SIST EN 61537:2007
(Main)Cable management - Cable tray systems and cable ladder systems
Cable management - Cable tray systems and cable ladder systems
This International Standard specifies requirements and tests for cable tray systems and cable ladder systems intended for the support and accommodation of cables and possibly other electrical equipment in electrical and/or communication systems installations. Where necessary, cable tray systems and cable ladder systems may be used for the division or arrangement of cables into groups.
Führungssysteme für Kabel und Leitungen - Kabelträgersysteme für elektrische Installationen
Systèmes de câblage - Systèmes de chemin de câbles et systèmes d'échelle à câbles
Cette Norme internationale spécifie les exigences et les essais pour les systèmes de chemin de câbles et les systèmes d'échelle à câbles prévus pour le support, le logement des câbles et éventuellement d'autres équipements électriques dans des installations électriques et/ou des systèmes de communication. Si nécessaire, les systèmes de chemin de câbles et les systèmes d'échelle à câbles peuvent être utilisés pour la séparation ou le regroupement de câbles.
Urejanje okablenja – Sistemi kabelskih polic in kabelskih lestvic (IEC 61537:2006)
Ta mednarodni standard je osredotočen na zahteve in preskuse za sisteme kabelskih polic in kabelskih lestev namenjenih za nošenje in polaganje kablov in morda tudi druge električne opreme v električnih in/ali komunikacijskih sistemih inštalacij. Kjer je potrebno so lahko sistemi kabelskih polic in kabelskih lestvic uporabljeni za ločitev ali razporeditev kablov v skupine. Ta standard se ne nanaša na cevne sisteme, sisteme kabelskih korit in kabelskih kanalov ali kakšne druge prenašalce toka.
General Information
Relations
Standards Content (Sample)
SLOVENSKI SIST EN 61537:2007
STANDARD
marec 2007
Urejanje okablenja – Sistemi kabelskih polic in kabelskih lestvic (IEC
61537:2006)
Cable management - Cable tray systems and cable ladder systems (IEC
61537:2006)
ICS 29.120.10 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
EUROPEAN STANDARD
EN 61537
NORME EUROPÉENNE
January 2007
EUROPÄISCHE NORM
ICS 29.120.10 Supersedes EN 61537:2001
English version
Cable management -
Cable tray systems and cable ladder systems
(IEC 61537:2006)
Systèmes de câblage - Führungssysteme für Kabel
Systèmes de chemin de câbles und Leitungen -
et systèmes d'échelle à câbles Kabelträgersysteme
(CEI 61537:2006) für elektrische Installationen
(IEC 61537:2006)
This European Standard was approved by CENELEC on 2006-12-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61537:2007 E
Foreword
The text of document 23A/513/FDIS, future edition 2 of IEC 61537, prepared by SC 23A, Cable
management systems, of IEC TC 23, Electrical accessories, was submitted to the IEC-CENELEC parallel
vote and was approved by CENELEC as EN 61537 on 2006-12-01.
This European Standard supersedes EN 61537:2001.
It incorporates additional tables, annexes and figures as well as revisions to such that appeared in
EN 61537:2001. In places, the text has been substantially altered including:
– the classification system,
– tests for resistance against corrosion,
– re-written SWL test procedure,
– re-written section on electrical non-conductivity.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-09-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-12-01
with the EN have to be withdrawn
Annexes ZA and ZB have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61537:2006 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60093 NOTE Harmonized as HD 429 S1:1983 (not modified).
ISO 14713 NOTE Harmonized as EN ISO 14713:1999 (not modified).
