1、 IEC 62640 Edition 1.0 2011-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Residual current devices with or without overcurrent protection for socket-outlets for household and similar uses Dispositifs courant diffrentiel rsiduel avec ou sans protection contre les surintensits pour les socles de pris
2、es de courant destins des installations domestiques et analogues IEC62640:2011 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elect
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16、cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62640 Edition 1.0 2011-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Residual current devices with or without overcurrent protection
17、 for socket-outlets for household and similar uses Dispositifs courant diffrentiel rsiduel avec ou sans protection contre les surintensits pour les socles de prises de courant destins des installations domestiques et analogues INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INT
18、ERNATIONALE XF ICS 29.120.50 PRICE CODE CODE PRIX ISBN 978-2-88912-325-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 62640 IEC:2011 CONTENTS FOREWORD . 9 INTRODUCTION . 11 1 Scope . 12 2 Normative references .
19、13 3 Terms and definitions . 14 3.1 Definitions relating to currents flowing from live parts to earth . 14 3.2 Definitions relating to the energization of a residual current device . 15 3.3 Definitions relating to the operation and functions of the residual current device . 15 3.4 Definitions relati
20、ng to values and ranges of energizing quantities 17 3.5 Definitions relating to values and ranges of influencing quantities . 19 3.6 Definitions relating to conditions of operation 20 3.7 Definitions relating to tests 21 3.8 Definitions relating to residual current devices in general 21 4 Classifica
21、tion 21 4.1 Classification according to behaviour resulting from failure of the line voltage . 22 4.1.1 SRCD not opening automatically in case of failure of the line voltage 22 4.1.2 SRCD opening automatically in case of failure of the line voltage 22 4.2 Classification according to the design 22 4.
22、2.1 SRCD consisting of an RCD incorporated in (a) fixed socket-outlet(s) . 22 4.2.2 SRCD consisting of an RCD intended to be associated with fixed socket-outlets within the same mounting box or within two adjacent compatible boxes. 22 4.2.3 SRCD consisting of an RCD incorporated in a connection unit
23、 intended to protect only one piece of fixed electrical equipment (e.g. hand dryer, water cooler, etc.) immediately adjacent to the SRCD . 22 4.3 Classification according to behaviour in presence of d.c. components . 22 4.4 Classification according to the provision for earthing . 22 4.5 Classificati
24、on according to the design of the cover plate 22 4.6 Classification according to the method of mounting . 22 4.7 Classification according to the environmental conditions . 23 4.7.1 Classification according to the degree of protection against ingress of solid foreign objects 23 4.7.2 Classification a
25、ccording to the degree of protection against harmful ingress of water . 23 4.7.3 Classification according to the range of ambient air temperature . 23 4.8 Classification according to the type of terminals 23 4.9 Classification according to overcurrent protection 23 5 Characteristics of SRCDs . 23 5.
26、1 Summary of characteristics . 23 5.2 Characteristics common to all socket-outlet residual current devices . 24 5.2.1 Rated current (In) 24 5.2.2 Rated residual operating current (In) 24 5.2.3 Rated residual non-operating current (Ino) . 24 5.2.4 Rated voltage (Un) . 24 5.2.5 Rated frequency 24 5.2.
27、6 Rated residual making and breaking capacity (Im) 24 62640 IEC:2011 3 5.2.7 Operating characteristics in case of residual current 24 5.3 Characteristics specific to SRCDs with overcurrent protection (see 4.9) 25 5.3.1 SRCDs classified according to 4.9 a), 4.9 b) and 4.9 c) 1) . 25 5.3.2 Rated short
28、-circuit capacity (Icn) for SRCD classified according to 4.9 c) 2) 26 5.4 Preferred or standard values . 26 5.4.1 Preferred values of rated voltage (Un) . 26 5.4.2 Standard values of rated current (In) 26 5.4.3 Standard values of rated residual operating current (In) . 26 5.4.4 Standard value of rat
29、ed residual non-operating current (Ino) 26 5.4.5 Standard values of rated frequency . 26 5.4.6 Standard values of the rated making and breaking capacity (Im) 26 5.4.7 Standard values of the rated residual making and breaking capacity (Im) 27 5.4.8 Standard values of the rated conditional short-circu
30、it current (Inc) . 27 5.4.9 Standard values of the rated conditional residual short-circuit current (Ic) . 27 5.4.10 Standard values of the rated short-circuit capacity (Icn) . 27 5.4.11 Standard values of break time . 27 5.5 Standard ranges of overcurrent instantaneous tripping for SRCDs to 4.9 c)
31、2). 28 6 Marking and other product information 28 6.1 General . 28 6.2 Additional marking for screwless terminals 30 6.3 Additional marking for SRCDs with an FE connection 30 7 Standard conditions for operation in service and for installation 30 8 Requirements for construction and operation 31 8.1 G
32、eneral . 31 8.2 Information and marking 31 8.3 Mechanical and electrical design . 31 8.3.1 Mechanism 31 8.3.2 Clearance and creepage distances 32 8.3.3 Standing current in the FE . 34 8.3.4 Screws, current-carrying parts and connections . 34 8.3.5 Terminals 35 8.4 Operating characteristics . 35 8.4.
