1、BS ISO 8820-4:2016 Road vehicles Fuse-links Part 4: Fuse-links with female contacts (type A) and bolt-in contacts (type B) and their test fixtures BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 8820-4:2016 BRITISH STANDARD National foreword This British Stan
2、dard is 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 It supersedes BS ISO 8820-4:2010 which is withdrawn.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 Technical Committee AUE/16, Data Communication (Road Vehicles). A list of organizations represented on this committee can be obtained on req
3、uest to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 88184 8 ICS 43.040.10 Compliance with a Br
4、itish Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016. Amendments/Corrigenda issued since publication Date Text affectedBS ISO 8820-4:2016 ISO 2016 Road vehicles Fuse-li
5、nks Part 4: Fuse-links with female contacts (type A) and bolt-in contacts (type B) and their test fixtures Vhicules routiers Liaisons fusibles Partie 4: Liaisons fusibles avec contacts femelles (type A) et contacts boulonns (type B) et leurs montages dessai INTERNATIONAL STANDARD ISO 8820-4 Third ed
6、ition 2016-11-15 Reference number ISO 8820-4:2016(E)BS ISO 8820-4:2016ISO 8820-4:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise
7、 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 ISOs member body in the country of the requester. ISO copyright office Ch.
8、de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 8820-4:2016ISO 8820-4:2016(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 1 4 Marking, labelling and colour coding . 1 5 Tests and r
9、equirements 2 5.1 General . 2 5.2 Test sequence . 4 5.3 Test cable sizes 5 5.4 Voltage drop 5 5.4.1 Tests 5 5.4.2 Requirements . 5 5.5 Transient current cycling . 6 5.5.1 Test . 6 5.5.2 Requirements . 6 5.6 Environmental condition . 7 5.7 Operating time-rating . 7 5.7.1 Test . 7 5.7.2 Requirements .
10、 7 5.8 Current steps 8 5.8.1 Test . 8 5.8.2 Requirements . 8 5.9 Breaking capacity . 8 5.9.1 Test . 8 5.9.2 Requirements . 8 5.10 Strength of terminals . 8 5.10.1 Test for fuse-links of types A1, A1S, A2, A3 and A4 . 8 5.10.2 Requirements . 9 5.10.3 Test for fuse-links of types B1 and B2 . 9 5.10.4
11、Requirements . 9 5.11 Temperature rise . 9 5.11.1 Test . 9 5.11.2 Requirements 10 5.12 Rapid change of temperature with specified transition duration .10 6 Dimensions 10 6.1 Fuse-links types A1, A2 and A3 .10 6.2 Fuse-links types A1S and A4 11 6.3 Fuse-links types B1 and B2 .12 6.4 Designation .13 7
12、 Test fixtures 14 7.1 Test fixture for fuse-links types A1, A1S, A2, A3 and A4 14 7.2 Test fixture for fuse-links type B1 .15 7.3 Test fixture for fuse-links type B2 .16 Annex A (informative) Tab dimensions for fuse-boxes 17 Bibliography .18 ISO 2016 All rights reserved iii Contents PageBS ISO 8820-
13、4:2016ISO 8820-4:2016(E) Foreword ISO (the International Organization for Standardization) 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 i
14、n 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 part in the work. ISO collaborates closely with the International Electrotechnical Commis
15、sion (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 particular the different approval criteria needed for the different types of ISO documents sh
16、ould 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 this document may be the subject of patent rights. ISO shall not be held responsible for
17、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.iso.org/patents). Any trade name used in this document is information given for the co
18、nvenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformit y assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT)
19、see the following URL: www.iso.org/iso/foreword.html. The committee responsible for this 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
20、been technically revised. A list of all parts in the ISO 8820 series can be found on the ISO website.iv ISO 2016 All rights reservedBS ISO 8820-4:2016INTERNATIONAL ST ANDARD 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
21、 their test fixtures 1 Scope This document specifies fuse-links with female contacts (type A) 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
22、 fuse-links with a rated voltage of 32 V or 58 V, a current rating 140 A and a breaking capacity 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 requir
23、ements are applicable, except where modified by requirements particular to this document. 2 Normative references The 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
24、 applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8820-1, Road vehicles Fuse-links Part 1: Definitions and general test requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO
25、 8820-1 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available at http:/ /www.iso.org/obp 4 Marking, labelling and colour coding See ISO 8820-1 an
26、d Table 1. ISO 2016 All rights reserved 1BS ISO 8820-4:2016ISO 8820-4:2016(E) Table 1 Fuse-link colour coding Fuse rating A Colour 15 Grey 20 Light blue 25 White 30 Pink 35 Dark green 40 Green 50 Red 60 Yellow 70 Brown 80 Black 100 Blue 120 White 140 Red-brown 5 Tests and requirements 5.1 General In
27、 addition to carrying out the test procedures in accordance with ISO 8820-1, the following criteria shall be observed. Tests shall 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
28、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 accordance 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 requi
