1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50557:2011Requirements for automaticreclosing devices (ARDs) forcircuit breakers-RCBOs-RCCBsfor household and similar usesCopyright European Committee for Electrotechnical
2、Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50557:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50557:2011.The UK participation in its preparation was e
3、ntrusted to TechnicalCommittee PEL/23/1, Circuit breakers and similar equipment forhousehold use.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsi
4、ble for its correctapplication. The British Standards Institution 2012ISBN 978 0 580 71224 1ICS 29.120.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January
5、 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50557:2011EUROPEAN STANDARD EN 50557 NORME E
6、UROPENNE EUROPISCHE NORM December 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in
7、any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50557:2011 E ICS 29.120.50 English version Requirements for automatic reclosing devices (ARDs) for circuit breakers-RCBOs-RCCBs for household and similar uses Prescriptions pour les dispositifs refermeture automatique (DRA
8、) pour disjoncteurs, ID et DD, pour usages domestiques et analogues Automatisch wiedereinschaltende Einrichtungen fr Leitungsschutzschalter sowie Fehlerstrom-Schutzschalter mit und ohne eingebautem berstromschutz (RCBOs und RCCBs) fr Hausinstallationen und fr hnliche Anwendungen (ARDs) This European
9、 Standard was approved by CENELEC on 2011-07-19. 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 co
10、ncerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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
11、 member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, G
12、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license wi
13、th CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50557:2011EN 50557:2011 2 Contents Foreword . 5 Introduction . 61 Scope . 62 Normative references . 63 Terms and definitions . 84 Classification . 104.1 According to the method of construction 104.2 Ac
14、cording to the MPD . 104.3 According to the type of assessment means 104.4 According to the safety means during the assessment 114.5 According to the range of ambient air temperature (only for ARD according to 4.2.2 and 4.2.3) . 114.6 According to the connection to FE 114.7 According to maximum numb
15、er of reclosing operations 114.8 According to mechanical interlock between MPD operating means and ARD enabling/disabling system . 115 Characteristics 115.1 Summary of characteristics 115.2 Rated quantities 126 Marking and other product information . 136.1 Standard marking . 136.2 Instructions for a
16、ssembly and operation . 147 Standard conditions for operation in service 157.1 General . 157.2 Conditions of installation . 157.3 Pollution degree 158 Requirements for construction and operation 158.1 Mechanical design 158.2 Protection against electric shock 198.3 Dielectric properties and isolating
17、 capability . 198.4 Temperature rise 208.5 Mechanical and electrical endurance . 208.6 Performance at short-circuit currents . 208.7 Resistance to mechanical shock and impact 208.8 Resistance to heat 208.9 Resistance to abnormal heat and to fire . 208.10 Behaviour at low ambient air temperature 218.
18、11 Operating characteristic 218.12 Assessment means for ARD according to 4.3.2 . 228.13 Safety in blocked condition . 238.14 Test device 238.15 Ageing . 238.16 Electromagnetic compatibility (EMC) 239 Tests . 239.1 General . 239.2 Test condition . 239.3 Measurement of the reclosing time after the tri
19、pping of the MPD 24Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50557:2011 3 EN 50557:2011 9.4 Test of indelibility of marking 249.5 Verification of
20、 the non influence of the ARD on the correct operation of the MPD 249.6 Tests of creepage distances and clearances for electronic circuits (abnormal conditions) . 269.7 Requirements for capacitors and specific resistors and inductors used in electronic circuits 289.8 Test of reliability of screws, c
21、urrent-carrying parts and connections 289.9 Test of reliability of terminals for external conductors 299.10 Verification of protection against electric shock 299.11 Test of dielectric properties and isolating capability . 299.12 Temperature rise 309.13 Verification of the mechanical and electrical e
22、ndurance Verification of the reclosing system of the ARD 309.14 Short-circuit test 309.15 Resistance to mechanical shock and impact 319.16 Test of resistance to heat . 319.17 Resistance to abnormal heat and to fire . 329.18 Verification of the correct operation at low ambient air temperatures for RC
23、CBs for use at temperatures between -25 C and +40 C . 329.19 Verification of the operating characteristics 329.20 Verification of the safety during the assessment 339.21 Verification of the operation of the test device at the limits of rated voltage 349.22 Verification of ageing 349.23 Electromagnet
24、ic compatibility . 35Annex A (informative) Classification of ARDs according to 4.3.1 . 43Annex B (informative) Classification of ARDs according to 4.3.2.1 a) and/or 4.3.2.2 a) 44Annex C (informative) Classification of ARDs according to 4.3.2.1 b) and/or 4.3.2.2 b) . 45Annex D (normative) Number of s
25、amples for full test procedure 46Annex E (normative) Test sequences . 47Annex F (informative) A-deviations . 48Annex ZZ (informative) Coverage of Essential Requirements of EC Directives. 49Bibliography 50Figures Figure 1 Minimum creepage distances and clearances measured in millimetres 37Figure 2 Mi
