1、BSI Standards PublicationBS ISO 10924-3:2015Road vehicles CircuitbreakersPart 3: Miniature circuit breakers with tabs(Blade type), Form CB11BS ISO 10924-3:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 10924-3:2015.The UK participation in its preparation
2、was entrusted to TechnicalCommittee AUE/32, Electrical and electronic components andgeneral system aspects (Road vehicles).A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a co
3、ntract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 77252 8ICS 43.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the aut
4、hority of theStandards Policy and Strategy Committee on 30 April 2015.Amendments issued since publicationDate Text affectedBS ISO 10924-3:2015 ISO 2015Road vehicles Circuit breakers Part 3: Miniature circuit breakers with tabs (Blade type), Form CB11Vhicules routier Coupe circuites Partie 3: Coupe c
5、ircuits miniatures avec languette (type languette), Forme CB11INTERNATIONAL STANDARDISO10924-3First edition2015-04-01Reference numberISO 10924-3:2015(E)BS ISO 10924-3:2015ISO 10924-3:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015All rights reserved. Unless otherwise spec
6、ified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or I
7、SOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 10924-3:2015ISO 10924-3:2015(E)Foreword iv1 Scope . 12 Normative references 13 Terms an
8、d definitions . 14 Marking, labelling, and colour coding 15 Tests and requirements 25.1 General . 25.1.1 General test conditions . 25.1.2 Test sequence plan . 25.1.3 Test cable sizes 35.2 Voltage drop 45.2.1 Purpose 45.2.2 Tests 45.2.3 Requirements . 45.3 Maximum housing temperature 45.4 Environment
9、al conditions . 45.5 Operating time-rating . 45.5.1 Purpose 45.5.2 Tests 45.5.3 Requirements . 45.6 Current steps 55.7 No current trip and reset temperature 55.8 Absolute breaking capacity 55.8.1 Tests 55.8.2 Requirements . 55.9 Breaking capacity . 55.9.1 Tests 55.9.2 Requirements . 65.10 Strength o
10、f terminals . 65.11 Endurance . 65.11.1 Tests 65.11.2 Requirements . 65.12 Dielectric strength 75.12.1 Tests 75.12.2 Requirement 76 Dimensions and designation examples 76.1 Dimensions . 76.2 Designation examples . 76.2.1 Category B 76.2.2 Category C 86.2.3 Category D . 86.2.4 Category F and G 96.2.5
11、 Category H . 9Bibliography .11 ISO 2015 All rights reserved iiiContents PageBS ISO 10924-3:2015ISO 10924-3:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standard
12、s is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take
13、part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In parti
14、cular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of th
15、is document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www
16、.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the
17、 WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information .The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electric and electronic equipment.ISO 10924 consists of the following parts, under the gene
18、ral title Road vehicles Circuit breakers: Part 1: Definitions and general test requirements Part 2: Users guide Part 3: Miniature circuit breakers with tabs (Blade type), Form CB11 Part 4: Medium circuit breakers with tabs (Blade type), Form CB15 Part 5: Circuit breakers with tabs with rated voltage
19、 of 450 Viv ISO 2015 All rights reservedBS ISO 10924-3:2015Road vehicles Circuit breakers Part 3: Miniature circuit breakers with tabs (Blade type), Form CB111 ScopeThis part of ISO 10924 specifies miniature circuit breakers with tabs (blade-type), Form CB11 for use in road vehicles. It establishes,
20、 for this circuit breaker form, the rated current, test procedures, performance requirements and dimensions.This part of ISO 10924 is intended to be used in conjunction with ISO 10924-1 and with ISO 10924-2. The numbering of its clauses corresponds to that of ISO 10924-1 whose requirements are appli
21、cable, except where modified by requirements particular to this part of ISO 10924.This part of ISO 10924 is applicable to circuit breakers with a rated voltage of 14 V and/or 28 V, a current rating of 30 A and a breaking capacity of 2 000 A intended for use in road vehicles with a nominal voltage of
