1、BSI Standards Publication BS ISO 8820-10:2015 Road vehicles Fuse-links Part 10: Fuse-links with tabs Type L (high current miniature)BS ISO 8820-10:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 8820-10:2015. The UK participation in its preparation was e
2、ntrusted to Technical Committee AUE/16, Data Communication (Road Vehicles). A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correc
3、t application. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 79723 1 ICS 43.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and St
4、rategy Committee on 31 March 2015. Amendments/corrigenda issued since publication Date T e x t a f f e c t e d ISO 2015 Road vehicles Fuse-links Part 10: Fuse-links with tabs Type L (high current miniature) Vhicules routiers Liaisons fusibles Partie 10: Liaisons fusibles languette (type plat) type L
5、 (courant fort miniature) INTERNATIONAL STANDARD ISO 8820-10 First edition 2015-03-15 Reference number ISO 8820-10:2015(E)BS ISO 8820-10:2015ISO 8820-10:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015 All rights reserved. Unless otherwise specified, no part of this publi
6、cation 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 ISOs member body in the count
7、ry of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 8820-10:2015ISO 8820-10:2015(E) ISO 2015 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Nor
8、mative references 1 3 T erms and definitions . 1 4 Marking, labelling, and colour coding 1 5 Tests and requirements 2 5.1 General . 2 5.2 Test sequence . 2 5.3 Test cable sizes 2 5.4 Voltage drop 3 5.5 Transient current cycling . 5 5.6 Environmental conditions . 5 5.7 Operating time rating 6 5.8 Cur
9、rent steps 6 5.9 Breaking capacity . 6 5.10 Strength of terminals . 7 5.11 Temperature rise . 8 6 Dimensions . 9 6.1 Designation example .10 Annex A (informative) Temperature rise test 11 Bibliography .12BS ISO 8820-10:2015ISO 8820-10:2015(E) Foreword ISO (the International Organization for Standard
10、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
11、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
12、 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
13、 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
14、 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 convenience of users and does not constitute an endorsement. For an explanation on t
15、he meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO
16、/TC 22, Road vehicles, Subcommittee SC 32, Electrical and electronic components and general system aspects. ISO 8820 consists of the following parts, under the general title Road vehicles Fuse-links: Part 1: Definitions and general test requirements Part 2: User guidelines Part 3: Fuse-links with ta
17、bs (blade type) Type C (medium), Type E (high current) and Type F (miniature) Part 4: Fuse-links with female contacts (type A) and bolt-in contacts (type B) and their test fixtures Part 5: Fuse links with axial terminals (Strip fuse-links) Types SF 30 and SF 51 and test fixtures Part 6: Single-bolt
18、fuse-links Part 7: Fuse-links with tabs (Type G) with rated voltage of 450 V Part 8: Fuse-links with bolt-in contacts (Type H and J) with rated voltage of 450 V Part 9: Fuse-links with shortened tabs (Type K) Part 10: Fuse-links with tabs Type L (high current miniature)iv ISO 2015 All rights reserve
19、dBS ISO 8820-10:2015INTERNATIONAL ST ANDARD ISO 8820-10:2015(E) Road vehicles Fuse-links Part 10: Fuse-links with tabs Type L (high current miniature) 1 Scope This part of ISO 8820 specifies fuse-links with tabs (blade type) Type L (high current miniature) for use in road vehicles. It establishes, f
20、or this fuse-link type, the rated current, test procedures, performance requirements, and dimensions. This part of ISO 8820 is applicable for fuse-links with a rated voltage of 32 V, a current rating of 60 A, and a breaking capacity of 1 000 A intended for use in road vehicles. This part of ISO 8820
