1、BSI Standards PublicationBS ISO 8820-5:2015Road vehicles Fuse-linksPart 5: Fuse-links with axial terminals (Stripfuse-links) Types SF 30 and SF 51 and testfixturesBS ISO 8820-5:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 8820-5:2015. It supersedes BS I
2、SO 8820-5:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee AUE/16, Data Communication (Road Vehicles).A list of organizations represented on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 include all
3、 the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 81233 0ICS 43.040.10; 43.180Compliance with a British Standard cannot confer immunity from legal obligations.This B
4、ritish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 8820-5:2015 ISO 2015Road vehicles Fuse-links Part 5: Fuse-links with axial terminals (Strip fuse-links) T
5、ypes SF 30 and SF 51 and test fixturesVhicules routiers Liaisons fusibles Partie 5: Liaisons fusibles avec languettes axiales (liaisons fusibles lectriques) des types SF 30 et SF 51, et montages dessaiINTERNATIONAL STANDARDISO8820-5Second edition2015-03-15Reference numberISO 8820-5:2015(E)BS ISO 882
6、0-5:2015ISO 8820-5:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015All 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, including photocopying, or posting
7、 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 officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.
8、orgWeb www.iso.orgPublished in SwitzerlandBS ISO 8820-5:2015ISO 8820-5:2015(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Marking, labelling, and colour coding 15 Tests and requirements 25.1 General . 25.1.1 General test conditions . 25.1.2 Test sequence 35.1.3 Test ca
9、ble sizes 35.2 Voltage drop 45.2.1 Purpose 45.2.2 Test . 45.2.3 Requirement 45.3 Transient current cycling . 55.3.1 Purpose 55.3.2 Test . 55.3.3 Requirement 65.4 Environmental conditions . 65.5 Operating time rating 65.5.1 Purpose 65.5.2 Test . 65.5.3 Requirements . 65.6 Current steps 75.6.1 Purpose
10、 75.6.2 Test . 75.6.3 Requirements . 75.7 Breaking capacity . 75.7.1 Purpose 75.7.2 Test . 75.7.3 Requirement 85.8 Strength of terminals . 85.8.1 Purpose 85.8.2 Test . 85.8.3 Requirement 86 Dimensions and designation examples 96.1 Type SF 30 . 96.1.1 Dimensions . 96.1.2 Designation example 96.2 Type
11、 SF 51 106.2.1 Dimensions 106.2.2 Designation example .107 Test fixture .107.1 General 107.2 Materials and dimensions 10Bibliography .15 ISO 2015 All rights reserved iiiContents PageBS ISO 8820-5:2015ISO 8820-5:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide fe
12、deration 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 be represented on that com
13、mittee. 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 to develop this document a
14、nd 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 the ISO/IEC Directives, Pa
15、rt 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 during the development of t
16、he 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 meaning of ISO specific ter
17、ms 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/TC 22, Road vehicles, Subcomm
18、ittee 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 general title Road vehicles Fuse-links: Part 1: Definitions and general test requirements
19、 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 their test fixtures Part 5: Fuse-links with axial terminals (Strip fuse-links) Types SF 3
20、0 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 Part 9: Fuse-links with shortened tabs (Type K) Part 10: Fuse-links with tabs Type L (high
21、 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 fixtures1 ScopeThis part of ISO 8820 specifies fuse-links with axial terminals (Strip fuse-links) Type SF 30 and SF 5
22、1 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 fuse-links with a rated voltage of 32 V, a current rating of 30 A to 500 A, and a breaking ca
23、pacity 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 ISO 8820-2. The numbering of its Clauses corresponds to that of ISO 8820-1, whose requirements
24、are applicable except where modified by requirements particular to this part of ISO 8820.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. Fo
25、r undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4017, Fasteners Hexagon head screws Product grades A and BISO 4032, Hexagon regular nuts (style 1) Product grades A and BISO 7089, Plain washers Normal series Product grade AISO 8820-1, Road ve
26、hicles Fuse-links Part 1: Definitions and general test requirementsISO 8820-2, Road vehicles Fuse-links Part 2: User guidelines3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8820-1 apply.4 Marking, labelling, and colour codingThe requirements given i
27、n Table 1 and ISO 8820-1 shall apply.INTERNATIONAL STANDARD ISO 8820-5:2015(E) ISO 2015 All rights reserved 1BS ISO 8820-5:2015ISO 8820-5:2015(E)Table 1 Fuse-link colour codingFuse-link current ratingAFuse-link type SF 30 Fuse-link type SF 5130 orange-40 green50 red60 yellow70 brown80 whitered100blu
28、eyellow125pinkgreen150greyorange175light brown (tan)white200violetblue225 light brown (tan)250pink30 rey350dark green40 iolet450gold/dark yellow500brown5 Tests and requirements5.1 General5.1.1 General test conditionsIn addition to carrying out the test procedures in accordance with ISO 8820-1, the f