__________
- 3 - EN 61537:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60068-2-75 1997 Environmental testing EN 60068-2-75 1997
Part 2-75: Tests - Test Eh: Hammer tests
IEC 60364-5-52 2001 Electrical installations of buildings - -
Part 5-52: Selection and erection of electrical
equipment - Wiring systems
IEC 60695-2-11 2000 Fire hazard testing EN 60695-2-11 2001
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for end-products
IEC 60695-11-2 2003 Fire hazard testing EN 60695-11-2 2003
Part 11-2: Test flames - 1 kW nominal pre-
mixed flame - Apparatus, confirmatory test
arrangement and guidance
ISO 1461 1999 Hot dip galvanized coatings on fabricated EN ISO 1461 1999
iron and steel articles - Specifications and test
methods
ISO 2178 1982 Non-magnetic coatings on magnetic EN ISO 2178 1995
substrates - Measurement of coating
thickness - Magnetic method
ISO 2808 1997 Paints and varnishes - Determination of film EN ISO 2808 1999
thickness
ISO 4046 Series Paper, board, pulp and related terms - - -
Vocabulary
1)
1990 Corrosion tests in artificial atmospheres - Salt - -
ISO 9227
spray tests
ISO 10289 1999 Methods for corrosion testing of metallic and EN ISO 10289 2001
other inorganic coatings on metallic
substrates - Rating of test specimens and
manufactured articles subjected to corrosion
tests
1)
ISO 9227 is superseded by ISO 9227:2006.
Annex ZB
(informative)
A-deviations
A-deviation: National deviation due to regulations, the alteration of which is for the time being outside the
competence of the CENELEC member.
This European Standard falls under Directive 73/23/EEC.
NOTE (from CEN/CENELEC IR Part 2:2006, 2.17) Where standards fall under EC Directives, it is the view of the Commission of
the European Communities (OJ No C 59, 1982-03-09) that the effect of the decision of the Court of Justice in case 815/79
Cremonini/Vrankovich (European Court Reports 1980, p. 3583) is that compliance with A-deviations is no longer mandatory and that
the free movement of products complying with such a standard should not be restricted except under the safeguard procedure
provided for in the relevant Directive.
A-deviations in an EFTA-country are valid instead of the relevant provisions of the European Standard in
that country until they have been removed.
Clause Deviation
6.2.1 France (Decree from Equipment and Accommodation Minister for low voltage installations
dated 22 October 1969)
Classification not allowed.
Annex C France (Decree from Equipment and Accommodation Minister for low voltage installations
dated 22 October 1969)
The use of cable tray systems and cable ladder systems as a PE conductor is not allowed.
__________
NORME CEI
INTERNATIONALE
IEC
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2006-10
Systèmes de câblage –
Systèmes de chemin de câbles
et systèmes d’échelle à câbles
Cable management –
Cable tray systems and
cable ladder systems
© IEC 2006 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
61537 © IEC:2006 – 3 –
CONTENTS
FOREWORD.9
1 Scope.13
2 Normative references.13
3 Terms and definitions .15
4 General requirements .19
5 General conditions for tests .21
6 Classification .23
7 Marking and documentation .29
8 Dimensions.31
9 Construction .33
10 Mechanical properties.35
11 Electrical properties .59
12 Thermal properties .63
13 Fire hazards .63
14 External influences .67
15 Electromagnetic compatibility (EMC) .71
Annex A (informative) Sketches of typical cable tray lengths and cable ladder lengths . 107
Annex B (informative) Sketches of typical support devices. 109
Annex C (informative) Protective earth (PE) function . 113
Annex D (normative) Methods of applying and distributing a UDL for SWL tests using
load distribution plates . 115
Annex E (informative) Typical methods of applying a UDL for SWL tests. 131
Annex F (informative) Example for the determination of TDF . 135
Annex G (informative) Example for clarification of allowed creep . 139
Annex H (informative) Information for a safe installation of pendants with cantilever
brackets. 141
Annex I (informative) Summary of compliance checks . 145
Annex J (normative) Compliance checks to be carried out for cable tray systems and
cable ladder systems already complying with IEC 61537:2001 . 149
Annex K (informative) Environmental categories and corrosion rates for zinc only
galvanising. 153
Annex L (informative) Illustrative flow chart for the SWL tests. 155
Bibliography . 161
Figure 1 – Safe working load test − General arrangement.73
Figure 2 – Safe working load test types I, II and III (see 10.3.1 to 10.3.3).77
Figure 3 – Safe working load test IV (see 10.3.4).79
