1、BRITISH STANDARDBS EN 60691:2003+A2:2010 Thermal-links Requirements and application guideICS 29.120.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g
2、58National forewordThis British Standard is the UK implementation of EN 60691:2003+A2:2010. It is identical with IEC 60691:2002, incorporating amendments 1:2006 and 2:2010. It supersedes BS EN 60691:2003 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated
3、in the text by tags !“. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“.The UK participation in its preparation was entrusted to Technical Committee PEL/32, Fuses.A list of organizations represented on this co
4、mmittee 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 correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 60691:2003+A2:2010This
5、 British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon 25 February 2003 BSI 2010Amendments/corrigenda issued since publicationAmd. No. Date Comments 16968 30 March 2007 Implementation of IEC amendment 1:2006 with CENELEC endorsement A1:200731 May 2010 Imple
6、mentation of IEC amendment 2:2010 with CENELEC endorsement A2:2010ISBN 978 0 580 66646 9EUROPEAN STANDARD EN 60691:2003+A2NORME EUROPENNEEUROPISCHE NORMCENELECEuropean Committee for Electrotechnical StandardizationComit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnisch
7、e NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 60691:2003 EICS 29.120.50 Supersedes EN 60691:1995 + A2:2000English versionThermal-links -Requirements and app
8、lication guide(IEC 60691:2002)Protecteurs thermiques -Prescriptions et guide dapplication(CEI 60691:2002)Temperatursicherungen -Anforderungen und Anwendungshinweise(IEC 60691:2002)This European Standard was approved by CENELEC on 2002-12-01. CENELEC members are bound tocomply with the CEN/CENELEC In
9、ternal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC me
10、mber.This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified to the Central Secretariat has the same status as the official versions.CENELEC m
11、embers are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.March 2010ForewordThe text of
12、document 32C/321/FDIS, future edition 3 of IEC 60691, prepared by SC 32C, Miniaturefuses, of IEC TC 32, Fuses, was submitted to the IEC-CENELEC parallel vote and was approved byCENELEC as EN 60691 on 2002-12-01.This European Standard supersedes EN 60691:1995 + A2:2000.The following dates were fixed:
13、 latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement (dop) 2003-09-01 latest date by which the national standards conflictingwith the EN have to be withdrawn (dow) 2005-12-01Annexes designated “normative“ are part of th
14、e body of the standard.Annexes designated “informative“ are given for information only.In this standard, annexes A, B, C, E, F and ZA are normative and annexes D and G are informative.Annex ZA has been added by CENELEC._Endorsement noticeThe text of the International Standard IEC 60691:2002 was appr
15、oved by CENELEC as a EuropeanStandard without any modification._ 2 Foreword to amendment A1 The text of document 32C/395/FDIS, future amendment 1 to IEC 60691:2002, prepared by SC 32C, Miniature fuses, of IEC TC 32, Fuses, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
16、 amendment A1 to EN 60691:2003 on 2006-12-01. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-09-01 latest date by which the national standards conflicting with th
17、e amendment have to be withdrawn (dow) 2009-12-01 _ Endorsement notice The text of amendment 1:2006 to the International Standard IEC 60691:2002 was approved by CENELEC as an amendment to the European Standard without any modification. _ No liability shall attach to IEC or its directors, employees,
18、servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publi
19、cation, use of, or reliance upon, this IEC Publication or any other IECPublications. Attention is drawn to the Normative references cited in this publication. Use of the referenced publica-tions is indispensable for the correct application of this publication. Attention is drawn to the possibility t
20、hat some of the elements of this IEC Publication may be the subjectof patent rights. IEC shall not be held responsible for identifying any or all such patent rights. BS EN 60691:2003+A2:2010EN 60691:2003+A2:2010 (E)Foreword to amendment A2The text of document 32C/425/FDIS, future amendment 2 to IEC
21、60691:2002, prepared by SC 32C, Miniature fuses, of IEC TC 32, Fuses, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 60691:2003 on 2010-03-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of pate
22、nt rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-12-01 lates
23、t date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2013-03-01 _ Endorsement notice The text of amendment 2:2010 to the International Standard IEC 60691:2002 was approved by CENELEC as an amendment to the European Standard without any modification. _ BS E
24、N 60691:2003+A2:2010EN 60691:2003+A2:2010 (E) 3 CONTENTS INTRODUCTION.5 1 Scope 7 2 Normative references .7 3 Definitions9 4 General requirements .10 5 General notes on tests11 6 Classification13 7 Marking13 8 Documentation .14 9 Mechanical requirements14 10 Electrical requirements .17 11 Temperatur
25、e tests 22 12 Resistance to rusting 24 13 Manufacturers validation programme24 Annex A (normative) Application guide .26 Annex B (normative) Alternative ageing test for thermal-links with Th greater than 250 C for use in electric irons.27 Annex C (normative) Conductive heat ageing test.28 Annex D (i
26、nformative) Extended holding temperature evaluation.33 Annex E (normative) Seal ageing test.35 Annex F (normative) Identification requirements .37 Annex G (informative) Indelibility of markings 38 Annex ZA (normative) Normative references to international publications with their corresponding Europe
27、an publications .39 Figure 1 Bending/twist test.16 Figure C.1 Typical test fixture assembly .31 Figure C.2 Typical thermal-link test oven32 Figure D.1 Typical terminal block support test fixture 34 Figure E.1 Conditioning time versus oven temperature for proposed temperature index.36 Figure G.1 Appa
28、ratus for testing durability of markings .38 Table 1 Test schedule12 Table 2 Strength of terminals Minimum required tensile and thrust test forces 17 Table 3 Creepage distances and clearances (absolute minimum values).18 Table 4 Test voltages for dielectric strength19 Table 5 Test current for interr
