1、BRITISH STANDARD BS EN 60077-5:2003 Railway applications Electrotechnical equipment for rolling stock Part 5: Electrotechnical components Rules for HV fuses The European Standard EN 60077-5:2003 has the status of a British Standard ICS 45.060 BS EN 60077-5:2003 This British Standard was published un
2、der the authority of the Standards Policy and Strategy Committee on 28 November 2003 BSI 28 November 2003 ISBN 0 580 42985 7 National foreword This British Standard is the official English language version of EN 60077-5:2003. It is identical with IEC 60077-5:2003. The UK participation in its prepara
3、tion was entrusted by Technical Committee GEL/9, Railway electrotechnical applications, to Subcommittee GEL/9/2, Rolling stock, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standard
4、s which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This pu
5、blication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internat
6、ional/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN titl
7、e page, pages 2 to 28, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60077-5 NORME EUROPENNE EUROPISCHE NORM September 2003 CENELEC E
8、uropean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide
9、 for CENELEC members. Ref. No. EN 60077-5:2003 E ICS 45.060 English version Railway applications - Electrotechnical equipment for rolling stock Part 5: Electrotechnical components - Rules for HV fuses (IEC 60077-5:2003) Applications ferroviaires - Equipements lectriques du matriel roulant Partie 5:
10、Composants lectrotechniques - Rgles pour les fusibles haute tension (CEI 60077-5:2003) Bahnanwendungen - Elektrische Betriebsmittel auf Bahnfahrzeugen Teil 5: Elektrotechnische Bauteile - Regeln fr Hochspannungssicherungen (IEC 60077-5:2003) This European Standard was approved by CENELEC on 2003-09-
11、01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtai
12、ned on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Centr
13、al Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slo
14、vakia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of document 9/752/FDIS, future edition 1 of IEC 60077-5, prepared by IEC TC 9, Electrical equipment and systems for railways, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60077-5 on 2003-09-01
15、. This standard should be read in conjunction with EN 60077-1:2002 and EN 60077-2:2002. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2004-06-01 latest date by which the nat
16、ional standards conflicting with the EN have to be withdrawn (dow) 2006-09-01 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annexes A and ZA are normative and annexes B to D are informative. Ann
17、ex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60077-5:2003 was approved by CENELEC as a European Standard without any modification. _ Page2 EN600775:2003-770065 3002:CEI 3 CONTENTS 1 Scope and object5 2 Normative references5 3 Definitions6 3.1 Compo
18、nents6 3.2 Operational characteristics 7 4 Classification9 4.1 Breaking range (see also Annex B) 9 4.2 Utilisation category 9 5 Characteristics9 6 Product information.10 6.1 Documentation10 6.2 Marking.10 7 Normal service conditions.10 8 Constructional and performance requirements 11 8.1 Constructio
19、nal requirements 11 8.2 Performance requirements.11 9 Tests13 9.1 Kinds of tests.13 9.2 Tests for the verification of constructional requirements .14 9.3 Type tests for the verification of performance requirements14 9.4 Routine tests for the verification of performance requirements .22 Annex A (norm
20、ative) Connection diagram for temperature-rise tests 23 Annex B (informative) Comparison between “a” and “g” fuse time current characteristics .24 Annex C (informative) Diagram of the test circuit for breaking capacity tests25 Annex D (informative) Verification of breaking capacity26 Annex ZA (norma
21、tive) Normative references to international publications with their corresponding European publications28 Figure A.1 Connection diagram for temperature-rise tests.23 Figure B.1 Comparison between “a” and “g” fuse time current characteristics24 Figure C.1 Diagram of the test circuit for breaking capa
22、city tests 25 Figure D.1 Test circuit calibration .26 Figure D.2 Breaking operation when the instant of arc initiation is after the peak value of the current 27 Figure D.3 Breaking operation when the instant of arc initiation is prior to the peak value of the current .27 Table 1 Conventional times f
23、or “g” fuse-links 10 Table 2 Rated and test voltages for d.c. fuse-links supplied from the contact line12 Page3 EN600775:2003-770065 3002:CEI 4 Table 3 Sequence of tests for the highest rating of a homogenous series15 Table 4 Sequence of tests for the lowest rating of a homogenous series.16 Table 5
24、Sequence of tests for intermediate ratings of a homogenous series17 Table 6 Tolerances on test values 17 Table 7 Parameters for breaking capacity tests of d.c. fuse-links 19 Table 8 Time constant of the test circuit .20 Page4 EN600775:2003-770065 3002:CEI 5 RAILWAY APPLICATIONS ELECTRIC EQUIPMENT FO
25、R ROLLING STOCK Part 5: Electrotechnical components Rules for HV fuses 1 Scope and object The purpose of this part of IEC 60077 is to give additional or amended rules for high voltage fuses as a supplement to those given by IEC 60077-2. NOTE In this product standard the term high voltage fuses is us
26、ed in the context of the voltages used in the field of railway rolling stock. The high voltage fuses concerned are those to be connected into power and/or auxiliary circuits. The nominal voltage of these circuits lies between 600 V d.c. and 3 000 V d.c., according to IEC 60850. These fuses may also
27、be used in auxiliary a.c. circuits up to a nominal voltage of 1 500 V. NOTE Certain of these rules may, after agreement between user and manufacturer, be used for fuses installed on vehicles other than rail rolling stock such as mine locomotives, trolleybuses, etc. This product standard together wit
28、h IEC 60077-2 states specifically: a) the characteristics of the fuses; b) the service conditions with which the fuses have to comply with reference to: operation and behaviour in normal service; operation and behaviour in case of short circuit; dielectric properties. c) the tests intended for confi
