1、IEC 61537-Edition 3.0 2023-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Cable management-Cable tray systems and cable ladder systems Systemes de cablage-Systemes de chemin de cables et systemes dechelle a cables THIS PUBLICATION IS COPYRIGHT PROTECTED Ln Copyright 2023 IEC,Geneva,Switzerland All r
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16、icles terminologiques en anglais et en franc;:ais,ainsi que les termes equivalents dans 19 langues additionnelles.Egalement appele Vocabulaire Electrotechnique International(IEV)en ligne.IEC 61537-INTERNATIONAL STANDARD NORME INTERNATIONALE Edition 3.0 2023-01 Cable management-Cable tray systems and
17、 cable ladder systems Systemes de cablage-Systemes de chemin de cables et systemes dechelle a cables INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.120.10 ISBN 978-2-8322-6364-8 Warning!Make sure that you obtained this publication from an authorized distr
18、ibutor.Attention!Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agree.Registered trademark of the International Electrotechnical Commission Marque deposee de la Commission Electrotechnique Internationale-2-IEC 61537:2023 IEC 2023 CONTENTS FOREWORD.8 1 Scope.10 2 Nor
19、mative references.10 3 Terms and definitions.11 4 General requirements.15 5 General conditions for tests.15 6 Classification.16 6.1 According to material.16 6.2 According to resistance to flame propagation.16 6.3 According to electrical continuity characteristics.16 6.4 According to electrical condu
20、ctivity.17 6.5 According to resistance against corrosion.17 6.5.1 General.17 6.5.2 Non-metallic system component.17 6.5.3 Metallic system component.17 6.6 According to temperature.21 6.6.1 Minimum temperature for the system component as given in Table 3.21 6.6.2 Maximum temperature for the system co
21、mponent as given in Table 4.21 6.7 According to the perforation in the base area of the cable tray length as given in Table 5.21 6.8 According to the free base area of mesh cable tray length or cable ladder length as given in Table 6.22 6.9 According to impact resistance of non-metallic and composit
22、e systems.22 7 Marking and documentation.22 7.1 Marking.22 7.1.1 General.22 7.1.2 Durability of marking.23 7.2 Documentation.24 8 Dimensions.25 9 Construction.26 10 Mechanical properties.27 10.1 Mechanical strength.27 10.2 SWL test procedure.28 10.2.1 General.28 10.2.2 10.2.3 General procedure.28 Al
23、ternative test conditions for 10.2.2.36 10.3 Test for SWL of cable tray lengths and cable ladder lengths mounted in the horizontal plane running horizontally on multiple spans.37 10.3.1 General.37 10.3.2 Test type I.37 10.3.3 Test type II.38 10.3.4 10.3.5 Test type Ill.39 Test type IV.40 10.4 Test f
24、or SWL of cable tray systems and cable ladder systems mounted in the horizontal plane running horizontally on a single span installation.41 10.5 Test for SWL of cable tray system and cable ladder system mounted in the vertical plane running horizontally.42 IEC 61537:2023 IEC 2023-3-10.5.1 Multiple s
25、pan test.42 10.5.2 Single span test.45 10.6 Test for SWL of cable tray system and cable ladder system mounted in the vertical plane running vertically.51 10.7 Test for SWL of cable tray fittings and cable ladder fittings mounted in the horizontal plane running horizontally.56 10.7.1 General.56 10.7.
26、2 Test for SWL of 90 bend.57 10.7.3 Test for SWL of equal tee and equal cross.57 10.8 Test for SWL of support devices.59 10.8.1 General.59 10.8.2 10.8.3 Test for SWL of cantilever brackets.59 Test for SWL of pendants ceiling mounted.76 10.9 Test for impact resistance.94 11 Electrical properties.98 1
27、1.1 Electrical continuity.98 11.1.1 General.98 11.1.2 Electrical impedance tests.98 11.2 Electrical non-conductivity.104 11.2.1 General.104 11.2.2 11.2.3 11.2.4 11.2.5 11.2.6 Preparation of samples.105 Preparation of electrodes.105 Humidity treatment of samples.105 Mounting of electrodes on samples.
28、105 Measurement of surface resistance.106 11.2.7 Calculation of surface resistivity.106 12 Thermal properties.107 13 Fire hazards.107 13.1 Reaction to fire.107 13.1.1 13.1.2 13.1.3 Initiation of fire.107 Contribution to fire.107 Spread of fire.107 13.1.4 Additional reaction to fire characteristics.1
29、10 13.2 Resistance to fire.111 14 External influences.111 14.1 Resistance against environmental forces.111 14.2 Resistance against corrosion.111 14.2.1 General.111 14.2.2 14.2.3 14.2.4 Non-metallic system components.112 System components made of mild steel with metallic coating or stainless steel.11
30、2 Salt spray test.113 14.2.5 System components made from aluminium alloys.113 14.2.6 System components made of steel with organic coating.113 15 Electromagnetic compatibility(EMC).114 Annex A(informative)Sketches of typical types of cable tray lengths and cable ladder lengths.115 Annex B(informative
31、)Sketches of typical support devices.117 Annex C(normative)Protective Earth(PE)function.120-4-IEC 61537:2023 IEC 2023 C.1 General.120 C.2 Cable tray system or cable ladder system with electrical continuity characteristics and with PE function.120 C.2.1 Construction.120 C.2.2 Marking and documentatio
32、n.121 C.2.3 Requirements for periodic inspection.121 C.2.4 Electrical properties.122 C.2.5 Validation test of the calculated equivalent copper cross-sectional area of the system.123 Annex D(normative)Methods of applying and distributing a UDL for SWL tests using load distribution plates.126 D.1 Gene
33、ral.126 D.2 Dimensions of load distribution plates for cable tray and cable ladder mounted in the horizontal plane.126 D.3 Distribution of point loads across the width of cable tray,cable ladder and support.126 D.4 Distribution of point loads along the length of cable tray.127 D.5 Distribution of point loads along the length of the cable ladder.129 Annex E(informative)Typical methods of applying a