Figure 4 – Safe working load for single span test (see 10.4) .79
61537 © IEC:2006 – 5 –
Figure 5 – Safe working load test for fittings .85
Figure 6 – Test set-up for cantilever brackets .91
Figure 7 – Test set-up for pendants.93
Figure 8 – Impact test stroke arrangement .95
Figure 9 – Test set-up for electrical continuity.97
Figure 10 – Arrangement for the flame test.99
Figure 11 – Enclosure for the flame test . 101
Figure 12 – Load and temperature diagrams with respect to time for test 10.2.1.3. 103
Figure 13 – Typical arrangement of surface resistivity test . 105
Figure A.1 – Solid bottom cable tray lengths . 107
Figure A.2 – Perforated cable tray lengths . 107
Figure A.3 – Mesh cable tray lengths. 107
Figure A.4 – Cable ladder lengths. 107
Figure B.1 – Cantilever brackets. 109
Figure B.2 – Pendants. 111
Figure B.3 – Fixing brackets. 111
Figure D.1 – Examples of distribution load points across the width. 115
Figure D.2 – Typical arrangement of load distribution plates . 117
Figure D.3 – Example of equispaced point loads along the length . 119
Figure D.4 – Examples of test load distribution on cable ladder lengths. 121
Figure D.5 – n rungs. 123
Figure D. 6 – Example of loading on three rungs . 125
Figure D.7 – Two rungs . 127
Figure D.8 – One rung. 127
Figure D.9 – Cantilever with extension. 129
Figure E.1 – Point loads applied through a mechanical linkage (testing upside down). 131
Figure E.2 – Point loads applied individually . 133
Figure E.3 – Block loads . 133
Figure G.1 – Example for clarification of allowed creep. 139
Figure H.1 – Forces on pendant and cantilever bracket. 141
Figure H.2 – Illustration of the safe area. 143
Table 1 – classification for resistance against corrosion.25
Table 2 – Minimum temperature classification .25
Table 3 – Maximum temperature classification .27
Table 4 – Perforation base area classification.27
Table 5 – Free base area classification .27
Table 6 – Impact test values.59
Table 7 – System component compliance and classification for resistance against
corrosion.67
Table 8 – Zinc coating thickness of reference materials .69
61537 © IEC:2006 – 7 –
Table 9 – Salt spray test duration .71
Table D.1 – Number of point loads across the width . 115
Table D.2 – Number of point loads along the length. 117
Table F.1 – Manufacturer’s declared sizes. 135
Table F.2 – Cable tray length, 100 mm wide . 135
Table F.3 – Cable tray, 400 mm wide . 137
Table I.1 – Summary of compliance checks . 145
Table J.1 – Required compliance checks. 149
Table K.1 – Environmental categories and corrosion rates for zinc only galvanising . 153
61537 © IEC:2006 – 9 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE MANAGEMENT −
CABLE TRAY SYSTEMS AND CABLE LADDER SYSTEMS
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 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) and 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 the 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 nearly 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 sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition 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 direct 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
indispensable 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 61537 has been prepared by subcommittee 23A: Cable manage-
ment systems, of IEC technical committee 23: Electrical accessories.
This second edition cancels and replaces the first edition published in 2001. This edition
constitutes a technical revision. It incorporates additional tables, annexes and figures as well
as revisions to such that appeared in the first edition. In places, the text has been substantially
altered including:
– the classification system,
– tests for resistance against corrosion,
– re-written SWL test procedure,
– re-written section on electrical non-conductivity.
61537 © IEC:2006 – 11 –
The text of this standard is based on the following documents:
FDIS Report on voting
23A/513/FDIS 23A/524/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.
The following differences exist in some countries:
In the USA it is permitted to use cable tray systems and cable ladder systems as a PE
conductor, in which case national wiring regulations have to be adhered to.
In France it is not permitted to use cable tray systems and cable ladder systems as a PE
conductor.
In France the use of flame propagating cable tray and cable ladder systems is not permitted.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result 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 edition, or
• amended.
