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. ICS 29.120.10 ISBN 0-626-14442-6 SANS 61386-23:2003 Edition 1 IEC 61386-23:2002 Edition 1 SOUTH AFRICAN NATIONAL STANDARD Conduit systems for cable manag
4、ement Part 23: Particular requirements Flexible conduit systems This national standard is the identical implementation of IEC 61386-23:2002 and is adopted with the permission of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloof ! private
5、bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa 2003 SANS 61386-23:2003 Edition 1 IEC 61386-23:2002 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Co
6、mmittee, STANSA SC 67C, Electrical accessories, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD61386-23Premire ditionFirst edition2002-02Systmes de conduitspour installations lectriques Parti
7、e 23:Rgles particulires Systmes de conduits souplesConduit systems for cable management Part 23:Particular requirements Flexible conduit systemsPour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2002 Droits de reproduction rservs Copyright - all rights reservedAucune partie de
8、cette publication ne peut tre reproduite niutilise sous quelque forme que ce soit et par aucun procd,lectronique ou mcanique, y compris la photocopie et lesmicrofilms, sans laccord crit de lditeur.No part of this publication may be reproduced or utilized in anyform or by any means, electronic or mec
9、hanical, includingphotocopying and microfilm, without permission in writing fromthe publisher.International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.chCODE PRIXPRIC
10、E CODE LCommission Electrotechnique InternationaleInternational Electrotechnical Commission 61386-23 IEC:2002 3 CONTENTSFOREWORD.51 Scope.92 Normative references93 Definitions 94 General requirements .95 General conditions for tests 96 Classification 97 Marking and documentation 98 Dimensions.119 Co
11、nstruction .1110 Mechanical properties.1111 Electrical properties 1312 Thermal properties .1513 Fire effects .1514 External influences .1515 Electromagnetic compatibility15Figure 101 Flexing test apparatus.17Figure 102 Gauge for checking the minimum inside diameter of the conduit systemafter impact
12、and resistance to heat tests .19Figure 103 Assembly of conduit and terminating conduit fitting for bonding test.2161386-23 IEC:2002 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION_CONDUIT SYSTEMS FOR CABLE MANAGEMENT Part 23: Particular requirements Flexible conduit systemsFOREWORD1) The IEC (Internatio
13、nal Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fi
14、elds. Tothis end and in addition to other activities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governm
15、ental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the International Organizationfor Standardization (ISO) in accordance with conditions determined by agreement between the twoorganizations.2) The formal decisions or agreements of the IEC
16、 on technical matters express, as nearly as possible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3) The documents produced have the form of recommendations for international use and are publis
17、hed in the formof standards, technical specifications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4) In order to promote international unification, IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent
18、 possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment
19、 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 subjectof patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.International Standard IEC
20、 61386-23 has been prepared by subcommittee 23A: Cablemanagement systems, of IEC technical committee 23: Electrical accessories.The text of this standard is based on the following documents:FDIS Report on voting23A/368/FDIS 23A/371/RVDFull information on the voting for the approval of this standard
21、can be found in the report onvoting indicated in the above table.This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.This part 23, which specifies particular requirements for flexible conduit systems, is to be usedin conjunction with IEC 61386-1, Conduit systems for c
22、able installations Part 1: GeneralRequirements 1, and its amendments. It was established on the basis of the first edition (1996)of that standard and its amendment 1 (2000)._1Please note that the generic title of the IEC 61386 series has been changed to Conduit systems for cablemanagement since the
23、publication of part 1, hence all other parts of the series are now published under this newtitle.61386-23 IEC:2002 7 This part 23 supplements or modifies the corresponding clauses of IEC 61386-1. Where aparticular clause or subclause of part 1 is not mentioned in this part 23, that clause orsubclaus
24、e applies as far as is reasonable. Where this part 23 states “addition“, “modification“or “replacement“, the relevant text of part 1 is to be adapted accordingly.Subclauses, tables and figures which are in addition to those in part 1 are numbered startingwith 101.A conduit system which complies with
25、 this standard, is deemed safe for use when installed inaccordance with national wiring regulations, whilst applying the manufacturers installationinstructions and conduit classification.NOTE The following print types are used: requirements: in roman type test specifications: in italic type notes: i
26、n small roman typeThe committee has decided that the contents of this publication will remain unchanged until2006-12. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.61386-23 IEC:2002 9 CONDUIT SYSTEMS FOR CABLE MANAGEMENT Part 23: Particular r
27、equirements Flexible conduit systems1 ScopeThis clause of part 1 is applicable, except as follows:Addition:This part of IEC 61386 specifies the requirements for flexible conduit systems.2 Normative referencesThis clause of part 1 is applicable.3 DefinitionsThis clause of part 1 is applicable.4 Gener
28、al requirementsThis clause of part 1 is applicable.5 General conditions for testsThis clause of part 1 is applicable.6 ClassificationThis clause of part 1 is applicable, except as follows:Subclauses 6.1.3 1, 6.1.3 2 and 6.1.3 3 are not applicable.NOTE Flexible conduit systems according to 6.1.1 1, 6
