1、 IEC 60898-2 Edition 2.0 2016-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrical accessories Circuit-breakers for overcurrent protection for household and similar installations Part 2: Circuit-breakers for AC and DC operation Petit appareillage Disjoncteurs pour la protection contre les surin
2、tensits pour installations domestiques et analogues Partie 2: Disjoncteurs pour le fonctionnement en courant alternatif et en courant continu IEC 60898-2:2016-08(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no
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20、 STANDARD NORME INTERNATIONALE Electrical accessories Circuit-breakers for overcurrent protection for household and similar installations Part 2: Circuit-breakers for AC and DC operation Petit appareillage Disjoncteurs pour la protection contre les surintensits pour installations domestiques et anal
21、ogues Partie 2: Disjoncteurs pour le fonctionnement en courant alternatif et en courant continu INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.120.50 ISBN 978-2-8322-3553-9 Registered trademark of the International Electrotechnical Commission Marque dpose
22、 de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60898-2:2016 IEC 2016 CONTENTS FOREWORD. 3 1 Scope 5 2 Normat
23、ive references 5 3 Terms and definitions 5 4 Classification . 5 5 Characteristics of circuit-breakers 6 6 Marking and other product information . 7 7 Standard conditions for operation in service . 8 8 Requirements for construction and operation 8 9 Tests . 9 Annexes . 16 Annex C (normative) Test seq
24、uences and number of samples. 16 Figure 6 Calibration of the test circuit . 14 Figure 18 Methods of connection of the circuit-breakers in different DC systems . 15 Table 1 Preferred values of rated voltage . 7 Table 2 Ranges of instantaneous tripping . 7 Table 7 Time-current operating characteristic
25、s . 9 Table C.1 Test sequences 16 Table C.2 Number of samples for full test procedure . 18 IEC 60898-2:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL ACCESSORIES CIRCUIT-BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS Part 2: Circuit-breakers for A
26、C and DC operation FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning sta
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35、ng out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is d
36、rawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60898-2 has been prepared by subcommittee 23E: Circuit- breakers and similar equi
37、pment for household use, of IEC technical committee 23: Electrical accessories. This second edition cancels and replaces the first edition published in 2000 and Amendment 1:2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with res
38、pect to the previous edition: a) alignment with second edition of IEC 60898-1; b) introduction of test I cn1 . 4 IEC 60898-2:2016 IEC 2016 The text of this standard is based on the following documents: FDIS Report on voting 23E/951A/FDIS 23E/976/RVD Full information on the voting for the approval of
39、 this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60898 series, published under the general title Electrical accessories Circuit-breakers for overcurren
40、t protection for household and similar installations, can be found on the IEC website. This Part 2 is to be used in conjunction with IEC 60898-1. Where a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as far as is reasonable. Where this Part 2 states “addition
41、 “deletion” or “replacement”, the corresponding requirement, test specification or explanatory material in Part 1 should be adapted accordingly. In this standard, the following print types are used: Requirements proper: in roman type. Test specifications: in italic type. Explanatory matter: in sma
42、ller roman type. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, re
43、placed by a revised edition, or amended. IEC 60898-2:2016 IEC 2016 5 ELECTRICAL ACCESSORIES CIRCUIT-BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS Part 2: Circuit-breakers for AC and DC operation 1 Scope Clause 1 of IEC 60898-1:2015 is applicable except as follows: Addit
44、ion at the end of the first paragraph: This standard gives additional requirements for single- and two-pole circuit-breakers which, in addition to the above characteristics, are suitable for operation with direct current, and have a rated DC voltage not exceeding 220 V for single-pole and 440 V for
45、two-pole circuit-breakers, a rated current not exceeding 125 A and a rated DC short-circuit capacity not exceeding 10 000 A. NOTE This standard applies to circuit-breakers able to make and break both alternating current and direct current. Delete the last two paragraphs. 2 Normative references Claus
46、e 2 of IEC 60898-1:2015 is applicable except as follows: Addition: IEC 60898-1:2015, Electrical accessories Circuit-breakers for overcurrent protection for household and similar installations Part 1: Circuit-breakers for a.c. operation 3 Terms and definitions Clause 3 of IEC 60898-1:2015 is applicab
47、le except as follows: Addition: 3.5.10.3 time constant T rise time of a prospective direct current to reach a value of 0,63 times the maximum peak current T = L/R (ms) 4 Classification Clause 4 of IEC 60898-1:2015 is applicable except as follows: 6 IEC 60898-2:2016 IEC 2016 4.2 According to the numb
48、er of poles: Replacement: single-pole circuit-breakers; two-pole circuit-breakers with two protected poles. 4.6 According to the instantaneous tripping current (see 3.5.17) Delete D-Type. Addition: 4.8 According to the time constant circuit-breakers suitable for DC circuits with a time constant of T
49、 4 ms; circuit-breakers suitable for DC circuits with a time constant of T 15 ms. NOTE It is assumed that short-circuit currents of 1 500 A are not exceeded in installations in which, due to the loads connected, time constants in normal service up to 15 ms can occur. Where higher short-circuit currents can occur, the time constant of T = 4 ms is considered sufficient. 5 Characteristics of circ
