1、Protection against electric shock Common aspects forinstallation and equipmentBS EN 61140:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 61140:2016. It is identical to IEC 61140:2016. It super
2、sedes BS EN 61140:2002+A1:2006 whichis withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee JPEL/64, Electrical installations of buildings - Joint committee.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publicat
3、ion does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 81329 0ICS 13.260; 29.020; 91.140.50Compliance with a British Standard cannot con
4、fer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61140:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM E
5、N 61140 May 2016 ICS 13.260; 29.020; 91.140.50 Supersedes EN 61140:2002 English Version Protection against electric shock - Common aspects for installation and equipment (IEC 61140:2016) Protection contre les chocs lectriques - Aspects communs aux installations et aux matriels (IEC 61140:2016) Schut
6、z gegen elektrischen Schlag - Gemeinsame Anforderungen fr Anlagen und Betriebsmittel (IEC 61140:2016) This European Standard was approved by CENELEC on 2016-02-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European St
7、andard 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 exists in three official versions (
8、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 national electrotechnical committee
9、s of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, 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, Slove
10、nia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European 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 r
11、ights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61140:2016 E BS EN 61140:2016EN 61140:2016 2 European foreword The text of document 64/2076/FDIS, future edition 4 of IEC 61140, prepared by IEC/TC 64 “Electrical installations and protection again
12、st electric shock“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61140:2016. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-11-27 lat
13、est date by which the national standards conflicting with the document have to be withdrawn (dow) 2019-05-27 This document supersedes EN 61140:2002. 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 h
14、eld 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. Endorsement notice The text of the International Standard IEC 61140:2016 was approved by CENELEC as a Eu
15、ropean Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60364-4-41:2005 NOTE Harmonized as HD 60364-4-41:2007 (modified). IEC 60364-4-44:2007 NOTE Harmonized as HD 60364-4-442:2012 (modified) and as HD
16、 60364-4-444:2010 (modified). IEC 60364-6:2006 NOTE Harmonized as HD 60364-6:2007 (modified). IEC 60601-1 NOTE Harmonized as EN 60601-1. IEC 61558-2-6 NOTE Harmonized as EN 61558-2-6. IEC 61936-1 NOTE Harmonized as EN 61936-1. BS EN 61140:2016EN 61140:2016 3 Annex ZA (normative) Normative references
17、 to international publications with their corresponding European publications 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
18、edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this ann
19、ex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60038 - IEC standard voltages EN 60038 - IEC 60068 series Environmental testing EN 60068 series IEC 60071-1 - Insulation co-ordination - Part 1: Definitions, principles and rules EN 60071-1 - IEC 60071-2 - Insulation co-ordi
20、nation - Part 2: Application guide EN 60071-2 - IEC 60364-5-54 2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors HD 60364-5-54 2011 IEC 60417 - Graphical symbols for use on equipment - - IEC 60445 -
21、 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors EN 60445 - IEC/TS 60479-1 2005 Effects of current on human beings and livestock - Part 1: General aspects - - IEC/TR 60479-5 - Effects of
22、current on human beings and livestock - Part 5: Touch voltage threshold values for physiological effects - - IEC 60529 - Degrees of protection provided by enclosures (IP Code) EN 60529 - IEC 60664 series Insulation coordination for equipment within low-voltage systems EN 60664 series IEC 60664-1 200
23、7 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests EN 60664-1 2007 BS EN 61140:2016EN 61140:2016 4 Publication Year Title EN/HD Year IEC 60721 series Classification of environmental conditions EN 60721 series IEC 60990 - Methods of measure
24、ment of touch current and protective conductor current EN 60990 - IEC/TS 61201 2007 Use of conventional touch voltage limits - Application guide - - IEC 62271-102 - High-voltage switchgear and controlgear - Part 102: Alternating current disconnectors and earthing switches EN 62271-102 - IEC Guide 10
25、4 - The preparation of safety publications and the use of basic safety publications and group safety publications - - ISO/IEC Guide 51 2014 Safety aspects - Guidelines for their inclusion in standards - - BS EN 61140:2016 2 IEC 61140:2016 IEC 2016 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative referenc
26、es 7 3 Terms and definitions 8 4 Fundamental rule of protection against electric shock 18 4.1 General . 18 4.2 Normal conditions . 19 4.3 Single-fault conditions . 20 4.3.1 General . 20 4.3.2 Protection by independent protective provisions 20 4.3.3 Protection by an enhanced protective provision . 20
27、 4.4 Additional protection . 20 4.5 Protection against electric burns . 21 4.6 Protection against physiological effects without adverse health effect . 21 4.6.1 General . 21 4.6.2 Muscular reaction 21 4.6.3 Effects of touch current of discharge of electrostatic charges . 22 4.6.4 Thermal effects 22
28、5 Protective provisions (elements of protective measures) 22 5.1 General . 22 5.2 Provisions for basic protection 22 5.2.1 General . 22 5.2.2 Basic insulation . 22 5.2.3 Protective barriers or enclosures . 23 5.2.4 Obstacles 23 5.2.5 Placing out of arms reach . 23 5.2.6 Limitation of voltage 24 5.2.
