1、BSI Standards Publication BS ISO 8820-5:2015 Road vehicles Fuse-links Part 5: Fuse-links with axial terminals (Strip fuse-links) Types SF 30 and SF 51 and test fixturesBS ISO 8820-5:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 8820-5:2015. It supersed
2、es BS ISO 8820-5:2007 which is withdrawn.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 request to its secretary. This publication does not purport to i
3、nclude all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 81233 0 ICS 43.040.10; 43.180 Compliance with a British Standard cannot confer immunity from legal obli
4、gations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2015. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO 8820-5:2015 ISO 2015 Road vehicles Fuse-links Part 5: Fuse-links with axial terminals (S
5、trip fuse-links) Types SF 30 and SF 51 and test fixtures Vhicules routiers Liaisons fusibles Partie 5: Liaisons fusibles avec languettes axiales (liaisons fusibles lectriques) des types SF 30 et SF 51, et montages dessai INTERNATIONAL STANDARD ISO 8820-5 Second edition 2015-03-15 Reference number IS
6、O 8820-5:2015(E)BS ISO 8820-5:2015ISO 8820-5:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, includ
7、ing 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 Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41
8、22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 8820-5:2015ISO 8820-5:2015(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 requirements 2 5.1 General . 2 5.1.1 General test condit
9、ions . 2 5.1.2 Test sequence 3 5.1.3 Test cable sizes 3 5.2 Voltage drop 4 5.2.1 Purpose 4 5.2.2 Test . 4 5.2.3 Requirement 4 5.3 Transient current cycling . 5 5.3.1 Purpose 5 5.3.2 Test . 5 5.3.3 Requirement 6 5.4 Environmental conditions . 6 5.5 Operating time rating 6 5.5.1 Purpose 6 5.5.2 Test .
10、 6 5.5.3 Requirements . 6 5.6 Current steps 7 5.6.1 Purpose 7 5.6.2 Test . 7 5.6.3 Requirements . 7 5.7 Breaking capacity . 7 5.7.1 Purpose 7 5.7.2 Test . 7 5.7.3 Requirement 8 5.8 Strength of terminals . 8 5.8.1 Purpose 8 5.8.2 Test . 8 5.8.3 Requirement 8 6 Dimensions and designation examples 9 6.
11、1 Type SF 30 . 9 6.1.1 Dimensions . 9 6.1.2 Designation example 9 6.2 Type SF 51 10 6.2.1 Dimensions 10 6.2.2 Designation example .10 7 Test fixture .10 7.1 General 10 7.2 Materials and dimensions 10 Bibliography .15 ISO 2015 All rights reserved iii Contents PageBS ISO 8820-5:2015ISO 8820-5:2015(E)
12、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 in a subject for which a t
13、echnical 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 Commission (IEC) on all matters
14、 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 should be noted. This docum
15、ent 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 identifying any or all su
16、ch 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 convenience of users and do
17、es 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 WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary Infor
18、mation The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electric and electronic equipment. This second edition cancels and replaces the first edition (ISO 8820-5:2007), which has been technically revised. ISO 8820 consists of the following parts, under the
19、general title Road vehicles Fuse-links: Part 1: Definitions and general test requirements Part 2: User guidelines Part 3: Fuse-link with tabs (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
20、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 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 P
21、art 9: Fuse-links with shortened tabs (Type K) Part 10: Fuse-links with tabs Type L (high current miniature)iv ISO 2015 All rights reservedBS ISO 8820-5:2015Road vehicles Fuse-links Part 5: Fuse-links with axial terminals (Strip fuse-links) Types SF 30 and SF 51 and test fixtures 1 Scope This part o