22、 12 V and/or 24 V.The circuit breakers are different in dimensions and functions, such as electrically reset, automatic reset, manual reset, and switchable.NOTE This type of circuit breaker is intended to be used in similar applications as miniature fuse-links according to ISO 8820-3. While the tab
23、dimensions and current ratings can be the same, there might be differences in performance which the user of these products is advised to consider.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
24、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 6722-1, Road vehicles 60 V and 600 V single-core cables Part 1: Dimensions, test methods and requirements for copper conductor cablesISO
25、 8820-3, Road vehicles Fuse-links Part 3: Fuse-links with tabs (blade type) Type C (medium), Type E (high current) and Type F (miniature)ISO 10924-1, Road vehicles Circuit breakers Part 1: Definitions and general test requirementsISO 16750-4, Road vehicles Environmental conditions and testing for el
26、ectrical and electronic equipment Part 4: Climatic loads3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 10924-1 apply.4 Marking, labelling, and colour codingSee ISO 10924-1 and Table 1.INTERNATIONAL STANDARD ISO 10924-3:2015(E) ISO 2015 All rights res
27、erved 1BS ISO 10924-3:2015ISO 10924-3:2015(E)Table 1 Colour codeRated current IRAColour code5 Tan/Light brown7,5 Brown10 Red15 Blue20 Yellow25 White30 Green5 Tests and requirements5.1 General5.1.1 General test conditionsIn addition to carrying out the test procedures in accordance with ISO 10924-1,
28、the following criteria shall apply. Tests shall be performed following the test sequences in Table 2. The test fixture for electrical tests shall be designed in accordance with Type F as shown in ISO 8820-3. The connection resistance shall be 0,8 m max to ensure the proper function of the test fixtu
29、re. The ambient temperature range for circuit breakers according to this part of ISO 10924 shall be: (40 to 85) C, Code G (according to ISO 16750-4).5.1.2 Test sequence planTable 2 Test sequence planNo Test ClauseSample groupsa1 2 3 4 5 6 71 Dimensions 6 X X X 2 Marking, labelling and colour coding
30、4 X X X X X X X3 Operating time rating 2,0 IR5.5 X X X X X X X4 Current steps 5.6 X 5 Voltage drop 5.2 X X X X X X X6 Maximum housing temperature 5.3 X 7 No current trip and reset temperature 5.7 X 8 Strength of terminals 5.10 X X X NOTE “” means not required.aFive circuit breakers for each rated cu
31、rrent rating per sample group.2 ISO 2015 All rights reservedBS ISO 10924-3:2015ISO 10924-3:2015(E)No Test ClauseSample groupsa1 2 3 4 5 6 79Environmental conditionsClimatic loads5.4 X 10 Chemical loads X 11Mechanical loadsVibration X Shock X Free Fall X 12 Absolute breaking capacity 5.8 X 13 Breakin
32、g capacity 5.9 X 14 Endurance 5.11 X X X 15 Operating time rating0,7 IR5.5 X X X1,1 IR X X X1,35 IR X X X1,6 IR X2,0 IR X X X X X X3,5 IR X6,0 IR X X X X16 Voltage drop 5.2 X X X X X X17 Maximum housing temperature 5.3 X 18 Dielectric strength 5.12 X X X X X X 19 Strength of terminals 5.10 X X X X X
33、 X X20 Marking, labelling and colour coding 4 X X X X X X XNOTE “” means not required.aFive circuit breakers for each rated current rating per sample group.5.1.3 Test cable sizesTest cable sizes shall be as given in Table 3. All tests for a particular circuit breaker rating shall be performed using
34、the same cable size.Test cable sizes are specified to allow comparative circuit breaker tests to be carried out. The cable size specified herein does not necessarily indicate the size of cable to be used in the vehicle application.Table 3 Test cable sizesRated current IRAConductor cross-sectional ar
35、eaamm2Length mm5 0,50500 507,5 0,7510 1,015 1,5202,52530 4,0aConductor material according to ISO 6722-1.Table 2 (continued) ISO 2015 All rights reserved 3BS ISO 10924-3:2015ISO 10924-3:2015(E)5.2 Voltage drop5.2.1 PurposeSee ISO 10924-1.5.2.2 TestsThe circuit breaker voltage drop shall be measured a