21、 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 part of ISO 8820. 2 Normative references The following documents, in
22、whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8820-1, Road vehicles Fuse-link
23、s Part 1: Definitions and general test requirements ISO 8820-2, Road vehicles Fuse-links Part 2: User guidelines 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 8820-1 apply. 4 Marking, labelling, and colour coding See ISO 8820-1 and Table 1. Tabl
24、e 1 Fuse-link colour coding Current rating A Colour 20 yellow 25 white 30 green 35 dark green 40 orange 50 red 60 blue ISO 2015 All rights reserved 1BS ISO 8820-10:2015ISO 8820-10:2015(E) 5 Tests and requirements 5.1 General In addition to carrying out the test procedures in accordance with ISO 8820
25、-1, the following criteria shall apply. Tests shall be performed following the test sequences in Table 2. The test fixtures for electrical tests shall be designed in accordance with Figure 1. The connection resistance shall be a maximum of 0,5 m for Type L (high current miniature) to ensure the prop
26、er function of the test fixture. Fuse-links according to this part of ISO 8820 shall provide for visible evidence of an open fuse element. 5.2 Test sequence Table 2 Test sequence No Test Clause Sample groups 1 2 3 4 5 6 7 1 Dimensions 6 X X X 2 Marking, labelling, and colour coding 4 X X X X X X X 3
27、 Fuse-link voltage drop 5.2 X X X 4 Strength of terminals 5.8 X X X 5 Environmental conditions Climatic load 5.4 X 6 Chemical load X 7 Mechanical load X 8 Transient current cycling 5.3 X 9 Fuse-link voltage drop 5.2 X X X X 10 Current steps 5.6 X 11 Breaking capacity 5.7 X 12 Operating time rating t
28、est I R a 5.5 X X X X X 1,35 I R Y Y Y Y Y 1,60 I R Y Y Y Y Y 2,00 I R Y Y Y Y Y 3,50 I R Y Y Y Y Y 6,00 I R Y Y Y Y Y 13 Strength of terminals 5.8 X X X X X X X Each sample group shall contain a minimum of 10 fuse-links for each rated current rating. For the operating time rating tests marked “Y”,
29、the sample groups 2, 4, 5, 6, and 7 shall be divided equally. These fuse-links are intended to be subjected to a single operating time rating test only. NOTE A dash () indicates that the test is not required. aNot required for 60 A fuse-link. 5.3 Test cable sizes Test cable sizes shall be as given i
30、n Table 3. All tests for a particular fuse-link rating shall be performed using the same cable size.2 ISO 2015 All rights reservedBS ISO 8820-10:2015ISO 8820-10:2015(E) Test cable sizes are specified to allow comparative fuse-link tests to be carried out. The cable size specified herein does not nec
31、essarily indicate the size of cable to be used in the vehicle application. Table 3 Test cable sizes Rated current, I RA Conductor cross-sectional area mm 2 Length mm 20 1,5 500 50 25 2,5 30 35 4,0 40 50 6,0 60 aConductor material according to ISO 6722-1. 5.4 Voltage drop 5.4.1 Tests The voltage drop
32、, U AB,shall be measured at points A and B across the fuse-link tabs as shown in Figure 1. ISO 2015 All rights reserved 3BS ISO 8820-10:2015ISO 8820-10:2015(E) 5 4 3 D B C A 2 1 F E Key 1 fuse-link 2 test fixture 3 fuse blade 4 test clip (cantilevered contact system, receptacle to accept tabs as def
33、ined in Table 7) 5 cable size according to Table 3 E (1,5 0,5) mm F (15,5 1) mm NOTE Points A and B are the measuring points for the voltage drop. Points A, C, B, and D are the measuring points for connection resistance. Figure 1 Test schematic 5.4.2 Requirements See Table 4.4 ISO 2015 All rights re
34、servedBS ISO 8820-10:2015ISO 8820-10:2015(E) Table 4 Voltage drop Fuse rating A Maximum voltage drop, U ABmV 20 125 25 30 120 35 40 50 60 5.5 Transient current cycling 5.5.1 Test See Figure 2 and ISO 8820-1. At an elapsed time of 0,025 s on-time, the current shall fall to a value between 1,65 I Rand
35、 2,5 I R . At no time during the first 4,5 s of each cycle the steady-state current shall fall below 0,9 I R . a b 30 4,5 0,1 0,025 2,5 IR 1,65 IR 0,9 IR Y X Key X time, s Y current a One cycle. b (5,6 6) I Rfor I R 5 A. Figure 2 Transient current cycling 5.5.2 Requirements See ISO 8820-1. 5.6 Envir
