1、BS ISO 8820-4:2016Road vehicles Fuse-linksPart 4: Fuse-links with female contacts (typeA) and bolt-in contacts (type B) and theirtest fixturesBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 8820-4:2016 BRITISH STANDARDNational forewordThis British Standard is
2、the UK implementation of ISO 8820-4:2016. It supersedes BS ISO 8820-4:2010 which is withdrawn. The UK participation in its preparation was entrusted to TechnicalCommittee AUE/16, Data Communication (Road Vehicles).A list of organizations represented on this committee can beobtained on request to its
3、 secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 88184 8ICS 43.040.10Compliance with a British Standard ca
4、nnot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2016.Amendments/Corrigenda issued since publicationDate Text affectedBS ISO 8820-4:2016 ISO 2016Road vehicles Fuse-links Part 4: Fuse-links
5、with female contacts (type A) and bolt-in contacts (type B) and their test fixturesVhicules routiers Liaisons fusibles Partie 4: Liaisons fusibles avec contacts femelles (type A) et contacts boulonns (type B) et leurs montages dessaiINTERNATIONAL STANDARDISO8820-4Third edition2016-11-15Reference num
6、berISO 8820-4:2016(E)BS ISO 8820-4:2016ISO 8820-4:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, ele
7、ctronic 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 ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Verni
8、er, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 8820-4:2016ISO 8820-4:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Marking, labelling and colour coding . 15 Tests and requirements 25.1 General . 25.2 Test sequence
9、 . 45.3 Test cable sizes 55.4 Voltage drop 55.4.1 Tests 55.4.2 Requirements . 55.5 Transient current cycling . 65.5.1 Test . 65.5.2 Requirements . 65.6 Environmental condition . 75.7 Operating time-rating . 75.7.1 Test . 75.7.2 Requirements . 75.8 Current steps 85.8.1 Test . 85.8.2 Requirements . 85
10、.9 Breaking capacity . 85.9.1 Test . 85.9.2 Requirements . 85.10 Strength of terminals . 85.10.1 Test for fuse-links of types A1, A1S, A2, A3 and A4 . 85.10.2 Requirements . 95.10.3 Test for fuse-links of types B1 and B2 . 95.10.4 Requirements . 95.11 Temperature rise . 95.11.1 Test . 95.11.2 Requir
11、ements 105.12 Rapid change of temperature with specified transition duration .106 Dimensions 106.1 Fuse-links types A1, A2 and A3 . 106.2 Fuse-links types A1S and A4 116.3 Fuse-links types B1 and B2 . 126.4 Designation . 137 Test fixtures 147.1 Test fixture for fuse-links types A1, A1S, A2, A3 and A
12、4 147.2 Test fixture for fuse-links type B1 . 157.3 Test fixture for fuse-links type B2 . 16Annex A (informative) Tab dimensions for fuse-boxes 17Bibliography .18 ISO 2016 All rights reserved iiiContents PageBS ISO 8820-4:2016ISO 8820-4:2016(E)ForewordISO (the International Organization for Standard
13、ization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards 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
14、be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used
15、to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular 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
16、the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this 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 d
17、uring the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.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 m
18、eaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this
19、 document is ISO/TC 22, Road vehicles, Subcommittee SC 32, Electrical and electronic components and general system aspects.This third edition cancels and replaces the second edition (ISO 8820-4:2010), which has been technically revised.A list of all parts in the ISO 8820 series can be found on the I
20、SO website.iv ISO 2016 All rights reservedBS ISO 8820-4:2016INTERNATIONAL STANDARD ISO 8820-4:2016(E)Road vehicles Fuse-links Part 4: Fuse-links with female contacts (type A) and bolt-in contacts (type B) and their test fixtures1 ScopeThis document specifies fuse-links with female contacts (type A)
