.2.4 Relative humidity . 12 5.2.5 Abnormal service conditions . 12 5.3 SPD parameters that may affect normal system operation 12 6 Risk management

25、13 6.1 General . 13 6.2 Risk analysis . 14 6.3 Risk identification 14 6.4 Risk treatment . 14 7 Application of SPDs . 16 7.1 General . 16 7.2 Coupling mechanisms . 16 7.3 Application, selection and installation of surge protective devices (SPDs) . 18 7.3.1 Application requirements for SPDs . 18 7.3.

26、2 SPD installation cabling considerations 22 7.3.3 Comparison between SPD classification of IEC 61643-11 and IEC 61643-21 . 25 8 Multiservice surge protective devices . 25 9 Coordination of SPDs/ITE 28 Annex A (informative) Voltage-limiting components 29 A.1 Clamping components . 29 A.1.1 General .

27、29 A.1.2 Metal oxide varistor (MOV) . 29 PD CLCTS 61643-22:2015PD CLC/TS 61643-22:2016IEC 61643-22:2015 IEC 2015 2 CLC/TS 61643-22:2016 2 European foreword This document (CLC/TS 61643-22:2016) consists of the text of IEC 61643-22:2015 prepared by SC 37A “Low-voltage surge protective devices“ of IEC/

28、TC 37 “Surge arresters“, together with the common modifications prepared by CLC/TC 37A “Low voltage surge protective devices“. This document supersedes CLC/TS 61643-22:2006. CLCTS 61643-22:2016 includes the following significant technical changes with respect to CLC/TS 61643-22:2006: a) Update the u

29、se of multiservice SPDs (Article 8) b) Comparison between SPD classification of EN 61643-11 and EN 61643-21 (7.3.3) c) Consideration of new transmission systems as PoE (Annex F) d) EMC requirements of SPDs (Annex G) e) Maintenance cycles of SPDs (Annex I) Attention is drawn to the possibility that s

30、ome of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61643-22:2015 was approved by CENELEC as a European Standard with ag

31、reed common modifications. PD CLCTS 61643-22:2015 2 IEC 61643-22:2015 IEC 2015 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normative references. 9 3 Terms, definitions and abbreviations 9 3.1 Terms and definitions 10 3.2 Abbreviations 10 4 Description of technologies 10 4.1 General . 10 4.2 V

32、oltage-limiting components 10 4.2.1 General . 10 4.2.2 Clamping components 11 4.2.3 Switching components 11 4.3 Current-limiting components 11 4.3.1 General . 11 4.3.2 Current-interrupting components 11 4.3.3 Current-reducing components. 11 4.3.4 Current-diverting components . 11 5 Parameters for se

33、lection of SPDs and appropriate tests from IEC 61643-21 12 5.1 General . 12 5.2 Normal service conditions . 12 5.2.1 General . 12 5.2.2 Air pressure and altitude 12 5.2.3 Ambient temperature 12 5.2.4 Relative humidity . 12 5.2.5 Abnormal service conditions . 12 5.3 SPD parameters that may affect nor

34、mal system operation 12 6 Risk management 13 6.1 General . 13 6.2 Risk analysis . 14 6.3 Risk identification 14 6.4 Risk treatment . 14 7 Application of SPDs . 16 7.1 General . 16 7.2 Coupling mechanisms . 16 7.3 Application, selection and installation of surge protective devices (SPDs) . 18 7.3.1 A

35、pplication requirements for SPDs . 18 7.3.2 SPD installation cabling considerations 22 7.3.3 Comparison between SPD classification of IEC 61643-11 and IEC 61643-21 . 25 8 Multiservice surge protective devices . 25 9 Coordination of SPDs/ITE 28 Annex A (informative) Voltage-limiting components 29 A.1

36、 Clamping components . 29 A.1.1 General . 29 A.1.2 Metal oxide varistor (MOV) . 29 PD CLCTS 61643-22:2015PD CLC/TS 61643-22:2016IEC 61643-22:2015 IEC 2015 3 7910101011111111111112121212121212131313131313131313141415151517171719192326262930303030IEC 61643-22:2015 IEC 2015 3 A.1.3 Silicon semi-conduct

37、ors . 29 A.2 Switching components . 31 A.2.1 General . 31 A.2.2 Gas discharge tube (GDT) 31 A.2.3 Air gaps . 31 A.2.4 Thyristor surge suppressor (TSS) Fixed voltage types (self-gating) 32 A.2.5 Thyristor surge suppressor (TSS) Gated types . 32 Annex B (informative) Current-limiting components . 33 B