29、7 Limitation of steady-state touch current and energy . 24 5.2.8 Potential grading . 25 5.2.9 Other provisions for basic protection 25 5.3 Provisions for fault protection 25 5.3.1 General . 25 5.3.2 Supplementary insulation . 25 5.3.3 Protective-equipotential-bonding 25 5.3.4 Protective screening 27
30、 5.3.5 Indication and disconnection in high-voltage installations and systems 27 5.3.6 Automatic disconnection of supply . 27 5.3.7 Simple separation (between circuits) . 28 5.3.8 Non-conducting environment . 28 5.3.9 Potential grading . 28 5.3.10 Other provisions for fault protection . 28 5.4 Enhan
31、ced protective provisions. 28 5.4.1 General . 28 5.4.2 Reinforced insulation . 29 5.4.3 Protective separation between circuits . 29 5.4.4 Limited current source . 29 BS EN 61140:2016IEC 61140:2016 IEC 2016 3 5.4.5 Protective impedance device . 29 5.4.6 Other provisions for enhanced protection . 30 5
32、.5 Provisions for additional protection . 30 5.5.1 Additional protection by residual current protective device (RCD) In 30 mA . 30 5.5.2 Additional protection by supplementary equipotential bonding . 30 6 Protective measures 30 6.1 General . 30 6.2 Protection by automatic disconnection of supply . 3
33、1 6.3 Protection by double or reinforced insulation . 31 6.4 Protection by protective equipotential bonding 31 6.5 Protection by electrical separation 31 6.6 Protection by non-conducting environment (low-voltage) . 31 6.7 Protection by SELV system . 32 6.8 Protection by PELV system . 32 6.9 Protecti
34、on by limitation of steady-state touch current and charge 32 6.10 Additional protection . 32 6.10.1 Additional protection by residual current protective device (RCD) In 30 mA . 32 6.10.2 Additional protection by supplementary protective equipotential bonding . 32 6.11 Protection by other measures .
35、33 7 Co-ordination between electrical equipment and protective provisions within an electrical installation 33 7.1 General . 33 7.2 Class 0 equipment 33 7.3 Class I equipment . 34 7.3.1 General . 34 7.3.2 Insulation . 34 7.3.3 Connection to the protective conductor 34 7.3.4 Accessible surfaces of pa
36、rts of insulating material . 34 7.3.5 Connection of a protective conductor . 35 7.4 Class II equipment 35 7.4.1 General . 35 7.4.2 Insulation . 35 7.4.3 Protective bonding . 36 7.4.4 Marking . 36 7.5 Class III equipment . 36 7.5.1 General . 36 7.5.2 Voltages 36 7.5.3 Protective bonding . 37 7.5.4 Ma
37、rking . 37 7.6 Touch currents, protective conductor currents . 37 7.6.1 General . 37 7.6.2 Touch currents 37 7.6.3 Protective conductor currents 37 7.6.4 Other requirements 39 7.6.5 Other effects 39 7.7 Safety and boundary clearances and hazard marking for high-voltage installations 39 BS EN 61140:2
38、016 4 IEC 61140:2016 IEC 2016 7.8 Functional earthing . 40 8 Special operating and servicing conditions 40 8.1 General . 40 8.2 Devices to be operated manually and components intended to be replaced manually . 40 8.2.1 General . 40 8.2.2 Devices to be operated or components intended to be replaced b
39、y ordinary persons in low-voltage installations, systems and equipment . 40 8.2.3 Devices to be operated or components intended to be replaced by skilled or instructed persons 41 8.3 Electrical values after isolation 41 8.4 Devices for isolation 42 8.4.1 General . 42 8.4.2 Devices for isolation for
40、low voltage . 42 8.4.3 Devices for isolation for high voltage . 43 Annex A (informative) Survey of protective measures as implemented by protective provisions . 45 Annex B (informative) Index of terms . 48 Annex C (informative) List of notes concerning certain countries . 53 Bibliography 54 Figure A
41、.1 Protective measures with basic and fault protection 45 Figure A.2 Protective measures with limited values of electrical quantities . 46 Figure A.3 Protective measure: additional protection (in addition to basic and/or fault protection) 47 Table 1 Limits for voltage bands 19 Table 2 Touch voltage
42、thresholds for reaction 21 Table 3 Application of equipment in a low-voltage installation 33 Table 4 Maximum protective conductor current for frequencies up to 1 kHz . 38 Table 5 Maximum protective conductor current for DC . 38 Table 6 Minimum impulse withstand voltage of devices for isolation relat
43、ed to the nominal voltage 43 BS EN 61140:2016IEC 61140:2016 IEC 2016 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PROTECTION AGAINST ELECTRIC SHOCK COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardi
44、zation comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes Interna
45、tional Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate i
46、n this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
47、 two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have
48、 the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misin
49、terpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity ass