29、upting test.20 Table 6 Limited short-circuit test capacity.22 BS EN 60691:2003+A2:2010EN 60691:2003+A2:2010 (E) 4 INTRODUCTION Thermal-links, defined as non-resettable devices functioning once only without refunctioning, are widely applied for the thermal protection of equipment in which, under faul
30、t conditions, one or more parts may reach hazardous temperatures. As these devices have several aspects in common with miniature fuse-links and are used for obtaining a comparable degree of protection, this standard has endeavoured to lay down a number of basic requirements for such devices. BS EN 6
31、0691:2003+A2:2010EN 60691:2003+A2:2010 (E) 5 This page deliberately set blankTHERMAL-LINKS REQUIREMENTS AND APPLICATION GUIDE 1 Scope and object This International Standard is applicable to thermal-links intended for incorporation in electrical appliances, electronic equipment and component parts th
32、ereof, normally intended for use indoors, in order to protect them against excessive temperatures under abnormal conditions. NOTE 1 The equipment need not be designed to generate heat. NOTE 2 The effectiveness of the protection against excessive temperatures logically depends upon the position and m
33、ethod of mounting of the thermal-link, as well as upon the current which it is carrying. NOTE 3 Attention is drawn to the fact that the external creepage distances and clearances specified in Table 3 may in some cases be smaller than those required by certain appliance or equipment standards. In suc
34、h cases, additional means should be provided when a thermal-link is mounted in the equipment in order to adjust the creepage distances and clearances to the values required by the relevant equipment standard. This standard may be applicable to thermal-links for use under conditions other than indoor
35、s, provided that the climatic and other circumstances in the immediate surroundings of such thermal-links are comparable with those in this standard. This standard may be applicable to thermal-links in their simplest forms (e.g. melting strips or wires), provided that molten materials expelled durin
36、g function cannot adversely interfere with the safe use of the equipment, especially in the case of hand-held or portable equipment, irrespective of its position. This standard is applicable to thermal-links with a rated voltage not exceeding 690 V a.c. or d.c. and a rated current not exceeding 63 A
37、. The object of this standard is a) to establish uniform requirements for thermal-links, b) to define methods of test, c) to provide useful information for the application of thermal-links in equipment. This standard is not applicable to thermal-links used under extreme conditions such as corrosive
38、or explosive atmospheres. This standard is not applicable to thermal-links to be used in circuits on a.c. with a frequency lower than 45 Hz or higher than 62 Hz. BS EN 60691:2003+A2:2010EN 60691:2003+A2:2010 (E) 7 2 Normative references The following referenced documents are indispensable for the ap
39、plication of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60065:2001,Amendment 1 (2005) Audio, video and similar electronic apparatus Safety requirements IEC 60085:20
40、04, Electrical insulation Thermal classification IEC 60112:2003, Method for the determination of the proof and the comparative tracking indices of solid insulating materials IEC 60216-1:2001, Electrical insulating materials Properties of thermal endurance Part 1: Ageing procedures and evaluation of
41、test results IEC 60664-1:1992, Insulation coordination for equipment within low-voltage systems Part 1: Principles, requirements and tests Amendment 1 (2000) Amendment 2 (2002) IEC 60695-2-11:2000, Fire hazard testing Part 2-11: Glowing/hot-wire based test methods Glow-wire flammability test method
42、for end-products IEC 60695-10-2:2003, Fire hazard testing Part 10-2: Abnormal heat Ball pressure test IEC 60695-10-3:2002, Fire hazard testing Part 10-3: Abnormal heat Mould stress relief distortion test IEC 60695-11-10:1999, Fire hazard testing Part 11-10: Test flames 50 W horizontal and vertical f
43、lame test methods Amendment 1 (2003) IEC 60695-11-20:1999, Fire hazard testing Part 11-20: Test flames 500 W flame test methods IEC 60730-1:1999, Automatic electrical controls for household and similar use Part 1: General requirements IEC 61210:1993, Connecting devices Flat quick-connect termination
44、s for electrical copper conductors Safety requirements ! “! “!“!“! “! “Amendment 1 (2003) ! “Note deleted !BS EN 60691:2003+A2:2010EN 60691:2003+A2:2010 (E) 8 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 clearance shortest distance in air betwee
45、n two conductive parts 3.2 creepage distance shortest distance along the surface of insulating material between two conductive parts 3.3 holding temperature, Thmaximum temperature of the thermal-link at which it will not change its state of conductivity during a specified time under specified condit
46、ions 3.4 homogeneous series (of thermal-links) series of thermal-links having common overall construction, deviating from each other only in such characteristics that, for a given test, the testing of one or a reduced number of particular thermal-links of that series shall be taken as representative
47、 for all the thermal-links of the series 3.5 interrupting current, lbvalue of the current that the thermal-link is capable of interrupting at rated voltage and under specified circuit conditions 3.6 maximum temperature limit, Tmtemperature of the thermal-link stated by the manufacturer, up to which
48、the mechanical and electrical properties of the thermal-link, having changed its state of conductivity, will not be impaired for a given time 3.7 pilot duty rating assigned to a switching device that controls the coil of another electro-mechanical device such as a solenoid, relay or contactor 3.8 po
49、rtable equipment equipment which is moved while in operation or which can easily be moved from one place to another while connected to the supply 3.9 rated current, Ircurrent used to classify a thermal-link 3.10 rated functioning temperature, Tftemperature of the thermal-link which causes it to change its state of conductivity with a detection current up to 10 mA as the only load !“BS EN 60691:2003+A2:2010EN 60691:2003+A2:2010 (E) 9 3.1