38、.1 General . 33 B.2 Non-resetting current limiters 33 B.2.1 General . 33 B.2.2 Series current-interrupting components 33 B.2.3 Shunt current-diverting limiters . 34 B.3 Self-resetting current limiters . 36 B.3.1 General . 36 B.3.2 Series current-reducing components . 36 B.3.3 Shunt current-diverting

39、 components . 38 Annex C (informative) Risk management 39 C.1 Risk due to lightning discharges 39 C.1.1 Risk assessment 39 C.1.2 Risk analysis 39 C.1.3 Risk treatment . 41 C.2 Risk due to power line faults 42 C.2.1 General . 42 C.2.2 AC power systems . 42 C.2.3 DC power systems . 42 Annex D (informa

40、tive) Transmission characteristics related to IT systems . 44 D.1 General . 44 D.2 Telecommunications systems 44 D.3 Signalling, measurement and control systems 45 D.4 Cable TV systems . 45 Annex E (informative) Coordination of SPDs/ITE 46 E.1 General . 46 E.2 Determination of UINand IIN. 46 E.3 Det

41、ermine the output protective voltage and current waveforms for SPD1 47 E.4 Compare SPD1 and SPD2 values 47 E.5 Necessity of verification of the coordination by testing . 48 Annex F (informative) Protection of Ethernet systems . 49 F.1 Power over Ethernet (PoE) 49 F.2 Withstand capabilities and SPD c

42、oordination . 50 F.3 Common mode to differential mode surge conversion by switching devices 50 F.3.1 General . 50 F.3.2 Differential mode voltage reduction by inter-wire protection . 51 F.3.3 Differential mode voltage reduction by single switching element 52 Annex G (informative) EMC impact of SPDs

43、. 54 G.1 General . 54 G.2 Electromagnetic immunity 54 G.3 Electromagnetic emission 54 PD CLCTS 61643-22:2015 4 IEC 61643-22:2015 IEC 2015 Annex H (informative) Definition of internal port (Source: ITU-T K.44) . 55 Annex I (informative) Maintenance of SPDs for Information Technology 56 I.1 General re

44、quirements 56 I.2 Maintenance responsibilities 56 I.3 Maintenance of SPDs 56 I.3.1 General . 56 I.3.2 Visual inspection 57 I.3.3 Complete inspection . 57 I.3.4 Examining periods . 57 Annex J (informative) Earth potential rise (EPR) . 59 J.1 General . 59 J.2 Causes of EPR . 59 J.3 Influence of soil r

45、esistivity . 59 J.4 Fibre optics . 59 Annex K (informative) References and examples of risk management based on IEC 62305-2 60 Bibliography . 61 Figure 1 SPD installation in telecommunications and signalling networks 15 Figure 2 Measurement and Control network (MCR) . 15 Figure 3 Coupling mechanisms

46、 17 Figure 4 Example of a configuration of the lightning protection concept . 19 Figure 5 Example of a configuration according to the zones (Figure 4) 20 Figure 6 Example of protection measures against common-mode voltages and differential mode voltages of the data (f) and supply voltage input (g) o

47、f an ITE . 21 Figure 7 Influence of voltages UL1 andUL2on protection level UPcaused by inductance of the leads . 22 Figure 8 Removal of the voltages UL1and UL2from the protector unit by connecting leads to a common point . 23 Figure 9 Necessary installation conditions of a three, five or multi-termi

48、nal SPD with an ITE for minimizing the interference influences on the protection level 24 Figure 10 Individual SPDs 26 Figure 11 MSPD with PE connection option 26 Figure 12 MSPD with transient bonding SPCs to PE terminals 27 Figure 13 Coordination of two SPDs . 28 Figure A.1 Behaviour of clamping co

49、mponents . 29 Figure A.2 Behaviour of switching components . 31 Figure B.1 Behaviour of current interrupting components 33 Figure B.2 Behaviour of current-diverting component 34 Figure B.3 Thermally operated (heat coil) three-terminal shunt current limiter 35 Figure B.4 Behaviour of current-reducing components (thermally operated type) . 36 Figure B.5 Thermally operated (PTC thermistor) two-terminal series current limiting component 37 Figure B.6 Two-terminal series