61537 © IEC:2006 – 13 –
CABLE MANAGEMENT −
CABLE TRAY SYSTEMS AND CABLE LADDER SYSTEMS
1 Scope
This International Standard specifies requirements and tests for cable tray systems and cable
ladder systems intended for the support and accommodation of cables and possibly other
electrical equipment in electrical and/or communication systems installations. Where
necessary, cable tray systems and cable ladder systems may be used for the division or
arrangement of cables into groups.
This standard does not apply to conduit systems, cable trunking systems and cable ducting
systems or any current-carrying parts.
NOTE Cable tray systems and cable ladder systems are designed for use as supports for cables and not as
enclosures.
2 Normative references
The following referenced documents are indispensable for the application 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 60068-2-75:1997, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60364-5-52:2001, Electrical installations of buildings – Part 5-52: Selection and erection of
electrical equipment – Wiring systems
IEC 60695-2-11:2000,: Fire hazard testing - Part 2-11:Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products
IEC 60695-11-2:2003, Fire hazard testing - Part 11-2: Test flames - 1 kW nominal pre-mixed
flame - Apparatus, confirmatory test arrangement and guidance
ISO 1461:1999, Hot dip galvanized coatings on fabricated iron and steel articles –
Specifications and test methods
ISO 2178:1982, Non-magnetic coatings on magnetic substrates - Measurement of coating
thickness - Magnetic method
ISO 2808:1997, Paints and varnishes - Determination of film thickness
ISO 4046 (all parts), Paper, board, pulp and related terms – Vocabulary
ISO 9227:1990, Corrosion tests in artificial atmospheres – Salt spray tests
ISO 10289:1999, Methods for corrosion testing of metallic and other inorganic coatings on
metallic substrates - Rating of test specimens and manufactured articles subjected to corrosion
tests
61537 © IEC:2006 – 15 –
3 Terms and definitions
For the purpose of this document, the following definitions apply.
3.1
cable tray system or cable ladder system
assembly of cable supports consisting of cable tray lengths or cable ladder lengths and other
system components
3.2
system component
part used within the system. System components are as follows:
a) cable tray length or cable ladder length
b) cable tray fitting or cable ladder fitting
c) support device
d) mounting device
e) system accessory
NOTE System components may not necessarily be included together in a system. Different combinations of
system components may be used.
3.3
cable tray length
system component used for cable support consisting of a base with integrated side members
or a base connected to side members
NOTE Typical examples of cable tray types are shown in Figures A.1 to A.3.
3.4
cable ladder length
system component used for cable support consisting of supporting side members, fixed to each
other by means of rungs
NOTE Typical examples of cable ladder types are shown in Figure A.4.
3.5
fitting
system component used to join, change direction, change dimension or terminate cable tray
lengths or cable ladder lengths
NOTE Typical examples are couplers, bends, tees, crosses.
3.6
cable runway
assembly comprised of cable tray lengths or cable ladder lengths and fittings only
3.7
support device
system component designed to provide mechanical support and which may limit movement of a
cable runway
NOTE Typical examples of support devices are shown in Annex B.
3.8
mounting device
system component used to attach or fix other devices to the cable runway
61537 © IEC:2006 – 17 –
3.9
apparatus mounting device
part used to accommodate electrical apparatus like switches, socket outlets, circuit- breakers,
telephone outlets, etc. which can be an integral part of the electrical apparatus and which is not
part of the cable tray system and cable ladder system
3.10
system accessory
system component used for a supplementary function such as cable retention, and covers, etc.
3.11
BLANK
3.12
metallic system component
system component which consists of metal only. Screws for connections and other fasteners
are not considered
3.13
non-metallic system component
system component which consists of non-metallic material only. Screws for connections and
other fasteners are not considered
3.14
composite system component
system component which consists of both metallic and non-metallic materials. Screws for
connections and other fasteners are not considered
3.15
non-flame propagating system component
system component which may catch fire as a result of an applied flame and the resulting flame
does not propagate and extinguishes itself within a limited time after the applied flame is
removed
3.16
external influence
presence of water, oil, building materials, corrosive and polluting substances, and external
mechanical forces such as snow, wind, and other environmental hazards
3.17
safe working load
SWL
maximum load that can be applied safely in normal use
3.18
uniformly distributed load
UDL
load applied evenly over a given area
NOTE Methods of applying uniformly distributed loads are shown in Annexes D and E.
