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 0-626-14443-4 SANS 61386-22:2003 Edition 1 IEC 61386-22:2002 Edition 1 SOUTH AFRICAN NATIONAL STANDARD Conduit systems for cable manag
4、ement Part 22: Particular requirements Pliable conduits systems This national standard is the identical implementation of IEC 61386-22:2002 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 61386-22:2003 Edition 1 IEC 61386-22:2002 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. NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD61386-22Premire ditionFirst edition2002-02Systmes de conduitspour installations lectriques Parti
7、e 22:Rgles particulires Systmes de conduits cintrablesConduit systems for cable management Part 22:Particular requirements Pliable conduit systemsPour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2002 Droits de reproduction rservs Copyright - all rights reservedAucune partie d
8、e 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 m
9、echanical, 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 PRIXPR
10、ICE CODE MCommission Electrotechnique InternationaleInternational Electrotechnical Commission 61386-22 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
11、Construction .1310 Mechanical properties.1311 Electrical properties 1712 Thermal properties .1713 Fire effects .1714 External influences .1715 Electromagnetic compatibility17Figure 101 Bending test apparatus .19Figure 102 Gauge for checking the minimum inside diameter of the conduit systemafter impa
12、ct, bending, and resistance to heat tests 21Figure 103 Assembly of conduit and terminating conduit fitting for bonding test.23Table 101 Thread lengths.11Table 102 Maximum entry diameter and minimum entry length details 1361386-22 IEC:2002 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION_CONDUIT SYSTEMS F
13、OR CABLE MANAGEMENT Part 22: Particular requirements Pliable conduit systemsFOREWORD1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
14、international co-operation on all questions concerning standardization in the electrical and electronic fields. 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 t
15、he subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the International Organizationfor Standardization (ISO) in accordance with condit
16、ions determined by agreement between the twoorganizations.2) The formal decisions or agreements of the IEC 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
17、Committees.3) The documents produced have the form of recommendations for international use and are published 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,
18、 IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent 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
19、provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment 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
20、IEC shall not be held responsible for identifying any or all such patent rights.International Standard IEC 61386-22 has been prepared by subcommittee 23A: Cable manage-ment systems, of IEC technical committee 23: Electrical accessories.The text of this standard is based on the following documents:FD
21、IS Report on voting23A/370/FDIS 23A/373/RVDFull information on the voting for the approval of this standard 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 22, which specifies particular re
22、quirements for pliable conduit systems, is to be usedin conjunction with IEC 61386-1, Conduit systems for electrical installations Part 1: Generalrequirements, and its amendments 1. It was established on the basis of the first edition (1996)of that standard and its amendment 1 (2000)._1Please note t
23、hat the generic title of the IEC 61386 series has been changed to Conduit systems for cablemanagement since the publication of part 1, hence all other parts of the series are now published under this newtitle.61386-22 IEC:2002 7 This part 22 supplements or modifies the corresponding clauses of IEC 6
24、1386-1. Where aparticular clause or subclause of part 1 is not mentioned in this part 22, that clause orsubclause applies as far as is reasonable. Where this part 22 states “addition“, “modification“or “replacement“, the relevant text of part 1 is to be adapted accordingly.Subclauses, tables and fig
25、ures, which are in addition to those in part 1, are numbered startingwith 101.A conduit system which complies with this standard, is deemed safe for use when installed inaccordance with national wiring regulations, whilst applying the manufacturers installationinstructions and conduit classification
26、.NOTE The following print types are used: requirements: in roman type test specifications: in italic type notes: in 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; replac
27、ed by a revised edition, or amended.61386-22 IEC:2002 9 CONDUIT SYSTEMS FOR CABLE MANAGEMENT Part 22: Particular requirements Pliable conduit systems1 ScopeThis clause of part 1 is applicable, except as follows:Addition:This part of IEC 61386 specifies the requirements for pliable conduit systems in
28、cluding self-recovering conduit systems.2 Normative referencesThis clause of part 1 is applicable.3 DefinitionsThis clause of part 1 is applicable.4 General requirementsThis clause of part 1 is applicable.5 General conditions for testsThis clause of part 1 is applicable.6 ClassificationThis clause o
29、f part 1 is applicable, except as follows:6.1.1 1, 6.1.2 1, 6.1.3 1, 6.1.3 4, 6.1.4 1 and 6.1.5 1 are not applicable.NOTE Pliable conduit systems according to 6.1.1.2 and 6.1.2.2 and classification 1X from 6.2.1, table 1 are notallowed in France.7 Marking and documentationThis clause of part 1 is ap
30、plicable, 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 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 pack