22、f ISO 8820 specifies fuse-links with axial terminals (Strip fuse-links) Type SF 30 and SF 51 and test fixtures for fuses in road vehicles. It establishes, for these fuse-link types, the rated current, test procedures, performance requirements, and dimensions. This part of ISO 8820 is applicable to f
23、use-links with a rated voltage of 32 V, a current rating of 30 A to 500 A, and a breaking capacity of 2 000 A intended for use in the electrical system of road vehicles with a nominal voltage of 12 V and/or 24 V. This part of ISO 8820 is intended to be used in conjunction with ISO 8820-1 and with IS
24、O 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 whole or in part, are normatively referenced in this document and
25、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 4017, Fasteners Hexagon head screws Product grades A and B ISO 4032, Hexagon regular nuts (style
26、1) Product grades A and B ISO 7089, Plain washers Normal series Product grade A ISO 8820-1, Road vehicles Fuse-links Part 1: Definitions and general test requirements ISO 8820-2, Road vehicles Fuse-links Part 2: User guidelines 3 Terms and definitions For the purposes of this document, the terms and
27、 definitions given in ISO 8820-1 apply. 4 Marking, labelling, and colour coding The requirements given in Table 1 and ISO 8820-1 shall apply. INTERNATIONAL ST ANDARD ISO 8820-5:2015(E) ISO 2015 All rights reserved 1BS ISO 8820-5:2015ISO 8820-5:2015(E) Table 1 Fuse-link colour coding Fuse-link c urre
28、nt rating A Fuse-link type SF 30 Fuse-link type SF 51 30 orange - 40 green 50 red 60 yellow 70 brown 80 whiter ed 100b luey ellow 125p inkg reen 150g reyo range 175l ight brown (tan)w hite 200v ioletb lue 225 light brown (tan) 250p ink 300g rey 350d ark green 400v iolet 450g old/dark yellow 500b row
29、n 5 Tests and requirements 5.1 General 5.1.1 General test conditions In addition to carrying out the test procedures in accordance with ISO 8820-1, the following criteria shall apply: tests shall be performed following the test sequences in Table 2; the test fixtures for electrical tests shall be de
30、signed in accordance with Figure 4 to Figure 7. The connection resistance shall be a maximum of 1,0 m for SF 30 fuse-links and a maximum of 0,35 m for SF 51 fuse-links to ensure the proper function of the test fixture; terminals shall have a suitable finish which will ensure corrosion protection and
31、 shall have satisfactory mechanical and electrical properties. Fuse-link type SF 30 with a rated current of 150 A200 A and fuse-link type SF 51 with a rated current of 300 A 500 A shall only be used for short circuit protection and have to be tested with a cable, the insulation of which will withsta
32、nd the test without deterioration.2 ISO 2015 All rights reservedBS ISO 8820-5:2015ISO 8820-5:2015(E) 5.1.2 Test sequence Table 2 Test sequence No Test Clause Sample groups a 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 Terminal strength 5.8 X X X X X X
33、 X 4 Fuse-link voltage drop 5.2 X X X 5 Climatic load 5.4 X 6 Chemical load 5.4 X 7 Mechanical load 5.4 X 8 Transient current cycling 5.3 X 9 Fuse-link voltage drop 5.2 X X X X 10 Current step 5.6 X 11 Breaking capacity 5.7 X 12 Operating time rating 0,75 I R , 1,0 I R , or 1,1 I R 5.5 X X X X X 1,3
34、5 I Ror 1,5 I R Y b Y Y Y Y 2,0 I R Y Y Y Y Y 3,0 I Ror 3,5 I R Y Y Y Y Y 5,0 I Ror 6,0 I R Y Y Y Y Y 13 Terminal strength (removal) 5.8 X X X X X X X aEach sample group shall contain a minimum of eight fuse links. bFor these operating time tests noted with a Y, the sample groups 2, 4, 5, 6, and 7 e
35、ach current rating shall be divided equally. These fuses are intended to be subjected to a single operating time test only. 5.1.3 Test cable sizes Test cable sizes shall be as given in Table 3. All tests for a particular fuse-link rating shall be performed using the same cable size. Test cable sizes
36、 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. ISO 2015 All rights reserved 3BS ISO 8820-5:2015ISO 8820-5:2015(E) Table 3 Test cable sizes Current rating A Conducto