29、ollowing 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 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
30、 51 fuse-links to ensure the proper function of the test fixture; terminals shall have a suitable finish which will ensure corrosion protection and 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 rat
31、ed 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 withstand the test without deterioration.2 ISO 2015 All rights reservedBS ISO 8820-5:2015ISO 8820-5:2015(E)5.1.2 Test sequenceTable 2 Test sequenceNo Test Clause
32、Sample groupsa1 2 3 4 5 6 71 Dimensions 6 X X X2 Marking, labelling, and colour coding 4 X X X X X X X3 Terminal strength 5.8 X X X X X X X4 Fuse-link voltage drop 5.2 X X X5 Climatic load 5.4 X6 Chemical load 5.4 X7 Mechanical load 5.4 X8 Transient current cycling 5.3 X9 Fuse-link voltage drop 5.2
33、X X X X10 Current step 5.6 X11 Breaking capacity 5.7 X12Operating time rating0,75 IR, 1,0 IR, or 1,1 IR5.5X X X X X1,35 IRor 1,5 IRYbY Y Y Y2,0 IRY Y Y Y Y3,0 IRor 3,5 IRY Y Y Y Y5,0 IRor 6,0 IRY Y Y Y Y13 Terminal strength (removal) 5.8 X X X X X X XaEach sample group shall contain a minimum of eig
34、ht fuse links.bFor these operating time tests noted with a Y, the sample groups 2, 4, 5, 6, and 7 each 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 sizesTest cable sizes shall be as given in Table 3. All tests
35、 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. ISO 2015 All rights r
36、eserved 3BS ISO 8820-5:2015ISO 8820-5:2015(E)Table 3 Test cable sizesCurrent ratingAConductor cross sectional areaa mm2for fuse-link types SF 30 fuse-link types SF 5130 2,540 4,0506,0607010,080 10,0100 16,016,012525,015025,017520035,0225250 50,030070,0350400450500aConductor material according ISO 67
37、22.5.2 Voltage drop5.2.1 PurposeThis test defines and measures the energy consumption of the fuse-link which creates a temperature rise.5.2.2 TestThe 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
38、 7.This test shall be performed at 0,75 IRfor the following: SF 30 - 150A 200 A; SF 51 - 300 A 500A.5.2.3 RequirementThe requirements given in Table 4 shall apply.4 ISO 2015 All rights reservedBS ISO 8820-5:2015ISO 8820-5:2015(E)Table 4 Voltage dropCurrent ratingAMax voltage dropmV for fuse-link typ
39、es SF 30 fuse-link types SF 5130 10540 90 50806070807511010012515070175200225250300803504004505005.3 Transient current cycling5.3.1 PurposeThis test evaluates the ability of the fuse-link to withstand the energy volume of transient pulses.5.3.2 TestFigure 1 and the test given in ISO 8820-1 shall app
40、ly. At an elapsed time of 0,025 s on time, the current shall fall to a value between 1,65 IRand 2,5 IR. At no time shall the steady-state current fall below 0,9 IR.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.
41、For those fuse-links, agreements have to be taken between manufacturer and supplier. ISO 2015 All rights reserved 5BS ISO 8820-5:2015ISO 8820-5:2015(E)INI2,5ba1,65IN0,9 INt0,025 0,14,5 30KeyI currentt time in saOne cycle.bInitial applied current 4,0 IR.Figure 1 Transient current cycling5.3.3 Require
42、mentThe requirements given in ISO 8820-1 shall apply.5.4 Environmental conditionsThe tests and requirements given in ISO 8820-1 shall apply5.5 Operating time rating5.5.1 PurposeThis test evaluates the ability of the fuse-links to function when subjected to electrical overloads.5.5.2 TestThe test giv
43、en in ISO 8820-1 shall apply.5.5.3 RequirementsThe 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 Operating timesTest
44、 currentsOperating times sSF 30 SF 5130 A 125 A 150 A . 200 A 80 A . 250 A 300 A . 500 Amin max min max min max min max0,75 IRb 360 000 14 400 IR360 000 14 400 1,1 IR14 400 1,35 IR 120 1 800 1,5 IR90 3 600 2,0 IR3 100 1 15 1 15 1 153,0 IR0,3 3 3,5 IR 0,3 5 0,3 5 0,5 55,0 IR0,1 1 6,0 IRa 0,1 1 0,1 1
45、0,1 1aNot for 350 A.bNot specified.5.6 Current steps5.6.1 PurposeThis test evaluates the ability of the fuse-links components to withstand the prolonged heating due to low level overloads.5.6.2 TestThe test given in ISO 8820-1 shall apply.NOTE This test does not apply for fuse types SF 30 150 A to 2
46、00 A SF 51 300 A 500 A.5.6.3 RequirementsThe 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 capacity5.7.1 PurposeThis test evaluates the ability of the fuse-links to withstand
47、 the rated breaking current.5.7.2 TestThe 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 RequirementThe requirement given in ISO 8820-1 shall apply. After the test, the current through
48、 the fuse-link shall not exceed 0,5 mA at the rated voltage of the fuse-link.5.8 Strength of terminals5.8.1 PurposeThis test evaluates the ability of the fuse-links to withstand mechanical stress during insertion and removal.5.8.2 TestInstall the fuse-links in the test fixture (see Figure 4 to Figur
49、e 6) with the mounting torque according to Table 6. This test is performed without cables and terminals.Table 6 Mounting torqueFuse-link typeMounting torque NmSF 30 for M5 bolts 4,5 1SF 30 for M6 bolts 6 1SF 51 for M8 bolts 12 1For mounting in the vehicle, the specific procedure (greasing, surface materials, surface roughness, etc.) shall be agreed upon between the fuse-manufa