29、.1.1 2, 6.1.2 1, 6.1.2 2 and classification 1X from 6.2.1,table 1 are not allowed in France.7 Marking and documentationThis clause of part 1 is applicable, except as follows:Addition:7.1.101 The conduit shall be marked in accordance with 7.1 along its entire length at regularintervals of preferably
30、1 m but not longer than 3 m. Where this is technically impractical, themark shall be on a label attached to the product at each end, or on the packaging.Compliance is checked by inspection.61386-23 IEC:2002 11 7.1.102 The manufacturer shall document or add to the packaging for the system theminimum
31、inside diameter, the minimum bend radius and the classification in accordance withclause 6.Compliance is checked by inspection.8 DimensionsReplacement:8.1 Threads shall comply with IEC 60423.Compliance is checked by means of the gauges specified in IEC 60423.8.2 The minimum inside diameter of the co
32、nduit system shall be as declared by themanufacturer.Compliance is checked by measurement.9 ConstructionThis clause of part 1 is applicable.10 Mechanical propertiesThis clause of part 1 is applicable, except as follows:10.1 Mechanical strength10.1.1 Addition:NOTE Very light flexible conduits should
33、not be considered as providing adequate mechanical protection andshould not be used within the construction of buildings.10.4 Bending testThis subclause of part 1 is not applicable.10.5 Flexing test10.5.101 An assembly consisting of a conduit with a terminating conduit fitting, assembled inaccordanc
34、e with the manufacturers instructions, shall be subjected to a flexing test by meansof the apparatus shown in figure 101.10.5.102 The test shall be made on six samples of conduit of an appropriate length. Three ofthe samples shall be tested at the minimum declared transport, application and installa
35、tiontemperature as given in table 1 with a tolerance of 2 C. The other three samples shall betested at the maximum declared application and installation temperature as given in table 2with a tolerance of 2 C.61386-23 IEC:2002 13 A manufacturer may declare that a flexible conduit is suitable for tran
36、sport and installationaccording to table 1 but may only be suitable for flexing at ambient temperature as a minimum.In this case the test shall be carried out at (20 2) C and the 3rd digit of the classificationcode shall be X. The manufacturer shall clearly declare in his literature both the minimum
37、transport and installation temperature in accordance with table 1, the minimum applicationtemperature which is ambient and the maximum installation and application temperature inaccordance with table 2.10.5.103 The sample shall be fixed to the oscillating member by means of the terminatingconduit fi
38、tting as shown in figure 101, so that when the conduit is at the middle of its travel, theaxis of the conduit is vertical and passes through the axis of the oscillation. The apparatus withthe sample shall be conditioned for 2 h or until the sample has attained the declaredtemperature, whichever peri
39、od is the longer.10.5.104 The oscillating member shall be moved backwards and forwards through a totalangle of (180 5) divided equally about the vertical axis. The assembly shall be subjected to5 000 flexings at a rate of (40 5) flexings per minute. A flexing constitutes, starting from thevertical p
40、osition, one continuous cycle of movement of essentially sinusoidal forms.10.5.105 After the test, the sample shall show no sign of disintegration, nor shall there be anycracks visible to normal or corrected vision without magnification.10.6 Collapse testThis subclause of part 1 is not applicable.10
41、.7 Tensile strengthThis subclause of part 1 is applicable, except as follows:10.7.3 Replacement:For conduit systems where tensile strength is not declared, the tensile strength of the joint shallcomply with classification 1 in table 6.11 Electrical propertiesThis clause of part 1 is applicable, exce
42、pt as follows:11.2 Bonding testReplacement:A sample of a conduit and terminating conduit fitting shall be assembled in accordance with themanufacturers instructions and mounted as shown in figure 103. A current of 25 A, having afrequency of 50 Hz to 60 Hz, derived from an a.c. source having a no-loa
43、d voltage notexceeding 12 V, shall be passed through the assembly for (5060+) s. Then the voltage dropshall be measured between the points shown in figure 103 and the resistance calculated fromthe current and this voltage drop.The resistance shall not exceed 0,05 .61386-23 IEC:2002 15 Where special
44、devices are required for the coupling of conduit and conduit fittings, they shallbe sufficient to remove the protective coating from the conduit, or the protective finish shall beremoved in accordance with the manufacturers instructions.12 Thermal propertiesThis clause of part 1 is applicable, excep
45、t as follows:12.2.4 Replacement:The load is then removed and immediately after its removal it shall be possible to pass theappropriate gauge, in accordance with figure 102, through the conduit under its own weight andwithout any initial speed, with the sample in the vertical position.13 Fire effects
46、This clause of part 1 is applicable.14 External influencesThis clause of part 1 is applicable.15 Electromagnetic compatibilityThis clause of part 1 is applicable.61386-23 IEC:2002 17 dn32dsR1R2dsY2ZBA90901KeyA ConduitB Terminating fittingdsOutside diameter of conduit (A)dnInside diameter of support
47、block: 1,1 dsR1Radius of support block: 0,5 d,R2Radius of support block: 0,25 dsY Minimum bend radius, declared by the manufacturerZ 1,5 Y1 Oscillating member2 Guide support block3 Plan view of guide support blockNOTE This drawing is not intended to govern design except as regards the dimensions sho
48、wn.Figure 101 Flexing test apparatusIEC 505/0261386-23 IEC:2002 19 D 80 % of the manufacturers declared minimuminside diameter of the conduit systemMaterial Steel, hardened and polished, edges slightlyroundedManufacturing tolerancemm05,00+Tolerance and axial dimension 0,2 mmAdmissible wear 0,01 mmNO
49、TE This drawing is not intended to govern design except as regards the dimensions shown.Figure 102 Gauge for checking the minimum inside diameter of the conduit systemafter impact and resistance to heat testsIEC 475/0261386-23 IEC:2002 21 321VXX4A25A 50/60 HzKeyX 12 mm 2 mm1 3 mm steel plate2 Optional locknut3 Terminating conduit fitting secured to plateby tapped hole or by locknut on fitting thre