3.19
span
distance between the centres of two adjacent support devices
61537 © IEC:2006 – 19 –
3.20
internal fixing device
device for joining and/or fixing system components to other system components. This device is
part of the system but not a system component
NOTE Typical examples are nuts and bolts.
3.21
external fixing device
device used for fixing a support device to walls, ceilings or other structural parts. This device is
not part of the system
NOTE Typical examples are anchor bolts.
3.22
base area of cable tray length or cable ladder length
plan area available for cables
3.23
free base area
part of the base area which is open to the flow of the air. Holes in cable ladder rungs are
included in the free base area
3.24
load distribution plate
means through which a point load is applied to the sample for testing purposes
3.25
product type
group of system components which vary in the case of
– cable runways in the width only
– cantilever brackets in the length only
– pendants in the length only
NOTE Different jointing methods or different jointing positions constitute different product types.
3.26
topological shape
group of product types which varies in thickness and height only
3.27
transverse deflection
vertical deflection across the width of the base area, omitting the longitudinal deflection, when
mounted horizontally
4 General requirements
Cable tray systems and cable ladder systems shall be so designed and so constructed that in
normal use, when installed according to the manufacturer’s or responsible vendor's
instructions, they ensure reliable support to the cables contained therein. They shall not impose
any unreasonable hazard to the user or cables.
Compliance is checked by carrying out all the relevant tests specified in this standard.
The system components shall be designed to withstand the stresses likely to occur during
recommended transport and storage.
61537 © IEC:2006 – 21 –
Cable tray systems and cable ladder systems according to this standard are not intended to be
used for human support.
5 General conditions for tests
5.1 Tests according to this standard are type tests.
5.2 Unless otherwise specified, tests shall be carried out with cable tray system components
or cable ladder system components assembled and installed as in normal use according to the
manufacturer's or responsible vendor's instructions.
5.3 Tests on non-metallic system components or composite system components shall not
commence earlier than 168 h after manufacture.
5.4 Unless otherwise specified, tests shall be carried out at an ambient temperature of
20 °C ± 5 °C.
Unless otherwise specified, all tests are carried out on new samples.
5.5 When toxic or hazardous processes are used, precautions should be taken to safeguard
the person performing the test.
5.6 Unless otherwise specified, three samples are subjected to the tests and the requirements
are satisfied if all the tests are met.
If only one of the samples does not satisfy a test due to an assembly or a manufacturing fault,
that test and any preceding one which may have influenced the results of the test shall be
repeated and also the tests which follow shall be made in the required sequence on another full
set of samples, all of which shall comply with the requirements.
NOTE The applicant, when submitting a set of samples, may also submit an additional set of samples which may
be necessary, should one sample fail. The testing station will then, without further request, test the additional set of
samples and will reject only if a further failure occurs. If the additional set of samples is not submitted at the same
time, the failure of one sample will entail rejection.
5.7 If the relative humidity of the atmosphere has a significant effect on the classified
properties of the samples under test, the manufacturer or responsible vendor shall declare this
information.
5.8 If a system component or system is coated in paint or any other substance which is likely
to affect its classified properties, then the relevant tests in this standard shall be performed on
the coated sample.
5.9 For the SWL test specified in subclauses from 10.2 to 10.8, deflections shall be
measured by instruments with a resolution of 0,5 mm or better and a precision of 0,1 mm or
better in all the range of measurement.
The total applied load for each of the SWL tests shall have a tolerance of 0 to + 3 %.
61537 © IEC:2006 – 23 –
6 Classification
6.1 According to material
6.1.1 Metallic system component
6.1.2 Non-metallic system component
6.1.3 Composite system component
6.2 According to resistance to flame propagation
6.2.1 Flame propagating system component
6.2.2 Non-flame propagating system component
6.3 According to electrical continuity characteristics
6.3.1 Cable tray system or cable ladder system without electrical continuity characteristics
6.3.2 Cable tray system or cable ladder system with electrical continuity characteristics
NOTE For cable tray systems and cable ladder systems with PE function, see Annex C.