31、aging.Compliance is checked by inspection.61386-22 IEC:2002 11 7.1.102 The manufacturer shall document for the system the minimum inside diameter andthe classification in accordance with clause 6.Compliance is checked by inspection.8 DimensionsReplacement:8.1 Threads shall comply with IEC 60423.Outs
32、ide diameters of non-metallic conduit shall comply with IEC 60423.Outside diameters of metallic and composite conduits need not comply with IEC 60423,provided that they are designed to be installed only with terminating conduit fittings havingthreads complying with IEC 60423.Compliance is checked by
33、 means of the gauges specified in IEC 60423.8.2 Threadable conduits and threadable conduit fittings, except terminating conduit fittings,shall comply with table 101. Non-threadable conduit fittings, except fittings which are part of aconduit system declaring tensile strength, shall comply with table
34、 102. The minimum insidediameter of the conduit system shall be as declared by the manufacturer.Compliance is checked by measurement.Table 101 Thread lengthsExternal thread Internal threadSizeMinimum lengthmmMinimum lengthmm681012162025324050637505,506,508,510,512,514,017,019,019,019,019,019,006,507
35、,509,511,513,515,018,020,020,020,020,020,061386-22 IEC:2002 13 Table 102 Maximum entry diameter and minimum entry length detailsExternal thread Internal threadSizeMaximum entry diametermmMinimum entry lengthmm681012162025324050637506,508,510,512,516,520,525,532,640,750,863,975,906,008,010,012,016,02
36、0,025,030,032,042,050,050,09 ConstructionThis clause of part 1 is applicable.10 Mechanical propertiesThis clause of part 1 is applicable, except as follows:10.2 Compression testFor self-recovering conduits, replace paragraphs 10.2.4, 10.2.5, 10.2.6, 10.2.7 and 10.2.8, bythe following:10.2.101 The in
37、termediate steel piece shall be subjected to a uniformly increasingcompression force (N) reaching the force indicated in table 4 after (30 3) s. The sample shallflatten by between 25 % and 50 % of its initial outside diameter.If the sample flattens by less than 25 %, an additional test is carried ou
38、t whereby theintermediate steel piece is lowered onto the sample at constant speed until the sample isflattened by (30 3) % after (30 3) s and the resultant force is measured.A new sample is subjected to the uniformly increasing force (N) reaching the force measuredabove after (30 3) s. The sample s
39、hall flatten by between 25 % and 50 % of its initial outsidediameter.The force and the intermediate steel piece shall then be removed. Fifteen minutes afterremoval, the outside diameter of the sample, where it has flattened, shall be measured again.61386-22 IEC:2002 15 After the test, the difference
40、 between the initial outside diameter and the outside diameter ofthe flattened sample shall not exceed 10 % of the outside diameter, as measured before thetest, and the sample shall show no cracks visible to normal or corrected vision withoutmagnification.10.4 Bending testReplacement:10.4.101 Condui
41、ts shall be subjected to a bending test by means of the apparatus as shownin figure 101.10.4.102 The test shall be made on six samples of conduit, the length of each sample beingat least:a) 30 times the nominal outside diameter for plain conduits;b) 12 times the nominal outside diameter for corrugat
42、ed conduits.Three of the samples shall be tested at ambient temperature; the other three shall be tested atthe minimum declared transport, application and installation temperature according to table 1,with a tolerance of 2 C.10.4.103 For the test at ambient temperature, the sample shall be clamped v
43、ertically in thebending apparatus as shown in figure 101. The sample shall be slowly bent by hand to the leftthrough an angle of (90 5), back to the vertical position, to the right through an angle of(90 5), and back to the vertical position. This sequence of operations shall be repeated threemore t
44、imes but at the end the sample shall not be bent back to the vertical position. Thesample shall be maintained in the bent position for 5 min, after which it shall be placed in sucha position that the straight portions are at an angle of (45 + 5) to the vertical, one end of thesample pointing upwards
45、 and the other downwards.For the test at the minimum declared transport, application and installation temperatureaccording to table 1, the sample clamped in the bending apparatus as shown in figure 101 shallbe conditioned for 2 h in a cold chamber at this temperature with a tolerance of 2 C.After th
46、e test, the sample shall show no cracks visible to normal or corrected vision withoutmagnification and it shall be possible to pass the appropriate gauge, as shown in figure 102,through the sample under its own weight and without any initial speed.10.5 Flexing testThis subclause of part 1 is not app
47、licable.10.6 Collapse testThis subclause of part 1 is not applicable.10.7 Tensile strengthThis subclause of part 1 is applicable, except as follows:10.7.3 Not applicable.61386-22 IEC:2002 17 11 Electrical propertiesThis clause of part 1 is applicable, except as follows:11.2 Bonding testReplacementA
48、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-load voltage notexceeding 12 V, shall be passed
49、through the assembly for 50min1+s. Then the voltage dropshall be measured between the points as shown in figure 103 and the resistance calculatedfrom the current and this voltage drop.The resistance shall not exceed 0,05 .Where special devices are required for the coupling of conduit and terminating conduit fittings,they shall be sufficient to remove the protective coating from the conduit, or the protectivefinish
