SANS 60204-1-2009 Safety of machinery - Electrical equipment of machines Part 1 General requirements《机械安全 机械电气设备 第1部分 一般规定》.pdf

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1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-23263-4 SANS 60204-1:2009Edition 3.1IEC 60204-1:2009Edition 5.1SOUTH AFRICAN NATIONAL STANDARD Safety of machinery Electrical equipment of

4、 machines Part 1: General requirements This national standard is the identical implementation of IEC 60204-1:2009 and is adopted with the permission of the International Electrotechnical Commission. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel:

5、+27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 60204-1:2009 Edition 3.1 IEC 60204-1:2009 Edition 5.1 Table of changes Change No. Date Scope IEC amdt 1 2008 Amended to update referenced standards, to change a reference to a clause and a figure, to change the reference to the standard f

6、or fault loop impedance in Annex A. National foreword This South African standard was approved by National Committee SABS TC 61, Rotating electrical machinery, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was pu

7、blished in October 2009. This SANS document supersedes SANS 60204-1:2006 (edition 3). IEC 60204-1Edition 5.1 2009-02INTERNATIONAL STANDARD NORME INTERNATIONALESafety of machinery Electrical equipment of machines Part 1: General requirements Scurit des machines Equipement lectrique des machines Parti

8、e 1: Rgles gnrales INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CQICS 29.020 PRICE CODECODE PRIXISBN 2-8318-1024-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale SANS 60204-1:

9、2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 2 60204-1 IEC:2005+A1:2008 CONTENTS FOREWORD.6 INTRODUCTION.9 1 Scope.11 2 Normative references12 3 Definitions 14 4 General requirements .21 4.1 General considerations 21 4.2 Selection of

10、equipment 22 4.3 Electrical supply 23 4.4 Physical environment and operating conditions 24 4.5 Transportation and storage 26 4.6 Provisions for handling 26 4.7 Installation.26 5 Incoming supply conductor terminations and devices for disconnecting and switching off .26 5.1 Incoming supply conductor t

11、erminations.26 5.2 Terminal for connection to the external protective earthing system .27 5.3 Supply disconnecting (isolating) device 27 5.4 Devices for switching off for prevention of unexpected start-up.30 5.5 Devices for disconnecting electrical equipment 30 5.6 Protection against unauthorized, i

12、nadvertent and/or mistaken connection.31 6 Protection against electric shock.31 6.1 General .31 6.2 Protection against direct contact 31 6.3 Protection against indirect contact .34 6.4 Protection by the use of PELV35 7 Protection of equipment 36 7.1 General .36 7.2 Overcurrent protection .36 7.3 Pro

13、tection of motors against overheating .39 7.4 Abnormal temperature protection .40 7.5 Protection against supply interruption or voltage reduction and subsequent restoration .40 7.6 Motor overspeed protection41 7.7 Earth fault/residual current protection.41 7.8 Phase sequence protection41 7.9 Protect

14、ion against overvoltages due to lightning and to switching surges 41 8 Equipotential bonding .41 8.1 General .41 8.2 Protective bonding circuit.44 8.3 Functional bonding 47 8.4 Measures to limit the effects of high leakage current 47 SANS 60204-1:2009This s tandard may only be used and printed by ap

15、proved subscription and freemailing clients of the SABS .60204-1 IEC:2005+A1:2008 3 9 Control circuits and control functions.47 9.1 Control circuits 47 9.2 Control functions .48 9.3 Protective interlocks 53 9.4 Control functions in the event of failure 54 10 Operator interface and machine-mounted co

16、ntrol devices58 10.1 General .58 10.2 Push-buttons .59 10.3 Indicator lights and displays.61 10.4 Illuminated push-buttons62 10.5 Rotary control devices .62 10.6 Start devices .62 10.7 Emergency stop devices 62 10.8 Emergency switching off devices .63 10.9 Enabling control device64 11 Controlgear: l

17、ocation, mounting, and enclosures .64 11.1 General requirements 64 11.2 Location and mounting.64 11.3 Degrees of protection 66 11.4 Enclosures, doors and openings 66 11.5 Access to controlgear 67 12 Conductors and cables .68 12.1 General requirements 68 12.2 Conductors68 12.3 Insulation.69 12.4 Curr

18、ent-carrying capacity in normal service69 12.5 Conductor and cable voltage drop70 12.6 Flexible cables.71 12.7 Conductor wires, conductor bars and slip-ring assemblies72 13 Wiring practices74 13.1 Connections and routing 74 13.2 Identification of conductors 75 13.3 Wiring inside enclosures77 13.4 Wi

19、ring outside enclosures77 13.5 Ducts, connection boxes and other boxes 80 14 Electric motors and associated equipment 82 14.1 General requirements 82 14.2 Motor enclosures .83 14.3 Motor dimensions 83 14.4 Motor mounting and compartments 83 14.5 Criteria for motor selection.83 14.6 Protective device

20、s for mechanical brakes.84 15 Accessories and lighting .84 15.1 Accessories.84 15.2 Local lighting of the machine and equipment84 SANS 60204-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 4 60204-1 IEC:2005+A1:2008 16 Marking, warning

21、 signs and reference designations.85 16.1 General .85 16.2 Warning signs .86 16.3 Functional identification .86 16.4 Marking of equipment 86 16.5 Reference designations .87 17 Technical documentation 87 17.1 General .87 17.2 Information to be provided .87 17.3 Requirements applicable to all document

