1、 IEC 60715 Edition 2.0 2017-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Dimensions of low-voltage switchgear and controlgear Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories Dimensions de lappareillage basse tension Montage normalis sur profils- sup
2、ports pour le support mcanique des appareillages et de leurs accessoires IEC 60715:2017-07(en-fr) HORIZONTAL STANDARD NORME HORIZONTALE THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be
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20、nsions of low-voltage switchgear and controlgear Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories Dimensions de lappareillage basse tension Montage normalis sur profils- supports pour le support mcanique des appareillages et de leurs accessoires INTERN
21、ATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.130.20 ISBN 978-2-8322-4646-7 HORIZONTAL STANDARD NORME HORIZONTALE Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make
22、sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60715:2017 IEC 2017 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Fun
23、ctional requirements 8 5 Standard dimensions . 8 5.1 General . 8 5.2 Top hat section . 9 5.3 “C“ section 10 5.4 “G“ section 13 Annex A (normative) Specific steel mounting rails . 14 A.1 General . 14 A.2 Top hat section rail TH 15-5,5 14 A.2.1 Dimensions 14 A.2.2 Tolerances 15 A.3 Top hat section rai
24、l TH 35-7,5 and TH 35-15 . 15 A.3.1 Dimensions 15 A.3.2 Tolerances 16 A.4 Top hat section rail TH 75-25 . 16 A.4.1 Dimensions 16 A.4.2 Tolerances 17 A.5 “C“ section rails: C 20, C 30, C 40 and C 50 . 17 A.5.1 Dimensions 17 A.5.2 Tolerance 18 A.6 “G“ section rail: G 32 18 A.6.1 Dimensions 18 A.6.2 To
25、lerances 19 Annex B (informative) Application guide . 20 B.1 General . 20 B.2 Guidance for use of top hat rails . 20 B.2.1 For steel rails in Annex A . 20 B.2.2 For rails other than steel rails 23 B.3 Guidance for use of “C“ section rails . 23 B.3.1 General . 23 B.3.2 For steel rails to Annex A 23 B
26、3.3 For rails other than steel rails 27 Bibliography 28 Figure 1 Mounting rail TH 15 9 Figure 2 Mounting rail TH 35 9 Figure 3 Mounting rail TH 75 10 Figure 4 Mounting rail C 20 10 Figure 5 Mounting rail C 30 11 Figure 6 Mounting rail C 40 11 IEC 60715:2017 IEC 2017 3 Figure 7 Mounting rail C 50 12
27、 Figure 8 Mounting rail G 32 13 Figure A.1 Top hat rails 15 mm wide for snap-on mounting of equipment 15 Figure A.2 Tolerances (TH 15-5,5) . 15 Figure A.3 Top hat rails 35 mm wide for snap-on mounting of equipment 16 Figure A.4 Tolerances (TH 35-7,5 and TH 35-15) . 16 Figure A.5 Top hat rail 75 mm w
28、ide for snap-on mounting of equipment 17 Figure A.6 Tolerances (TH 75-25) 17 Figure A.7 “C“ section rails 18 Figure A.8 Tolerances (C 20, C 30, C 40 and C 50) . 18 Figure A.9 Dimensions of “G“ section rails . 19 Figure A.10 Tolerances (G 32) . 19 Figure B.1 Assessment of rail deflection 21 Figure B.
29、2 Permissible load capacity M E= f(L,h) . 22 Figure B.3 Permissible load capacity M E= f(L,h) . 23 Figure B.4 Assessment of rail deflection 24 Figure B.5 Permissible load capacity M E= f(L) 25 Figure B.6 Assembly of two identical “C“ section rails Assessment of the deflection 26 Figure B.7 Assembly
30、of two identical “C“ section rails Permissible stress M E= f(L) for H = 100 mm . 27 Table A.1 Dimensions of “C” section rails . 18 Table B.1 Maximum torque M max24 4 IEC 60715:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DIMENSIONS OF LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDIZED
31、MOUNTING ON RAILS FOR MECHANICAL SUPPORT OF SWITCHGEAR, CONTROLGEAR AND ACCESSORIES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to p
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39、 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 or
40、 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 f
41、or 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 60715 has been p
42、repared by subcommittee 121A: Low-voltage switchgear and controlgear, of IEC technical committee 121: Switchgear and controlgear and their assemblies for low voltage. This second edition cancels and replaces the first edition published in 1981 and Amendment 1:1995. This edition constitutes a technic
43、al revision. This edition includes the following significant technical changes with respect to the previous edition: a) the electrical function of the rail for protective earthing is covered by the relevant product standard. b) The document has been editorially updated to bring it into compliance wi
44、th the ISO/IEC Directives, Part 2:2016, and drawings have been updated to bring them in compliance with ISO tolerancing and drawing standards. IEC 60715:2017 IEC 2017 5 It has the status of a horizontal standard in accordance with IEC Guide 108. The text of this International Standard is based on th
45、e following documents: FDIS Report on voting 121A/153/FDIS 121A/163/RVD Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
46、The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised editio
47、n, or amended. 6 IEC 60715:2017 IEC 2017 INTRODUCTION This document is provided as a horizontal standard. It is necessary to define standardized mounting on rails for mechanical support of low-voltage switchgear and controlgear, electrical accessories, and similar devices. The user wants them to be
48、easy to fix, remove and rearrange. Two methods are used for fixing a device on a rail: either directly by clipping on the rail (this method is particularly suitable for “top hat“ rails or “G“ rails); or by means of a variety of accessories such as sliding nuts and hooked or T-headed bolts (this meth
49、od is particularly suitable for “C“ rails). In the case of “G“ rails, the first of these methods has been mainly used for mounting terminal blocks which snap in and out of position and are clamped in rows by adjustable end stops. The rail can take the form of a standard section as an integral part of the enclosure. Rails are also available of composite sections that combine, fo