21、and bolt-in contacts (type B) for use in road vehicles. It establishes, for these fuse-link types, the rated current, test procedures, performance requirements and dimensions.This document is applicable to fuse-links with a rated voltage of 32 V or 58 V, a current rating 140 A and a breaking capacit
22、y of 1 000 A intended for road vehicles.This document is intended to be used in conjunction with ISO 8820-1 and with ISO 8820-2. The numbering of its clauses corresponds to that of ISO 8820-1 whose requirements are applicable, except where modified by requirements particular to this document.2 Norma
23、tive referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any ame
24、ndments) applies.ISO 8820-1, Road vehicles Fuse-links Part 1: Definitions and general test requirements3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8820-1 apply.ISO and IEC maintain terminological databases for use in standardization at the followi
25、ng addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 Marking, labelling and colour codingSee ISO 8820-1 and Table 1. ISO 2016 All rights reserved 1BS ISO 8820-4:2016ISO 8820-4:2016(E)Table 1 Fuse-link colour coding
26、Fuse rating AColour15 Grey20 Light blue25 White30 Pink35 Dark green40 Green50 Red60 Yellow70 Brown80 Black100 Blue120 White140 Red-brown5 Tests and requirements5.1 GeneralIn addition to carrying out the test procedures in accordance with ISO 8820-1, the following criteria shall be observed.Tests sha
27、ll be performed following the test sequences in Table 2.The test fixtures for electrical tests (see Annex A) shall be designed in accordance with Figure 1. The connection resistance shall be for type A 1,0 m and for type B 0,35 m to ensure the proper functioning of the test fixture.Fuse-links in acc
28、ordance with this document shall provide for visible evidence of an open fuse element.For measuring the contact resistance of type A, the body of the fuse-link may require modification or resistance of the fuse element should be subtracted from the one of whole fuse (see Figure 1, points labelled “1
29、”).2 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E)Dimensions in millimetresa) Test fixture for types A1, A1S, A2, A3 and A4b) Test fixture for type B1c) Test fixture for type B2Key1 measuring points for the voltage drop (see 7.1, 7.2 and 7.3)2 test fixture3 cable size according to
30、 Table 3Figure 1 Test schematic ISO 2016 All rights reserved 3BS ISO 8820-4:2016ISO 8820-4:2016(E)5.2 Test sequenceTable 2 Test sequenceNo. Test(Sub-) ClauseSample groupsa1 2 3 4 5 6 7 81 Dimensions Clause 6 X X X 2 Marking, labelling and colour coding Clause 4 X X X X X X X X3 Fuse-link voltage dro
31、p 5.4 X X X 4 Strength of terminals 5.10 X X X 5Environmental conditionsClimatic load5.6 X Chemical load X Mechanical load X 6 Transient current cycling 5.5 X 7 Temperature rise 5.11 X8Rapid change of temperature with specified transition duration5.12 X9 Fuse-link voltage drop 5.4 X X X X X10 Curren
32、t steps 5.8 X 11 Breaking capacity 5.9 X 12Operating time-rating test1,1 IR5.7 X X X X X 1,35 IRor 1,5 IR Y Y Y Y Y 2,0 IR Y Y Y Y Y 3,5 IR Y Y Y Y Y 6,0 IR Y Y Y Y Y 13 Strength of terminals 5.10 X X X X X X X XaEach sample group shall contain a minimum of eight fuse-links.Y For these operating tim
33、e tests, the sample groups 2, 4, 5, 6 and 7 shall be divided equally. These fuses are intended to be subjected to a single operating time test only. Not required.4 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E)5.3 Test cable sizesTest cable sizes shall be as shown in Tables 3. All
34、tests for a particular fuse-link rating shall be performed using the same cable size.Test cable sizes are specified to allow comparative fuse-link tests to be carried out. The cable size specified does not necessarily indicate the size of cable to be used in the vehicle application.Table 3 Test cabl
35、e sizesFuse-link rating AType A1, A1S, A2, A4Type A3 Type BConductor cross-sectional areaamm2Length mmType A Type BI II I II15 X1,52,0 500 5020 X25 X2,530 X X3,04,0 3,035 X 4,040 X X5,0 6,0 5,050 X X X6,060 X X X70 X 10,080 X X 10,0100X16,0 15,0120 X140 X 25,0 20,0aConductor material in accordance w