22、ation88 17.4 Installation documents .88 17.5 Overview diagrams and function diagrams .89 17.6 Circuit diagrams 89 17.7 Operating manual 90 17.8 Maintenance manual90 17.9 Parts list90 18 Verification .90 18.1 General .90 18.2 Verification of conditions for protection by automatic disconnection of sup

23、ply .91 18.3 Insulation resistance tests .94 18.4 Voltage tests .95 18.5 Protection against residual voltages.95 18.6 Functional tests .95 18.7 Retesting.95 Annex A (normative) Protection against indirect contact in TN-systems.96 Annex B (informative) Enquiry form for the electrical equipment of mac

24、hines 100 Annex C (informative) Examples of machines covered by this part of IEC 60204104 Annex D (informative) Current-carrying capacity and overcurrent protection of conductors and cables in the electrical equipment of machines106 Annex E (informative) Explanation of emergency operation functions1

25、12 Annex F (informative) Guide for the use of this part of IEC 60204 .113 Annex G (informative) Comparison of typical conductor cross-sectional areas 115 Bibliography117 Index 119 Figure 1 Block diagram of a typical machine .10 Figure 2 Example of equipotential bonding for electrical equipment of a

26、machine43 Figure 3 Method a).57 Figure 4 Method b).57 Figure A.1 Typical arrangement for fault loop impedance measurement 99 Figure D.1 Methods of conductor and cable installation independent of number of conductors/cables . 107 Figure D.2 Parameters of conductors and protective devices 109 SANS 602

27、04-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60204-1 IEC:2005+A1:2008 5 Table 1 Minimum cross-sectional area of the external protective copper conductor .27 Table 2 Colour-coding for push-button actuators and their meanings 60 Tab

28、le 3 Symbols for push-buttons 60 Table 4 Colours for indicator lights and their meanings with respect to the condition of the machine 61 Table 5 Minimum cross-sectional areas of copper conductors.68 Table 6 Examples of current-carrying capacity (Iz) of PVC insulated copper conductors or cables under

29、 steady-state conditions in an ambient air temperature of +40 C for different methods of installation 70 Table 7 Derating factors for cables wound on drums.72 Table 8 Minimum permitted bending radii for the forced guiding of flexible cables .79 Table 9 Application of the test methods for TN-systems9

30、3 Table 10 Examples of maximum cable length from each protective device to its load 94 Table A.1 Maximum disconnecting times for TN systems 96 Table D.1 Correction factors.106 Table D.2 Derating factors from Izfor grouping 108 Table D.3 Derating factors from Izfor multicore cables up to 10 mm2.108 T

31、able D.4 Classification of conductors109 Table D.5 Maximum allowable conductor temperatures under normal and short-circuit conditions .110 Table F.1 Application options .114 Table G.1 Comparison of conductor sizes.115 SANS 60204-1:2009This s tandard may only be used and printed by approved subscript

32、ion and freemailing clients of the SABS . 6 60204-1 IEC:2005+A1:2008 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SAFETY OF MACHINERY ELECTRICAL EQUIPMENT OF MACHINES Part 1: General requirements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardi

33、zation comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes Interna

34、tional Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate i

35、n this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the

36、 two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have

37、 the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misin

38、terpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding nation

39、al or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition o

40、f this publication. 7) No liability shall attach to IEC or its directors, employees, 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 o

41、r indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable

42、for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60204-1 has bee

43、n prepared by technical committee 44: Safety of machinery Electrotechnical aspects. This edition constitutes a technical revision. It incorporates material from the fourth edition, amended to provide general requirements for machines, including mobile machines and complex (for example large) machine

44、 installations. This consolidated version of IEC 60204-1 consists of the fifth edition (2005) documents 44/494/FDIS and 44/502/RVD and its amendment 1 (2008) documents 44/575/CDV and 44/580/RVC. The technical content is therefore identical to the base edition and its amendment and has been prepared

45、for user convenience. It bears the edition number 5.1. SANS 60204-1:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60204-1 IEC:2005+A1:2008 7 A vertical line in the margin shows where the base publication has been modified by amendment 1

46、. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The following differences exist in some countries: 4.3.1: The voltage characteristics of electricity supplied by public distribution systems in Europe are given in EN 50160:1999. 5.1: Exception is not allowed (USA

47、). 5.1: TN-C systems are not permitted in low-voltage installations in buildings (Norway). 5.2: Terminals for the connection of the protective earthing conductors may be identified by the colour green, the letters “G” or “GR” or “GRD” or “GND”, or the word “ground” or “grounding”, or with the graphi

48、cal symbol IEC 60417-5019 (DB: 2002-10) or any combination (USA). 6.3.3 b), 13.4.5 b), 18.2.1: TT power systems are not allowed (USA). 7.2.3: Disconnection of the neutral conductor is mandatory in a TN-S system (France and Norway). 7.2.3: Third paragraph: distribution of a neutral conductor with an

49、IT system is not allowed (USA and Norway). 9.1.2: Maximum nominal a.c. control circuit voltage is 120 V (USA). 12.2: Only stranded conductors are allowed on machines, except for 0,2 mm2solid conductors within enclosures (USA). 12.2: The smallest power circuit conductor allowed on machines is 0,82 mm2(AWG 18) in multiconductor cables or in enclosures (USA). Table 5: Cross-sectional area is specified in ANSI/NFPA 79 using American Wire Gauge (AWG) (USA). See Annex G. 13