29、rming the compliance of the fuse with the characteristics under the service conditions and the methods to be adopted for these tests; d) the information to be marked on, or given with, the fuse. This standard does not cover parallel connection of fuses. During preparation of this product standard, I
30、EC 60269-1 and IEC 60282-1 have been considered and their requirements have been kept as far as possible. This product standard makes reference to the general rules for electrotechnical components given in IEC 60077-2, but for general conditions reference is made directly to IEC 60077-1. 2 Normative
31、 references The following referenced documents are indispensable for the application 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. Page5 EN600775:2003-770065 3002:CEI 6
32、 IEC 60050(441):1984, International Electrotechnical Vocabulary (IEV) Chapter 441: Switch- gear, controlgear and fuses IEC 60050(811):1991, International Electrotechnical Vocabulary (IEV) Chapter 811: Electric traction IEC 60077-1:1999, Railway applications Electric equipment for rolling stock Part
33、1: General service conditions and general rules IEC 60077-2:1999, Railway applications Electric equipment for rolling stock Part 2: Electrotechnical components General rules IEC 60269-1:1998, Low-voltage fuses Part 1: General requirements IEC 60282-1:2002, High-voltage fuses Part 1: Current limiting
34、 fuses IEC 60850:2000, Railway applications Supply voltages of traction systems IEC 61373:1999, Railway applications Rolling stock equipment Shock and vibration tests ISO 3:1973, Preferred numbers Series of preferred numbers 3 Terms and definitions For the purposes of this document, the terms and de
35、finitions given in IEC 60077-1 and IEC 60077-2 together with the following definitions apply. 3.1 Components 3.1.1 fuse device that, by the fusing of one or more of its specifically designed and proportioned components, opens the circuit in which it is inserted by breaking the current when this exce
36、eds a given value for a sufficient time. The fuse comprises all the parts that form the complete device. IEV 441-18-01 3.1.2 fuse-link part of a fuse (including the fuse-element(s) intended to be replaced after the fuse has operated IEV 441-18-09 3.1.3 fuse-element part of the fuse-link designed to
37、melt under the action of current exceeding some definite value for a definite period of time IEV 441-18-08 3.1.4 fuse-base fixed part of a fuse provided with contacts and terminals IEV 441-18-02 Page6 EN600775:2003-770065 3002:CEI 7 3.1.5 indicating device part of a fuse provided to indicate whether
38、 the fuse has operated IEV 441-18-17 3.2 Operational characteristics 3.2.1 prospective current current that would flow in the circuit if the fuse were replaced by a conductor of negligible impedance IEV 441-17-01, modified 3.2.2 prospective peak current peak value of a prospective current during the
39、 transient period following fault current initiation IEV 441-17-02, modified NOTE This term is commonly associated with short-circuit conditions. 3.2.3 pre-arcing time interval of time between the beginning of a current large enough to cause a break in the fuse- elements and the instant when an arc
40、is initiated IEV 441-18-21 3.2.4 arcing time interval of time between the instant of the initiation of the arc in a fuse and the instant of final arc extinction in that fuse IEV 441-17-37, modified 3.2.5 operating time sum of the pre-arcing time and the arcing time IEV 441-18-22 3.2.6 arc voltage in
41、stantaneous value of voltage which appears across the terminals of a fuse during the arcing time IEV 441-18-30 3.2.7 peak arc voltage maximum instantaneous value of voltage which under prescribed conditions appears across the terminals of a fuse during the arcing time IEV 441-17-30, modified NOTE Af
42、ter extinction of the arc, an overvoltage (transient recovery voltage) may be present across the terminals. The value of this will depend on the circuit characteristics and the fuse. This overvoltage is not part of the peak arc voltage (see Figures D.2 and D.3). Page7 EN600775:2003-770065 3002:CEI 8
43、 3.2.8 d.c. or power frequency steady-state recovery voltage recovery voltage in a circuit after the transient voltage phenomena have subsided, expressed by the mean value where ripple is present IEV 441-17-28, modified NOTE This is shown as B 1and B 2 in Figures D.2 and D.3. 3.2.9 peak let-through
44、current maximum instantaneous value of current attained during the operation of a fuse IEV 441-17-12, modified 3.2.10 I 2 t; Joule integral integral of the square of the current over a given time interval IEV 441-18-23 It i t t t 22 0 1 = d NOTE 1 The pre-arcing I 2 t is the I 2 t integral extended
45、over the pre-arcing time of the fuse. NOTE 2 The operating I 2 t is the I 2 t integral extended over the operating time of the fuse. NOTE 3 The energy in joules liberated in one ohm of resistance in a circuit protected by a fuse is equal to the value of the operating I 2 t expressed in A 2 s. 3.2.11
46、 time-current characteristic curve giving the time, e.g. pre-arcing time or operating time, as a function of the prospective current under stated conditions of operation IEV 441-17-13 3.2.12 conventional non-fusing current value of current specified as that which the fuse-link is capable of carrying
47、 for a specified time (conventional time) without melting IEV 441-18-27 3.2.13 conventional fusing current value of current specified as that which causes operation of the fuse-link within a specified time (conventional time) IEV 441-18-28 3.2.14 rated value quantity value, generally assigned by a m
48、anufacturer, for a specified operating condition of a fuse IEV 811-11-02, modified NOTE The rated values usually stated for fuses are voltage, current, breaking capacity and power dissipation. Page8 EN600775:2003-770065 3002:CEI 9 4 Classification 4.1 Breaking range (see also Annex B) Fuse-links are classified according to whether they are: “g” fuse-link with a full range breaking capacity, i.e. capable under specified conditions of breaking all currents which cause melting of the fuse-element up to its rated breaking capacity; “a” fuse-link with a partial range breaking capacity, i.e. capa
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