6.4 According to electrical conductivity
6.4.1 Electrically conductive system component
6.4.2 Electrically non-conductive system component
6.5 According to resistance against corrosion
If system components within the cable tray system or cable ladder system have different
classifications, then the manufacturer or responsible vendor shall declare all relevant
classifications.
Within this clause, only normal atmospheric conditions are considered; special local
environmental conditions are not considered in this standard.
6.5.1 Non-metallic system components
6.5.2 System component made of steel with metallic finishes or stainless steel
Resistance against corrosion is classified according to Table 1. This table lists the most
commonly used finishes and materials. These are to be used as a reference against which
other finishes or materials are measured for classification purposes.
NOTE To indicate the life to first maintenance refer to informative Annex K.
61537 © IEC:2006 – 25 –
Table 1 – classification for resistance against corrosion
Class Reference- Material and Finish
a
0 None
Electroplated to a minimum thickness of 5 μm
Electroplated to a minimum thickness of 12 μm
3 Pre-galvanised to grade 275 to EN 10327 and EN 10326
4 Pre-galvanised to grade 350 to EN 10327 and EN 10326
Post-galvanised to a zinc mean coating thickness (minimum) of 45 μm according to ISO 1461 for zinc
thickness only
6 Post-galvanised to a zinc mean coating thickness (minimum) of 55 μm according to ISO 1461 for zinc
thickness only
Post-galvanised to a zinc mean coating thickness (minimum) of 70 μm according to ISO 1461 for zinc
thickness only
Post-galvanised to a zinc mean coating thickness (minimum) of 85 μm according to ISO 1461 for zinc
thickness only (usually high silicon steel)
9A Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S30400 or EN 10088 grade 1-
b
4301 without a post-treatment
9B Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S31603 or EN 10088 grade 1-
b
4404 without a post-treatment
9C Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S30400 or EN 10088 grade 1-
b
4301 with a post-treatment
9D Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S31603 or EN 10088 grade 1-
b
4404 with a post-treatment
a
For materials which have no declared corrosion resistance classification.
b
The post-treatment process is used to improve the protection against crevice crack corrosion and the
contamination by other steels.
6.5.3 System components made from other metals
Under consideration
6.5.4 System component with organic coating
Under consideration
6.6 According to temperature
6.6.1 Minimum temperature for the system component as given in Table 2
Table 2 – Minimum temperature classification
Minimum transport, storage,
installation and application
temperature
°C
+5
–5
–15
–20
–40
–50
61537 © IEC:2006 – 27 –
6.6.2 Maximum temperature for the system component as given in Table 3
Table 3 – Maximum temperature classification
Maximum transport, storage,
installation and application
temperature
°C
+40
+60
+90
+105
+120
+150
6.7 According to the perforation in the base area of the cable tray length as given in
Table 4
Table 4 – Perforation base area classification
Classification Perforation in the base area
A Up to 2 %
B Over 2 % and up to 15 %
C Over 15 % and up to 30 %
D More than 30 %
NOTE Classification D relates to IEC 60364-5-52, Subclause
A.52.6.2, second paragraph.
6.8 According to the free base area of cable ladder length as given in Table 5
Table 5 – Free base area classification
Classification Free base area
X Up to 80 %
Y Over 80 % and up to 90 %
Z More than 90 %
NOTE Classification Z relates to IEC 60364-5-52, Subclause
A.52.6.2, third paragraph.
61537 © IEC:2006 – 29 –
6.9 According to impact resistance
6.9.1 System component offering impact resistance up to 2 J
6.9.2 System component offering impact resistance up to 5 J
6.9.3 System component offering impact resistance up to 10 J
6.9.4 System component offering impact resistance up to 20 J
6.9.5 System component offering impact resistance up to 50 J
7 Marking and documentation
7.1 Each system component shall be durably and legibly marked with
– the manufacturer's or responsible vendor's name or trade mark or identification mark;
– a product identification mark which may be, for example, a catalogue number, a symbol,
or the like.