37、r cross sectional area a mm 2 for fuse-link types SF 30 fuse-link types SF 51 30 2,5 40 4,0 50 6,0 60 70 10,0 80 10,0 100 16,0 16,0 125 25,0 150 25,0 175 200 35,0 225 250 50,0 300 70,0 350 400 450 500 a Conductor material according ISO 6722. 5.2 Voltage drop 5.2.1 Purpose This test defines and measu
38、res the energy consumption of the fuse-link which creates a temperature rise. 5.2.2 Test The test given in ISO 8820-1 shall apply. Measure the voltage drop at the points as indicated (see Figure 4 to Figure 6) using the test fixtures of Clause 7. This test shall be performed at 0,75 I Rfor the follo
39、wing: SF 30 - 150A 200 A; SF 51 - 300 A 500A. 5.2.3 Requirement The requirements given in Table 4 shall apply.4 ISO 2015 All rights reservedBS ISO 8820-5:2015ISO 8820-5:2015(E) Table 4 Voltage drop Current rating A Max voltage drop mV for fuse-link types SF 30 fuse-link types SF 51 30 105 40 90 50 8
40、0 60 70 80 75 110 100 125 150 70 175 200 225 250 300 80 350 400 450 500 5.3 Transient current cycling 5.3.1 Purpose This test evaluates the ability of the fuse-link to withstand the energy volume of transient pulses. 5.3.2 Test Figure 1 and the test given in ISO 8820-1 shall apply. At an elapsed tim
41、e of 0,025 s on time, the current shall fall to a value between 1,65 I Rand 2,5 I R . At no time shall the steady-state current fall below 0,9 I R . This test does not apply to fuse-links type SF 30 current ratings of 150 A and above and type SF 51 current ratings of 300 A and above. For those fuse-
42、links, agreements have to be taken between manufacturer and supplier. ISO 2015 All rights reserved 5BS ISO 8820-5:2015ISO 8820-5:2015(E) I N I 2,5 b a 1,65I N 0,9I N t 0,025 0,14 ,5 30Key I current t time in s a One cycle. b Initial applied current 4,0 I R. Figure 1 Transient current cycling 5.3.3 R
43、equirement The requirements given in ISO 8820-1 shall apply. 5.4 Environmental conditions The tests and requirements given in ISO 8820-1 shall apply 5.5 Operating time rating 5.5.1 Purpose This test evaluates the ability of the fuse-links to function when subjected to electrical overloads. 5.5.2 Tes
44、t The test given in ISO 8820-1 shall apply. 5.5.3 Requirements The requirements given in Table 5 shall apply. After activation, the current through the fuse-link shall not exceed 0,5 mA at the rated voltage of the fuse-link.6 ISO 2015 All rights reservedBS ISO 8820-5:2015ISO 8820-5:2015(E) Table 5 O
45、perating times Test currents Operating times s SF 30 SF 51 30 A 125 A 150 A . 200 A 80 A . 250 A 300 A . 500 A min max min max min max min max 0,75 I R b 360 000 14 400 I R 360 000 14 400 1,1 I R 14 400 1,35 I R 120 1 800 1,5 I R 90 3 600 2,0 I R 3 100 1 15 1 15 1 15 3,0 I R 0,3 3 3,5 I R 0,3 5 0,3
46、5 0,5 5 5,0 I R 0,1 1 6,0 I R a 0,1 1 0,1 1 0,1 1 aNot for 350 A. bNot specified. 5.6 Current steps 5.6.1 Purpose This test evaluates the ability of the fuse-links components to withstand the prolonged heating due to low level overloads. 5.6.2 Test The test given in ISO 8820-1 shall apply. NOTE This
47、 test does not apply for fuse types SF 30 150 A to 200 A SF 51 300 A 500 A. 5.6.3 Requirements The requirement given in ISO 8820-1 shall apply. After activation, the current through the fuse-link shall not exceed 0,5 mA at the rated voltage of the fuse-link. 5.7 Breaking capacity 5.7.1 Purpose This
48、test evaluates the ability of the fuse-links to withstand the rated breaking current. 5.7.2 Test The test given in ISO 8820-1 shall apply. Test at 2 000 A with cable sizes as shown in Table 3. ISO 2015 All rights reserved 7BS ISO 8820-5:2015ISO 8820-5:2015(E) 5.7.3 Requirement The requirement given
49、in ISO 8820-1 shall apply. After the test, the current through the fuse-link shall not exceed 0,5 mA at the rated voltage of the fuse-link. 5.8 Strength of terminals 5.8.1 Purpose This test evaluates the ability of the fuse-links to withstand mechanical stress during insertion and removal. 5.8.2 Test Install the fuse-links in the test fixture (see Figure 4