36、onmental conditions See ISO 8820-1. ISO 2015 All rights reserved 5BS ISO 8820-10:2015ISO 8820-10:2015(E) 5.7 Operating time rating 5.7.1 Test See ISO 8820-1. For I R,the test duration is 100 h. 5.7.2 Requirement See Table 5. After activation, the current through the fuse-link shall not exceed 0,5 mA
37、 at the rated voltage of the fuse-link. Table 5 Operating times Test current A Operating time smin max I R 360 000 1,35 I R 60 300 1,6 I R 10 70 2,0 I R 2 30 3,5 I R 0,2 7,0 6 I R 0,04 1,0 5.8 Current steps 5.8.1 Test See ISO 8820-1. 5.8.2 Requirement See ISO 8820-1. After activation, the current th
38、rough the fuse-link shall not exceed 0,5 mA at the rated voltage of the fuse-link. 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. Use appropriate test dummy according to Figure 3.6 ISO 2015 All rights reservedBS ISO 8820-10:2015ISO 8820-10:2015
39、(E) Dimensions in millimetres Where not specified in the figure, the common tolerances shall be in accordance with tolerance class m as specified in ISO 2768-1. Figure 3 Test dummy for Type L fuse-links 5.9.2 Requirement See ISO 8820-1. After the test, the current through the fuse-link shall not exc
40、eed 0,5 mA at the rated voltage of the fuse- link. 5.10 Strength of terminals Table 6 Terminal forces F 1N F 2N F 3N 70 1 15 1 7,5 1 ISO 2015 All rights reserved 7BS ISO 8820-10:2015ISO 8820-10:2015(E) F2 F3 F2 F3 F1 NOTE The arrows indicate the directions of applied forces, F 1 F 3 . Figure 4 Appli
41、cation of forces 5.10.1 Test A force (F 1 F 3 ) shall be applied to each of the tabs of the fuse-link in accordance with Figure 4. The force shall be held for 2 s. The test force shall not be applied abruptly. 5.10.2 Requirements The deformation of the test sample shall not exceed 0,5 mm. After the
42、test, the insulator shall be intact and the terminals shall not be removed from the insulator. 5.11 Temperature rise See Annex A.8 ISO 2015 All rights reservedBS ISO 8820-10:2015ISO 8820-10:2015(E) 6 Dimensions Dimensions in millimetres Key t 2 taper Figure 5 Fuse-link Type L ISO 2015 All rights res
43、erved 9BS ISO 8820-10:2015ISO 8820-10:2015(E) Table 7 Dimensions of fuse-links with tabs, Type L Dimension Value Tolerance l 1 16,2 0,3 l 2 10,6 0,3 l 4 15,45 0,3 l 5 6,3 0,2 l 6 4,3 0,5 b 1 5 0,3 b 2 6,5 0,3 b 3 0,82 +0,05 0,04 b 4 0,6 0,2 b 5 0,6 max h 1 11,5 0,3 h 2 8,5 +0 0,5 h 4 1 0,5 6.1 Desig
44、nation example Designation of a fuse-link Type L in accordance with this part of ISO 8820 for a nominal current of 30 A: Fuse-link ISO 8820 - L 3010 ISO 2015 All rights reservedBS ISO 8820-10:2015ISO 8820-10:2015(E) Annex A (informative) Temperature rise test A.1 Test The test shall be carried out u
45、sing fuse-links, fuse holders, and connections as specified by the vehicle manufacturer. Test cable sizes shall be in accordance with Table 3. The test shall be performed in an oven with a test current of 0,7 I Rat an ambient temperature of 60 C. The temperature shall be measured at the point the fu
46、se-link terminals protrude from the base of the insulator using thermocouples as specified by the vehicle manufacturer (see Figure A.1). 2 1 Key 1 test points 2 test fixture Figure A.1 Temperature rise test setup A.2 Requirement After thermal equilibrium has been achieved, the temperature of the con
47、nections shall not exceed 80 C. ISO 2015 All rights reserved 11BS ISO 8820-10:2015ISO 8820-10:2015(E) Bibliography 1 ISO 6722-1, Road vehicles 60 V and 600 V single-core cables Part 1: Dimensions, test methods and requirements for copper conductor cables12 ISO 2015 All rights reservedBS ISO 8820-10:
48、2015BS ISO 8820-10:2015ISO 8820-10:2015(E) ISO 2015 All rights reserved IC S 43.040.10 Price based on 12 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services. BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited. British Standards Institution (BSI) BSI Group Headquarters 389 Chiswick High Road London W4 4AL UK About us We bring together bus
