BS-EN-62246-2-2008.pdf
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1、BRITISH STANDARD BS EN 62246-2:2008 Reed contact units Part 2: Heavy-duty reed switches ICS 29.120.70 ? Licensed CopyChinese University of Hong Kong, 13/06/2009 07:40, Uncontrolled Copy, (c) BSI BS EN 62246-2:2008 This British Standard was published under the authority of the Standards Policy and St
2、rategy Committee on 29 February 2008 BSI 2009 ISBN 978 0 580 63745 2 National foreword This British Standard is the UK implementation of EN 62246-2:2008. It is identical with IEC 62246-2:2007. It supersedes BS IEC 62246-2:2007 which is withdrawn. The UK participation in its preparation was entrusted
3、 to Technical Committee EPL/94, General purpose relays and reed contact units. A list of organizations represented on this committee 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 cor
4、rect application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments 2009 This corrigendum renumbers BS IEC 62246-2:2007 as BS EN IEC 62246-2:2008. Addition of Annex ZA April30 Licensed CopyChinese University
5、of Hong Kong, 13/06/2009 07:40, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 62246-2 NORME EUROPENNE EUROPISCHE NORM January 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Centra
6、l Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62246-2:2008 E ICS 29.120.70 English version Reed contact units - Part 2: Heavy-duty reed switches (IEC 62246-2:2007) Contac
7、ts lames souples en enceinte scelle - Partie 2: Relais lames souples usage intensif (CEI 62246-2:2007) Reedkontakt-Einheiten - Teil 2: Hochleistungs-Reedschalter (IEC 62246-2:2007) This European Standard was approved by CENELEC on 2007-12-01. CENELEC members are bound to comply with the CEN/CENELEC
8、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 obtained on application to the Central Secretariat or to any CENEL
9、EC 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 Central Secretariat has the same status as the official versions.
10、CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slov
11、akia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed CopyChinese University of Hong Kong, 13/06/2009 07:40, Uncontrolled Copy, (c) BSI EN 62246-2:2008 2 Foreword The text of document 94/243/CDV, future edition 1 of IEC 62246-2, prepared by IEC TC 94, All-or-nothing electrical
12、relays, was submitted to the IEC-CENELEC Parallel Unique Acceptance Procedure and was approved by CENELEC as EN 62246-2 on 2007-12-01. This European Standard is to be read in conjunction with EN 62246-1:2002. The following dates were fixed: latest date by which the EN has to be implemented at nation
13、al level by publication of an identical national standard or by endorsement (dop) 2008-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-12-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 6
14、2246-2:2007 was approved by CENELEC as a European Standard without any modification. BS EN 62246-2:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:40, Uncontrolled Copy, (c) BSI CONTENTS 1 General 5 1.1 Scope5 1.2 Normative references 5 1.3 Terms, definitions, abbreviations and symb
15、ols.5 1.4 Preferred values6 1.4.1 Frequency of operation6 1.4.2 Duty cycle .6 1.4.3 Open-circuit voltage across contacts .6 1.4.4 Current ratings 6 1.4.5 Load ratings 6 1.4.6 Number of operations 6 1.4.7 Climatic category.6 1.4.8 Preferred environmental severities 6 1.4.9 Rated operational voltage;
16、Ue.6 1.4.10 Rated switching current; Ie7 1.4.11 Rated insulation voltage 7 1.4.12 Rated impulse voltage .7 1.4.13 Utilization categories .7 1.4.14 Contact reliability.7 1.4.15 Limiting continuous current; Ith7 1.5 Marking .8 1.6 Order of precedence .8 1.7 Precautions regarding mercury (for mercury w
17、etted contact units).8 2 Quality assessment procedures8 2.1 General.8 2.2 Self-certification 8 2.3 Two-party certification .8 2.4 Third-party certification8 3 Test and measurement procedures.9 3.1 General.9 3.2 Alternative procedures 9 3.3 Standard conditions for testing 9 3.4 Visual inspection and
18、check of dimensions9 3.5 Functional tests.9 3.6 Remanence test 9 3.7 Contact circuit resistance 9 3.8 Dielectric test 9 3.9 Insulation resistance .9 3.10 Operate, release, transfer or bridging, and bounce times.9 3.11 Contact sticking.10 3.12 Robustness of terminals10 3.13 Soldering (solderability a
19、nd resistance to soldering heat) 10 3.14 Climatic sequence.10 3.15 Damp heat, steady state10 BS EN 62246-2:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:40, Uncontrolled Copy, (c) BSI 3.16 Rapid change of temperature 10 3.17 Salt mist10 3.18 Bump 10 3.19 Vibration10 3.20 Shock10 3
20、.21 Acceleration test Functional test only .10 3.22 Sealing10 3.23 Electrical endurance10 3.23.1 General .10 3.23.2 Types of electrical endurance test .11 3.23.3 Standard electrical endurance test.11 3.23.4 Application simulation endurance test12 3.23.5 Requirements 12 3.23.6 Information to be state
21、d in the detail specification .12 3.24 Mechanical endurance.13 3.25 Maximum cycling frequency.13 3.26 Mounting position test (for mercury wetted contact units) 13 3.27 Drain time test (for mercury wetted contact units)13 3.28 Voltage surge test .13 3.29 Rated impulse voltage.13 3.29.1 Procedure13 3.
22、29.2 Requirements 14 3.29.3 Information to be stated in the detail specification .14 3.30 Rated making and breaking capacities 14 3.30.1 General test arrangements 14 3.30.2 Procedure14 3.30.3 Requirements 14 3.30.4 Information to be stated in the detail specification .14 3.31 Rated conditional short
23、-circuit current .17 3.31.1 General test arrangements 17 3.31.2 Procedure17 3.31.3 Requirements 17 3.31.4 Information to be stated in the detail specification .18 3.32 Contact reliability test18 3.32.1 General test arrangements 18 3.32.2 Procedure18 3.32.3 Requirements 19 3.32.4 Information to be st
24、ated in the detail specification .19 3.33 Temperature rise.20 3.33.1 Procedure20 3.33.2 Requirements 20 3.33.3 Information to be stated in the detail specification .20 3.34 Making current capacity test21 3.34.1 General .21 3.34.2 Procedure21 3.34.3 Requirements 21 3.34.4 Information to be stated in
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