1、 IEC 62444 Edition 1.0 2010-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Cable glands for electrical installations Presse-toupes pour installations lectriques IEC 62444:2010 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specif
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16、NAL STANDARD NORME INTERNATIONALE Cable glands for electrical installations Presse-toupes pour installations lectriques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 29.120.10 PRICE CODE CODE PRIX ISBN 978-2-88912-151-9 Registered trademark of the Interna
17、tional Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 62444 IEC:2010 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references .6 3 Terms and definitions .6 4 General requirements.7 5 General conditions for tests8 6 Classification9 6.1 According to material.9
18、6.2 According to mechanical properties.9 6.3 According to electrical properties 10 6.4 According to resistance to external influences.10 6.5 According to sealing system10 7 Marking and documentation11 7.1 Marking .11 7.2 Durability and legibility 11 7.3 Documentation 11 8 Construction.12 9 Mechanica
19、l properties 12 9.1 General .12 9.2 Cable retention test .13 9.3 Cable anchorage test for non-armoured cable .15 9.4 Cable anchorage test for armoured cable 17 9.5 Resistance to impact .19 9.6 Seal performance22 10 Electrical properties22 10.1 Equipotential bonding to electrical equipment22 10.2 Equ
20、ipotential bonding to metallic layer(s) of cable.22 10.3 Protective connection to earth .23 10.3.1 General .23 10.3.2 Electrical current test.23 11 Electromagnetic compatibility .24 12 External influences.25 12.1 Degree of protection in accordance with IEC 60529 (IP Code).25 12.1.1 General .25 12.1.
21、2 Degree of protection against foreign solid objects25 12.1.3 Degree of protection against ingress of water25 12.2 Resistance to corrosion.25 12.3 Resistance to ultraviolet light.25 13 Fire hazard.26 13.1 Reaction to fire26 13.1.1 General .26 13.1.2 Contribution to fire.26 13.1.3 Spread of fire 26 1
22、3.2 Resistance to fire 26 62444 IEC:2010 3 Annex A (normative) Particular requirements for cable glands for electrical installations with NPT entry threads27 Annex B (informative) Test sequence.28 Bibliography29 Figure 1 Typical arrangement for cable retention test.14 Figure 2 Typical arrangement fo
23、r cable anchorage pull test .16 Figure 3 Typical arrangement for cable anchorage twist test17 Figure 4 Typical arrangement for cable anchorage test for armoured cable18 Figure 5 Typical arrangement for impact test .21 Figure 6 Typical arrangement for electrical current tests 24 Table 1 Clearance hol
24、es for cable glands for test purposes .9 Table 2 Pull forces for cable retention and cable anchorage 15 Table 3 Torque value for cable anchorage twist test 17 Table 4 Impact values20 Table 5 Electrical current values 23 Table A.1 Clearance holes for NPT cable glands for test purposes 27 4 62444 IEC:
25、2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CABLE GLANDS FOR ELECTRICAL INSTALLATIONS 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
26、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, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) a
27、nd Guides (hereafter referred to as “IEC Publication(s)”). 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 t
28、he IEC also participate in this preparation. 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 IEC on technical matters express, as nearl
29、y as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that
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32、 attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edi
33、tion of 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 di
34、rect or 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 indispen
35、sable for 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 62444 has
36、 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 Report on voting 23A/606/FDIS 23A/618/RVD Full information on the voting for the approval of this standard can be f
37、ound in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. NOTE The following print types are used: requirements: in roman type; test specifications: in italic type; notes: in small roman type. 62444 IEC:2010 5 The
38、committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised
39、edition, or amended. 6 62444 IEC:2010 CABLE GLANDS FOR ELECTRICAL INSTALLATIONS 1 Scope This Standard provides requirements and tests for the construction and performance of cable glands. This standard covers complete cable glands as supplied by the manufacturer or the supplier responsible for placi
40、ng the product on the market. This standard does not cover cable glands for mineral insulated cables. This standard covers cable glands with IEC 60423 metric entry threads. This standard can be used as a guide for cable glands with other type of entry threads. NOTE Certain cable glands may also be u
41、sed “in Hazardous Areas.” Regard should then be taken of other or additional requirements necessary for the enclosure to be installed in such conditions, for example as specified in the IEC 60079 series. 2 Normative references The following referenced documents are indispensable for the application
42、of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60423:2007, Conduit systems for cable management Outside diameters of conduits for electrical installations and thread
43、s for conduits and fittings IEC 60529:1989, Degrees of protection provided by enclosures (IP Code) Amendment 1 (1999) 1IEC 60695-2-11:2000, Fire hazard testing Part 2-11: Glowing/hot-wire based test methods Glow-wire flammability test method for end-products ISO 868:2003, Plastics and ebonite Determ
44、ination of indentation hardness by means of durometer (Shore hardness) ISO 4287:1997, Geometrical product specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO 9227:2006, Corrosion tests in artificial atmospheres Salt spray tests 3 Terms and defin
45、itions For the purposes of this document, the following definitions apply. 3.1 cable gland a device designed to permit the entry of a cable, flexible cable or insulated conductor into an enclosure, and which provides sealing and retention. It may also provide other functions such as earthing, bondin
46、g, insulation, cable guarding, strain relief or a combination of these _ 1There is a consolidated edition 2.1 (2001) that includes IEC 60529 (1989) and its amendment 1 (1999). 62444 IEC:2010 7 3.2 entry thread the threaded portion of a cable gland which is intended to be attached to an enclosure or
47、equipment 3.3 cable gland size the nominal diameter of the entry thread 3.4 cable retention the minimum ability of a cable gland to limit the displacement of a fitted cable under static load 3.5 cable anchorage the ability of a cable gland to limit the displacement of a fitted cable under dynamic an
48、d torque loads 3.6 series cable glands of the same classification and design but with different dimensions 3.7 clearance hole unthreaded opening in an enclosure or equipment intended to permit entry of a cable gland 3.8 metallic cable gland cable gland which consists of metallic material only NOTE S
49、ealing systems are excluded from this definition. 3.9 non-metallic cable gland cable gland which consists of non-metallic material only NOTE Sealing systems are excluded from this definition. 3.10 composite cable gland cable gland comprising both metallic and non-metallic materials NOTE Sealing systems are excluded from this definition. 3.11 single-orifice seal seal with one orifice su