33、1 Operation in response to the type of residual current . 35 8.4.2 Operation in response to the presence of a residual current equal to or greater than In. 36 8.5 Behaviour of SRCDs with feed through terminals in case of miswiring . 36 8.6 Test device 36 8.7 Temperature rise . 36 8.8 Resistance to h
34、umidity 37 8.9 Dielectric properties 37 8.10 EMC compliance and unwanted tripping 37 8.10.1 EMC 37 8.10.2 Resistance against unwanted tripping due to current surges caused by impulse voltages for SRCDs of In 0,010 A 37 8.11 Behaviour of SRCDs in case of overcurrent conditions 37 8.11.1 For all SRCDs
35、 . 37 4 62640 IEC:2011 8.11.2 Behaviour of SRCDs classified according to 4.9 c) in case of overcurrent conditions . 38 8.11.3 Standard time-(over)current zone for SRCD according to 4.9 c) 1) and 4.9 c) 2) 38 8.12 Resistance of the insulation against impulse voltages . 39 8.13 Mechanical and electric
36、al endurance . 39 8.14 Resistance to mechanical shock 39 8.15 Reliability 39 8.16 Protection against electric shock and degree of protection IP of the SRCD 39 8.16.1 Inaccessibility of live parts . 40 8.16.2 Accessible knobs, operating means etc. 40 8.16.3 Accessible parts of SRCDs . 40 8.16.4 Degre
37、e of protection IP of the SRCD 41 8.17 Resistance to heat 41 8.18 Resistance to abnormal heat and to fire 41 8.19 Behaviour of SRCDs within ambient temperature range . 41 8.20 Resistance to temporary overvoltages . 41 9 Tests 42 9.1 General . 42 9.1.1 Test conditions 42 9.1.2 Characteristics of SRCD
38、s 42 9.2 Marking and test of indelibility of marking 43 9.3 Verification of the trip-free mechanism 43 9.3.1 General test conditions 43 9.3.2 Test procedure 44 9.4 Test for the verification of electronic circuits 44 9.5 Requirements for capacitors and specific resistors and inductors 45 9.5.1 Capaci
39、tors . 45 9.5.2 Resistors and inductors . 45 9.6 Test of reliability of screws, current-carrying parts and connections 47 9.7 Screwed and screwless terminals 47 9.7.1 Screwed terminals for external copper conductors . 47 9.7.2 Screwless terminals for external copper conductors 53 9.8 Verification of
40、 the operating characteristics of type AC and type A SRCDs 59 9.8.1 Test circuit 59 9.8.2 Verification of behaviour in the case of supply voltage failure 60 9.8.3 Off-load tests with residual sinusoidal alternating currents at the reference temperature of (20 5) C . 60 9.8.4 Verification of the corr
41、ect operation with load at the reference temperature . 61 9.8.5 Verification of the correct operation at the temperature limits with and without load . 61 9.8.6 Additional tests for SRCDs fitted with an FE 62 9.8.7 Verification of correct operation of type A SRCDs with residual currents having a d.c
42、. component 63 9.9 Verification of behaviour of SRCDs classified according to 4.2.1 b) in the case of miswiring . 64 9.10 Verification of the test device 64 9.10.1 Verification of the simulated residual current . 64 9.10.2 Verification of the operation of the test device . 64 62640 IEC:2011 5 9.11 V
43、erification of the limit of temperature rise 65 9.11.1 Test conditions 65 9.11.2 Ambient air temperature 65 9.11.3 Test procedure 66 9.11.4 Measurement of the temperature rise of different parts 66 9.12 Resistance to humidity 66 9.12.1 Preparation of the SRCD for test . 66 9.12.2 Test conditions 66
44、9.12.3 Test procedure 66 9.12.4 Condition of the SRCD after the test 67 9.13 Test of dielectric properties . 67 9.13.1 Insulation resistance of the main circuit . 67 9.13.2 Dielectric strength of the main circuit . 67 9.13.3 Capability of withstanding high d.c. voltages due to insulation measurement
45、s . 68 9.14 EMC compliance and unwanted tripping 68 9.14.1 Electromagnetic compatibility (EMC) . 68 9.14.2 Verification of resistance against unwanted tripping due to surge currents to earth resulting from impulse voltages for SRCDs of In 0,010 A (ring wave test) . 69 9.15 Verification of the behavi
46、our of the SRCD under overcurrent conditions 69 9.15.1 List of the overcurrent tests . 69 9.15.2 Short-circuit tests 70 9.15.3 Verification of the making and breaking capacity of the socket-outlet of the SRCD, classified according to 4.2.1 . 76 9.16 Verification of clearances of the SRCD with the im
47、pulse withstand voltage test 77 9.17 Mechanical and electrical endurance . 78 9.17.1 Normal operation of socket-outlets of the SRCD 78 9.17.2 Test of the RCD part of the SRCD . 78 9.18 Resistance to mechanical shock 80 9.18.1 General . 80 9.18.2 Impact test apparatus 80 9.18.3 Surface type SRCD . 83
48、 9.18.4 Screwed glands . 84 9.18.5 Shuttered SRCDs 84 9.19 Reliability 84 9.19.1 Climatic test 85 9.19.2 Test with temperature of 40 C 86 9.20 Protection against electric shock and degree of protection IP of the SRCD 87 9.20.1 Protection against electric shock . 87 9.20.2 Degree of protection IP of
49、the SRCD . 88 9.21 Resistance to heat 88 9.21.1 General . 88 9.21.2 Conditioning 88 9.21.3 External parts of SRCDs 88 9.21.4 External Insulating parts 89 9.22 Resistance to abnormal heat and to fire Glow-wire test 89 9.23 SRCDs with overcurrent protection 90 6 62640 IEC:2011 9.23.1 Verification of the operating characteristic under overcurrent conditions 90 9.23.2 Short-circuit tests for SRCDs according to 4.9 c) 2) . 91 9.23.3 Condition of
