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1 INTERNATIONAL STANDARD IEC First edition Cable trunking and ducting systems for electrical installations Part 2-2: Particular requirements Cable trunking systems and cable ducting systems intended for underfloor and flushfloor installations 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 :2003(E)
2 INTERNATIONAL STANDARD IEC First edition Cable trunking and ducting systems for electrical installations Part 2-2: Particular requirements Cable trunking systems and cable ducting systems intended for underfloor and flushfloor installations IEC 2003 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 PRICE CODE For price, see current catalogue U
3 IEC: CONTENTS FOREWORD Scope Normative references Definitions General requirements General conditions for tests Classification Marking Dimensions Construction Mechanical properties Resistance to flame propagation Electrical characteristics External influences...29 Annex A (informative)...51 Annex AA (informative) Mechanical load tests for underfloor and flushfloor cable trunking systems and cable ducting systems...53 Figure 101 Types and application of cable trunking systems and cable ducting systems for underfloor and flushfloor installations...33 Figure 102 Examples of trunking and ducting installations...35 Figure 103 Example of underfloor cable trunking system or cable ducting system according to Figure 104 Example of flushfloor cable trunking system or cable ducting system according to Figure 105 Impact test apparatus of pendulum hammer type for test of Figure 106 Load test set-up for underfloor cable ducting lengths in accordance with Figure 107 Load test set-up for flushfloor cable trunking and ducting lengths in accordance with Figure 108 Load test set-up for flushfloor cable trunking and ducting lengths in accordance with Figure 109 Arrangement for testing the fixing for apparatus mounting according to Table 101 Impact test values...23 Table 102 Forces for traffic load test...25
4 IEC: INTERNATIONAL ELECTROTECHNICAL COMMISSION CABLE TRUNKING AND DUCTING SYSTEMS FOR ELECTRICAL INSTALLATIONS Part 2-2: Particular requirements Cable trunking systems and cable ducting systems intended for underfloor and flushfloor installations 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 subcommittee 23A: Cable management systems, of IEC technical committee 23: Electrical accessories. The text of this standard is based on the following documents: FDIS 23A/428/FDIS Report on voting 23A/431/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 2. This Part 2-2 is intended to be used in conjunction with IEC :1991, Cable trunking and ducting systems for electrical installations Part 1: General requirements, and its Amendment 1 (1993). This Part 2-2 supplements or modifies the corresponding clauses in IEC , so as to convert that publication into the IEC standard: Particular requirements for cable trunking systems and cable ducting systems intended for underfloor and flushfloor installations.
5 IEC: Where a particular subclause of Part 1 is not mentioned in this Part 2-2, that subclause applies as far as is reasonable. Where this part states addition, modification or replacement, the relevant requirement, test specification or note should be adapted accordingly. In this standard: 1) the following print types are used: requirements: in roman type; test specifications: in italic type; notes: in small roman type; 2) subclauses, tables and figures which are in addition to those in Part 1 are numbered starting with 101; additional annexes are lettered starting from AA. The committee has decided that the contents of this publication will remain unchanged until At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.
6 IEC: CABLE TRUNKING AND DUCTING SYSTEMS FOR ELECTRICAL INSTALLATIONS Part 2-2: Particular requirements Cable trunking systems and cable ducting systems intended for underfloor and flushfloor installations 1 Scope This clause of Part 1 is replaced by: This part of IEC specifies requirements for cable trunking systems and cable ducting systems intended for the accommodation, and where necessary for the segregation, of conductors, cables or cords and/or other electrical equipment in electrical installations. This standard applies to cable trunking systems and cable ducting systems which are mounted beneath or flush with the top face of the finished floor, including their system components. This specification does not apply to conduits, cable trays or cable ladders or to current-carrying parts within the system. NOTE 1 Types and applications are shown in Figures 101, 102. NOTE 2 There are many different designs of systems (see Figure 101) for which a part 2 is under consideration. NOTE 3 Systems partly or totally above the floor are not covered by this Part 2-2 but may be covered by an amendment to this part or by another part 2. 2 Normative references This clause of Part 1 is applicable except as follows: Addition: IEC :1995, Environmental testing Part 2: Tests Test Ke : Flowing mixed gas corrosion test Basic safety publication
INTERNATIONAL STANDARD IEC 60811-1-2 First edition 1985 Common test methods for insulating and sheathing materials of electric cables Part 1-2: Methods for general application Thermal ageing methods This