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1 INTERNATIONAL STANDARD IEC Third edition Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 6: Lift cables and cables for flexible connections This English-language version is derived from the original bilingual publication by leaving out all French-language pages. Missing page numbers correspond to the Frenchlanguage pages. Reference number IEC :2001(E)
2 INTERNATIONAL STANDARD IEC Third edition Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 6: Lift cables and cables for flexible connections IEC 2001 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: Telefax: Web: Commission Electrotechnique Internationale International Electrotechnical Commission Международная Электротехническая Комиссия R
3 IEC: CONTENTS FOREWORD Scope Normative references Flat polyvinyl chioride sheathed lift cable and cable for flexible connections Code designation Rated voltage Construction Conductor Insulation Arrangements of cores and strain-bearing members, if any Sheath Tests Pressure test at high temperature for sheaths Impact test on completed cable at low temperature Flexing test Static flexibility test Test of flame retardance Guide to use Circular polyvinyl chloride sheathed lift cable and cable for flexible connections Code designation Rated voltage Construction Conductor Insulation for the control and power cores Assembly of cores, central heart and telecommunication units and fillers, if any Covering of the core assembly Screen Sheath Tests Flexing test Static flexibility test Tensile strength of strain-bearing member Other tests Guide to use Annex A (normative) Fictitious calculation method for determination of the sheath dimension... 39
4 IEC: INTERNATIONAL ELECTROTECHNICAL COMMISSION POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V Part 6: Lift cables and cables for flexible connections FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the 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 National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC has been prepared by IEC technical committee 20: Electric cables. This third edition cancels and replaces the second edition, published in 1985, and its amendment 1, published in The text of this standard is based on the following documents: FDIS 20/466/FDIS Report on voting 20/474/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 3. Annex A forms an integral part of this standard.
6 IEC: POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V Part 6: Lift cables and cables for flexible connections 1 Scope This part of IEC details the particular specifications for both circular and flat lift cables and cables for flexible connections of rated voltages up to and including 450/750 V. Each cable complies with the appropriate requirements given in IEC , and with the particular requirements of this part of IEC Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC :1990, Radio-frequency cables Part 0-1: Guide to the design of detailed specifications Coaxial cables 1 IEC :1993, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 1: General requirements 2 IEC :1997, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 2: Test methods IEC 60228:1978, Conductors of insulated cables IEC :1993, Tests on electric cables under fire conditions Part 1: Test on a single vertical insulated wire or cable IEC :1997, Power cables with extruded insulation and their accessories for rated voltages from 1 kv (U m = 1,2 kv) up to 30 kv (U m = 36 kv) Part 1: Cables for rated voltages of 1 kv (U m = 1,2 kv) and 3 kv (U m = 3,6 kv) 3 1 A consolidated edition 2.1 exists (2000) that includes IEC (1990) and its amendment 1 (2000). 2 A consolidated edition 2.2 exists (1998) that includes IEC (1993), its amendment 1 (1995) and its amendment 2 (1998). 3 A consolidated edition 1.1 exists (1998) that includes IEC (1997) and its amendment 1 (1998).
7 IEC: IEC :1993, Common test methods for insulating and sheathing materials of electric cables Part 1: Methods for general application Section 1: Measurement of thickness and overall dimensions Tests for determining the mechanical properties IEC :1985, Common test methods for insulating and sheathing materials of electric cables Part 1: Methods for general application Section 2: Thermal ageing methods IEC :1985, Common test methods for insulating and sheathing materials of electric cables Part 1: Methods for general application Section 4: Test at low temperature IEC :1985, Common test methods for insulating and sheathing materials of electric cables Part 3: Methods specific to PVC compounds Section 1: Pressure test at high temperature Tests for resistance to cracking IEC :1985, Common test methods for insulating and sheathing materials of electric cables Part 3: Methods specific to PVC compounds Section 2: Loss of mass test Thermal stability test