36、t points A and B across the circuit breaker tabs at 0,7 IRas shown in ISO 8820-3.5.2.3 RequirementsThe requirements given in Table 4 shall apply.Table 4 Voltage dropRated current IRAmax. voltage drop UDmV5 2007,51501015201302530 1205.3 Maximum housing temperatureThe tests and requirements specified
37、in ISO 10924-1 shall apply. The subsequent tests in Table 2 shall be passed.5.4 Environmental conditionsThe tests of ISO 10924-1 shall apply.5.5 Operating time-rating5.5.1 PurposeSee ISO 10924-1.5.5.2 TestsThe test of ISO 10924-1 shall apply.5.5.3 RequirementsThe requirements given in Table 5 shall
38、apply.4 ISO 2015 All rights reservedBS ISO 10924-3:2015ISO 10924-3:2015(E)Table 5 Operating timesTest current AOperating time sCategoryB C DF G HFastbStandardmin. max. min. max. min. max.0,7 IR3 600 3 600 3 600 IR9,0 3 600 3 600 1,1 IR6,0 500 40 3 600 60 1,35 IR3,0 74 12 1 800 45 1 8001,6 IR1,9 37 6
39、,0 170 20 2002 IR1,1 18 3,0 40 5 603,5 IR0,3 3,9 0,8 6,0 0 5,06 IRa0,1 1,1 0,2 1,6 0 2,0aIf the rated breaking capacity is lower than the test current, the value of the rated breaking capacity is valid.bOperating time similar to fuse Type.5.6 Current stepsThe test and requirements of ISO 10924-1 sha
40、ll apply.5.7 No current trip and reset temperatureThe test and requirements of ISO 10924-1 shall apply.5.8 Absolute breaking capacity5.8.1 TestsThe tests as described in ISO 10924-1 shall apply. The circuit breakers shall be tested at 2 000 A.5.8.2 RequirementsThe requirements as in ISO 10924-1 shal
41、l apply.5.9 Breaking capacity5.9.1 TestsThe tests given in ISO 10924-1 shall apply. The circuit breakers in accordance with this part of ISO 10924 shall be tested to the values specified in Table 6, for a nominal voltage, UNof 12 V or 24 V. ISO 2015 All rights reserved 5BS ISO 10924-3:2015ISO 10924-
42、3:2015(E)Table 6 Breaking capacityCurrent ratingUN12 V 24 V5 A to 10 A 150 A 100 A10 A to 15 A 225 A 150 A15 A to 20 A 300 A 200 A20 A to 30 A 450 A 300 A5.9.2 RequirementsThe requirements of Table 2 and the tests specified in ISO 109241 shall apply.5.10 Strength of terminalsThe test and requirement
43、s as given in ISO 8820-3 for Type F (miniature) fuse-links shall apply.5.11 Endurance5.11.1 TestsThe tests and cycling profiles as given in ISO 10924-1 shall apply; the minimum number of cycles is shown in Table 7.Table 7 EnduranceFunction TypeTest cur-rentACyclesaCategoryB C D F G HAutomatic reset
44、I 4,0 IR 50b50b Electrically reset II 4,0 IR 30 + 30c 30 + 30cManual reset III 4,0 IR100 100 100Switchable IV 1,0 IR50 + 250d NOTE “” means not required.aCycles for type II, type III, and type IV circuit breakers. Minutes for type I circuit breakers. See ISO 10924-1.bCircuit breaker shall be cycled
45、for 30 min, the minimum number of cycles shall be 50. Following the 30 min of cycling, perform a voltage drop test (see ISO 10924-1). After the voltage drop test cycle, the circuit breaker for additional 4 h. It shall be acceptable, if the results of the endurance test are such, that the device is r
46、endered inoperable, but is otherwise intact as described in the appropriate part of this International Standard.cAfter the first 30 cycles, allow the circuit breaker to cool down to re-close the circuit and repeat the test for another 30 cycles (see ISO 10924-1).dAfter the first 50 electrical loaded
47、 cycles with IR, add 250 mechanical cycles.5.11.2 RequirementsSee ISO 10924-16 ISO 2015 All rights reservedBS ISO 10924-3:2015ISO 10924-3:2015(E)5.12 Dielectric strength5.12.1 TestsThe circuit breaker shall be measured in OFF-position at points A and B as shown in ISO 8820-3. The test voltage amount
48、s to (500 10) V for 6006+()s.5.12.2 RequirementFor types I, III, and IV, flashover shall not occur and the leakage current shall not exceed 15 mA. Type II is not applicable.6 Dimensions and designation examples6.1 DimensionsSee Table 8. For all not specified tab dimensions, ISO 8820-3, Type F (miniature fuse-links) shall apply.All mounting dimensions as specified in the Figure 1 to 5 shall apply. Other dimensions may be defined by the supplier.6.2 Designation examples6.2.1 Category BKey1 space for button2 direction for movement of switchable levera“