36、ith ISO 6722-1.5.4 Voltage drop5.4.1 TestsThe voltage drop Uabshall be measured at points labelled “1” across the fuse-link tabs as shown in Figure 1.5.4.2 RequirementsSee Table 4. ISO 2016 All rights reserved 5BS ISO 8820-4:2016ISO 8820-4:2016(E)Table 4 Fuse-link voltage dropFuse-link rating AMaxim
37、um voltage drop mVA1, A1S, A4 A2, A3 B1, B215 20 125 180 25 30 180 1403512040 180 1305016060 11570 80 160 120100 120 1405.5 Transient current cycling5.5.1 TestSee Figure 2 and ISO 8820-1. At an elapsed time of 0,25 s on-time, the current shall fall to a value between 1,25 IRand 1,35 IR. During the f
38、irst 10 s of each cycle, the steady state current shall never fall below 0,5 IR.5.5.2 RequirementsSee ISO 8820-1.6 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E)KeyX time in secondsY rated currenta One cycle.Figure 2 Transient current cycling5.6 Environmental conditionSee ISO 8820-
39、1.5.7 Operating time-rating5.7.1 TestSee ISO 8820-1.5.7.2 RequirementsSee Table 5.Table 5 Operating timesTest current AOperating times sA1, A1S, A4 A2, A3 B1, B2min. max. min. max. min. max.1,10 IR14 400 14 400 14 400 1,35 IR60 1 800 1,50 IR 30 3 600 30 3 6002,0 IR2 60 5 100 5 1003,5 IR0,2 7 0,2 7 0
40、,2 76,0 IR0,04 1 0,04 1 0,04 1 ISO 2016 All rights reserved 7BS ISO 8820-4:2016ISO 8820-4:2016(E)5.8 Current steps5.8.1 TestSee ISO 8820-1.5.8.2 RequirementsSee ISO 8820-1.5.9 Breaking capacity5.9.1 TestSee ISO 8820-1.Test at 1 000 A with cable sizes as shown in Table 3.5.9.2 RequirementsSee ISO 882
41、0-1.After the test, the current through the fuse-link shall not exceed 0,5 mA at the rated voltage.5.10 Strength of terminals5.10.1 Test for fuse-links of types A1, A1S, A2, A3 and A4The following force (see Table 6) shall be applied sequentially to each terminal of the fuse-link as shown in Figure
42、3.Table 6 ForcesFuse-link type Force in NA1, A1S, A4 50 1A260 1A38 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E)KeyF forceFigure 3 Strength of terminals5.10.2 RequirementsAfter the test, the insulator shall be intact and the terminals shall not be bent and/or removed from the insu
43、lator.5.10.3 Test for fuse-links of types B1 and B2Install the fuse-links in the test fixture with the mounting torque according to Table 7. This test is performed without cables and terminals.Table 7 Mounting torque and bolt sizeFuse-link typeMounting torque N.mBolt sizeB1 6 1 M6B2 4,5 1 M5NOTE For
44、 mounting in the vehicle, the specific procedure (greasing, surface materials, surface roughness, etc.) has to be agreed upon between the fuse manufacturer, the fuse-box manufacturer and the vehicle manufacturer.5.10.4 RequirementsFuse-links shall remain physically intact.5.11 Temperature rise5.11.1
45、 TestThe temperature rise shall be measured at the temperature-rise measuring point in the standard test fixtures as shown in Figures 8, 9 and 10 after supplying a current equal to 0,50 IRafter the temperature is stabilized. ISO 2016 All rights reserved 9BS ISO 8820-4:2016ISO 8820-4:2016(E)5.11.2 Re
46、quirementsSee Table 8.Table 8 Temperature riseFuse-link rating ATemperature rise C1520253035 504050607080100701201405.12 Rapid change of temperature with specified transition durationSee ISO 16750-4.The test temperature shall be code J and the temperature holding time is 20 min.Perform the test for
47、48 cycles.6 Dimensions6.1 Fuse-links types A1, A2 and A3See Figure 4 and Table 9.10 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E)Figure 4 Fuse-link with female contacts A1, A2 and A36.2 Fuse-links types A1S and A4See Figure 5 and Table 9.Dimensions in millimetresKey1 represents op
48、tional featureFigure 5 Fuse-link with female contacts A1S and A4 ISO 2016 All rights reserved 11BS ISO 8820-4:2016ISO 8820-4:2016(E)Table 9 Fuse-links with female contacts A1, A1S, A2, A3 and A4Dimensions in millimetresDimen-sionA1 A1S A2 A3 A4Value Tolerance Value Tolerance Value Tolerance Value Tolerance Value Tolerancea 13,45 1,15 13,45 1,15 22,0 0,5 22,25 0,75 10,7 0,3b 11,75 0,75 11,75 0,75 15,2 0,5 15,25 0,55 7,0 1,1c 11,85 0,35 11,85 0,35 15,7 0,5 18,55 0,25 9,65 0,2d 9,8 0,3 9,8 0,3 12,5 0,5 13,6 0,3 6,15 0,2e 5,5 0,1 5,5 0,1 9,0 0,2 12,4 0,1 4,6 0