26、nimum creepage distances and clearances as a function of peak value of operating voltage . 38Figure 3 Verification of the reclosing subordinated to the measurements of the resistance to earth for ARD without functional earthing (9.19.1 a) 9.19. 1 b) 9.20.2) 39Figure 4 Verification of the reclosing s
27、ubordinated to the measurements of the resistance to earth for ARD with functional earthing (9.19.1 a) 9.19. 1 b) 9.20.2) . 40Figure 5 Verification of the reclosing subordinated to the measurements of the resistance between live parts (9.19.2 a) 9.19.2 b) 41Figure 6 Test circuit for the verification
28、 of the maximum current in FE under normal condition 42Figure A.1 Classification of ARDs according to 4.3.1 . 43Figure B.1 Classification of ARDs according to 4.3.2.1 a) and/or 4.3.2.2 a) 44Figure C.1 Classification of ARDs according to 4.3.2.1 b) and/or 4.3.2.2 b) 45Copyright European Committee for
29、 Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50557:2011EN 50557:2011 4 Tables Table 1 Minimum admissible Rdvalues 12Table 2 Minimum clearances and creepage distances 18Table 3 Beha
30、viour of the ARD in enable condition . 22Table 4 Maximum permissible temperatures under abnormal conditions 27Table 5 Low frequency immunity test conditions 35Table 6 High-frequency immunity test conditions . 36Table 7 Test conditions for electrostatic discharges 36Table D.1 Number of samples for fu
31、ll test procedure . 46Table D.2 Additional tests for ARD already fully tested together with one kind of MPD 46Table E.1 Test sequences 47Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted w
32、ithout license from IHS-,-,-BS EN 50557:2011 5 EN 50557:2011 Foreword This document (EN 50557:2011) has been prepared by CLC/TC 23E “Circuit breakers and similar devices for household and similar applications“. The following dates are fixed: latest date by which this document has to be implemented a
33、t national level by publication of an identical national standard or by endorsement (dop) 2012-07-19 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2014-07-19 Attention is drawn to the possibility that some of the elements of this document may b
34、e the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of
35、EU Directive(s). For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this document. _ Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without
36、 license from IHS-,-,-BS EN 50557:2011EN 50557:2011 6 Introduction Automatic Reclosing Devices are intended to reclose circuit-breakers-RCBOs-RCCBs after tripping in order to re-establish continuity of service. 1 Scope This European Standard applies to Automatic Reclosing Devices (hereinafter referr
37、ed to as “ARD”) for household and similar uses, for rated voltage not exceeding 440 V a.c. intended to be used in combination with circuit-breakers and/or RCCBs and/or RCBOs, and designed either for factory assembly or for assembly on site. These devices are intended to reclose main protective devic
38、es (hereinafter referred to as “MPD”) such as circuit-breakers complying to EN 60898-1 and/or EN 60898-2, RCCBs complying to EN 61008-1 and RCBOs complying to EN 61009-1 after tripping of those devices in order to re-establish continuity of service. In detail, this European Standard applies to the f
39、ollowing types of ARD: ARD with assessment means, reclosing only if both the prospective line current and the prospective earth-fault current do not exceed given values; ARD with assessment means, reclosing only if the prospective line current does not exceed a given value; ARD with assessment means
40、, reclosing only if the prospective earth-fault current does not exceed a given value; ARD that reclose without any assessment. NOTE 1 The assessment cannot substitute the verifications required by HD 60364-6:2007. NOTE 2 The requirements and tests for the assessment function in IT systems are under
41、 consideration. This European Standard does not apply to ARDs with multiple settings adjustable by means accessible to the user in normal service. This European Standard states: the terms and definitions used for ARD (Clause 3); the classification of ARD (Clause 4); the characteristics of ARD (Claus
42、e 5); the preferred values of the operating and influencing quantities (Clause 5); the marking and information to be provided for ARD (Clause 6); the standard conditions for installation and operation in service (Clause 7); the requirements for construction and operation (Clause 8); the list of mini
43、mum requirements to be tested (Clause 9). 2 Normative 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 amend
44、ments) applies. EN 55014-1:2006 + A1:2009, Electromagnetic compatibility Requirements for household appliances, electric tools and similar apparatus Part 1: Emission (CISPR 14-1:2005 + A1:2008) EN 60065:2002 + A1:2006 + corr. Aug. 2007 + A11:2008 + A2:2010, Audio, video and similar electronic appara
45、tus Safety requirements (IEC 60065:2001, mod. + A1:2005, mod. + A2:2010, mod.) Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50557:2011 7 EN 50557:20
46、11 EN 60112:2003 + A1:2009, Method for the determination of the proof and the comparative tracking indices of solid insulating materials (IEC 60112:2003 + A1:2009) EN 60384-14 series, Fixed capacitors for use in electronic equipment (IEC 60384 series) EN 60384-14:2005, Fixed capacitors for use in el
47、ectronic equipment Part 14: Sectional specification Fixed capacitors for electromagnetic interference suppression and connection to the supply mains (IEC 60384-14:2005) EN 60664-1:2007, Insulation coordination for equipment within low-voltage systems Part 1: Principles requirements and tests (IEC 60664-1:2007) EN 60664-3:2003 + A1:2010, Insulation coordination for equipment within low-voltage systems Part 3: Use of coating, potting or moulding for protection against pollution (IEC 60664-3:2003 + A1:2010 + corr.
