BS-EN-60947-5-8-2006.pdf
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1、BRITISH STANDARD BS EN 60947-5-8:2006 Low-voltage switchgear and controlgear Part 5-8: Control circuit devices and switching elements Three-position enabling switches The European Standard EN 60947-5-8:2006 has the status of a British Standard ICS 29.130.20 ? Licensed Copy: London South Bank Univers
2、ity, London South Bank University, Tue Jan 30 01:30:27 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 60947-5-8:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2007 BSI 2007 ISBN 978 0 580 50048 0 National foreword This Brit
3、ish Standard was published by BSI. It is the UK implementation of EN 60947-5-8:2006. It is identical with IEC 60947-5-8:2006. The UK participation in its preparation was entrusted by Technical Committee PEL/17, Switchgear, controlgear, and HV-LV co-ordination, to Subcommittee PEL/17/2, Low voltage s
4、witchgear and controlgear. A list of organizations represented on PEL/17/2 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 canno
5、t confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:30:27 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 60947-5-8 NORME EUROPENNE EUROPISCHE NORM
6、 December 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any
7、means reserved worldwide for CENELEC members. Ref. No. EN 60947-5-8:2006 E ICS 29.130.20 English version Low-voltage switchgear and controlgear Part 5-8: Control circuit devices and switching elements - Three-position enabling switches (IEC 60947-5-8:2006) Appareillage basse tension Partie 5-8: Appa
8、reils et lments de commutation pour circuit de commande - Interrupteurs de commande de validation trois positions (CEI 60947-5-8:2006) Niederspannungsschaltgerte Teil 5-8: Steuergerte und Schaltelemente - Drei-Stellungs-Zustimmschalter (IEC 60947-5-8:2006) This European Standard was approved by CENE
9、LEC on 2006-11-01. 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 standar
10、ds may be obtained 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 notifi
11、ed to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
12、g, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:30:27 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of document
13、 17B/1492/FDIS, future edition 1 of IEC 60947-5-8, prepared by SC 17B, Low- voltage switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60947-5-8 on 2006-11-01. The following dates were fixed: latest d
14、ate by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-11-01 This part of EN 60947 should be used in conjunctio
15、n with EN 60947-1:2004 and EN 60947-5-1:2004. The provisions of the general rules, IEC 60947-1, are applicable to this part of EN 60947, where specifically called for. General rules, clauses and subclauses thus applicable, as well as tables, figures and annexes are identified by a reference to IEC 6
16、0947-1, for example 1.2.3 or Annex A of IEC 60947-1. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60947-5-8:2006 was approved by CENELEC as a European Standard without any modification. _ EN 60947-5-8:2006 2 Licensed Copy: London South Bank Univ
17、ersity, London South Bank University, Tue Jan 30 01:30:27 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3 EN 60947-5-8:2006 CONTENTS 1 General4 1.1 Scope4 1.2 Normative references 4 2 Terms and definitions .5 3 Classification6 3.1 Contact elements.6 3.2 Three-position enabling switch.6 4 Characteristic
18、s .6 4.1 Summary of characteristics6 4.2 Type of three-position enabling switch .6 4.3 Rated and limiting values for switching elements6 4.4 Utilization categories for switching elements 7 4.5 Vacant.7 4.6 Vacant.7 4.7 Vacant.7 4.8 Vacant.7 4.9 Switching overvoltages 7 4.10 Electrically separated co
19、ntact elements7 5 Product information 7 5.1 Nature of information .7 5.2 Marking.8 5.3 Instructions for installation, operation and maintenance8 5.4 Additional information 8 6 Normal service, mounting and transport conditions8 6.3 Mounting .8 7 Constructional and performance requirements.9 7.1 Const
20、ructional requirements 9 7.2 Performance requirements.11 8 Tests12 8.1 Kinds of test 12 8.2 Compliance with constructional requirements .13 8.3 Performance13 Annex A (informative) Example of an enabling device incorporating a three-position enabling switch.19 Annex ZA (normative) Normative reference
21、s to international publications with their corresponding European publications21 Bibliography .20 Figure 1 Operation of three-position enabling switches .10 Figure 2 Operating force, travel and contact status .11 Figure A.1 Enabling device.19 Licensed Copy: London South Bank University, London South
22、 Bank University, Tue Jan 30 01:30:27 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60947-5-8:2006 4 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 5-8: Control circuit devices and switching elements Three-position enabling switches 1 General 1.1 Scope This part of IEC 60947 specifies requirements for
23、three-position enabling switches. These switches are used as components of enabling devices described in 10.9 of IEC 60204-1 to provide signals that, a) when activated, allow machine operation to be initiated by a separate start control, and b) when de-activated, i) initiate a stop function, and ii)
24、 prevent initiation of machine operation. NOTE 1 The enabling control function is described in 9.2.6.3 of IEC 60204-1. NOTE 2 This standard does not deal with enabling devices. This standard does not apply to: three-position enabling switches for non-electrical control circuits, for example hydrauli
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