29、re modification or resistance of the fuse element should be subtracted from the one of whole fuse (see Figure 1, points labelled “1”).2 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E) Dimensions in millimetres a) Test fixture for types A1, A1S, A2, A3 and A4 b) Test fixture for type
30、 B1 c) Test fixture for type B2 Key 1 measuring points for the voltage drop (see 7.1, 7.2 and 7.3) 2 test fixture 3 cable size according to Table 3 Figure 1 Test schematic ISO 2016 All rights reserved 3BS ISO 8820-4:2016ISO 8820-4:2016(E) 5.2 Test sequence Table 2 Test sequence No. Test (Sub-) Claus
31、e Sample groups a 1 2 3 4 5 6 7 8 1 Dimensions Clause 6 X X X 2 Marking, labelling and colour coding Clause 4 X X X X X X X X 3 Fuse-link voltage drop 5.4 X X X 4 Strength of terminals 5.10 X X X 5 Environmental conditions Climatic load 5.6 X Chemical load X Mechanical load X 6 Transient current cyc
32、ling 5.5 X 7 Temperature rise 5.11 X 8 Rapid change of temperature with specified transition duration 5.12 X 9 Fuse-link voltage drop 5.4 X X X X X 10 Current steps 5.8 X 11 Breaking capacity 5.9 X 12 Operating time-rating test 1,1 I R 5.7 X X X X X 1,35 I Ror 1,5 I R Y Y Y Y Y 2,0 I R Y Y Y Y Y 3,5
33、 I R Y Y Y Y Y 6,0 I R Y Y Y Y Y 13 Strength of terminals 5.10 X X X X X X X X aEach sample group shall contain a minimum of eight fuse-links. Y For these operating time 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
34、 time test only. Not required.4 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E) 5.3 Test cable sizes Test cable sizes shall be as shown in Tables 3. All tests for a particular fuse-link rating shall be performed using the same cable size. Test cable sizes are specified to allow comp
35、arative 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 cable sizes Fuse-link rating A Type A1, A1S, A2, A4 Type A3 Type B Conductor cross-sectional area amm 2 Length mm Type A Type B I II
36、 I II 15 X 1,5 2,0 500 50 20 X 25 X 2,5 30 X X 3,0 4,0 3,0 35 X 4,0 40 X X 5,0 6,0 5,0 50 X X X 6,0 60 X X X 70 X 10,0 80 X X 10,0 100 X 16,0 15,0 120 X 140 X 25,0 20,0 aConductor material in accordance with ISO 6722-1. 5.4 Voltage drop 5.4.1 Tests The voltage drop U abshall be measured at points la
37、belled “1” across the fuse-link tabs as shown in Figure 1. 5.4.2 Requirements See Table 4. ISO 2016 All rights reserved 5BS ISO 8820-4:2016ISO 8820-4:2016(E) Table 4 Fuse-link voltage drop Fuse-link rating A Maximum voltage drop mV A1, A1S, A4 A2, A3 B1, B2 15 20 125 180 25 30 180 140 35 120 40 180
38、130 50 160 60 115 70 80 160 120 100 120 140 5.5 Transient current cycling 5.5.1 Test See 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 I Rand 1,35 I R . During the first 10 s of each cycle, the steady state current shall never fall belo
39、w 0,5 I R . 5.5.2 Requirements See ISO 8820-1.6 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E) Key X time in seconds Y rated current a One cycle. Figure 2 Transient current cycling 5.6 Environmental condition See ISO 8820-1. 5.7 Operating time-rating 5.7.1 Test See ISO 8820-1. 5.7.
40、2 Requirements See Table 5. Table 5 Operating times Test current A Operating times s A1, A1S, A4 A2, A3 B1, B2 min. max. min. max. min. max. 1,10 I R 14 400 14 400 14 400 1,35 I R 60 1 800 1,50 I R 30 3 600 30 3 600 2,0 I R 2 60 5 100 5 100 3,5 I R 0,2 7 0,2 7 0,2 7 6,0 I R 0,04 1 0,04 1 0,04 1 ISO
41、2016 All rights reserved 7BS ISO 8820-4:2016ISO 8820-4:2016(E) 5.8 Current steps 5.8.1 Test See ISO 8820-1. 5.8.2 Requirements See ISO 8820-1. 5.9 Breaking capacity 5.9.1 Test See ISO 8820-1. Test at 1 000 A with cable sizes as shown in Table 3. 5.9.2 Requirements See ISO 8820-1. After the test, the
42、 current through the fuse-link shall not exceed 0,5 mA at the rated voltage. 5.10 Strength of terminals 5.10.1 Test for fuse-links of types A1, A1S, A2, A3 and A4 The following force (see Table 6) shall be applied sequentially to each terminal of the fuse-link as shown in Figure 3. Table 6 Forces Fu
43、se-link type Force in N A1, A1S, A4 50 1 A2 60 1 A38 ISO 2016 All rights reservedBS ISO 8820-4:2016ISO 8820-4:2016(E) Key F force Figure 3 Strength of terminals 5.10.2 Requirements After the test, the insulator shall be intact and the terminals shall not be bent and/or removed from the insulator. 5.
44、10.3 Test for fuse-links of types B1 and B2 Install 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 size Fuse-link type Mounting torque N . m Bolt size B1 6 1 M6 B2 4,5 1 M5 NOTE F
45、or 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 Requirements Fuse-links shall remain physically intact. 5.11 Temperature rise
46、5.11.1 Test The 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 I Rafter the temperature is stabilized. ISO 2016 All rights reserved 9BS ISO 8820-4:2016ISO 8820-4:2016(E)
47、5.11.2 Requirements See Table 8. Table 8 Temperature rise Fuse-link rating A Temperature rise C 15 20 25 30 35 50 40 50 60 70 80 100 70 120 140 5.12 Rapid change of temperature with specified transition duration See ISO 16750-4. The test temperature shall be code J and the temperature holding time i
48、s 20 min. Perform the test for 48 cycles. 6 Dimensions 6.1 Fuse-links types A1, A2 and A3 See 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 A3 6.2 Fuse-links types A1S and A4 See Figure 5 and Table 9. Dimensions in millimetres Key 1 represents optional feature Figure 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 A4 Dimen