When system components other than cable tray lengths and cable ladder lengths are supplied
in a package, the product identification mark may be, as an alternative, marked on the smallest
package unit.
NOTE 1 The necessity to mark flame propagating system components is under consideration.
Compliance is checked by inspection and, for marking on the product, by rubbing by hand for
15 s with a piece of cotton cloth soaked with water and again for 15 s with a piece of cotton
cloth soaked with petroleum spirit.
After the test, the marking shall be legible.
NOTE 2 Petroleum spirit is defined as the aliphatic solvent hexane with a content of aromatics of maximum
0,1 % volume, a kauributanol value of 29, an initial boiling point of 65 °C, a dry point of 69 °C and a specific gravity
of approximately 0,68 kg/l.
NOTE 3 Marking may be applied, for example, by moulding, pressing, engraving, printing, adhesive labels, or
water slide transfers.
NOTE 4 Marking made by moulding, pressing, or engraving is not subjected to the rubbing test.
7.2 If a system component can, by taking precautions, be stored and transported at a
temperature outside the declared temperatures according to Tables 2 and 3, the manufacturer
or responsible vendor shall declare the precautions and the alternative temperature limits.
Compliance is checked by inspection.
7.3 The manufacturer or responsible vendor shall provide in his literature all information
necessary for the proper and safe installation and use of the cable tray system and cable
ladder system. The SWL and impact resistance is valid for the whole temperature classification
declared. The information shall include
a) instructions for the assembly and installation of system components and for the precautions
required to avoid excessive transverse deflection, which could cause damage to the cables
(see 5.2, 9.2, 10.3, 10.7, 10.8, and 14.1),
b) thermal expansion properties and precautions to be taken, if necessary,
c) classification according to Clause 6,
d) relative humidity if it affects the classifications (see 5.7),
e) information on holes or devices when provided for equipotential bonding (see 6.3.2) in
particular when a specific electrical connection device is necessary,
61537 © IEC:2006 – 31 –
f) precautions for transport and storage outside the declared temperature classification,
where applicable (see 7.2),
g) product dimensions (see Clause 8),
h) torque settings in Nm for screwed connections and internal fixing devices as well as
threads, where applicable (see 9.3d) and 9.3.1),
i) end span limitations (see 10.3),
j) position and type of coupling along the span, where applicable,
k) SWL in N/m for the fittings when not directly supported and the distance Y from the
supports adjacent to the fittings (see 10.7),
l) fixing method for installing cable tray or cable ladder to the supports when declared for the
test (see 10.3, 10.4 and 10.8.1),
m) SWL in N/m for the cable tray lengths or cable ladder lengths including joints, where
applicable for one or more of the following installation methods (see 10.1):
i) mounted in the horizontal plane running horizontally on multiple spans (see 10.3)
ii) mounted in the horizontal plane running horizontally on a single span (see 10.4)
iii) mounted in the vertical plane running horizontally (see 10.5)
iv) mounted in the vertical plane running vertically (see 10.6),
n) SWL in N for cantilever brackets and if used for cable tray only (see 10.8.1),
o) SWL for pendants as a bending moment in Nm and/or as a force in N (see 10.8.2),
p) the appropriate material specification and environmental conditions, chemical environments
or aggressive agents for which the product is suitable (see 14.2).
NOTE SWL information can be given in the form of a diagram, table, or similar.
Compliance is checked by inspection.
8 Dimensions
The manufacturer or responsible vendor shall give the following information:
− the overall envelope of the cross-section of the cable tray length or cable ladder length;
− the width of the base area of cable tray length or cable ladder length;
− the height of the cable tray length or cable ladder length available for the accommodation
of cables when a cover is fitted;
− the minimum internal radius of fittings available for the accommodation of cables;
− the dimensions of the perforations, and their arrangements on the cable tray lengths;
− the dimensions of the rungs including perforations, if any, and the centre line spacing of the
rungs.
NOTE System components, such as fittings, when used as part of the system, may change the effective area
available for the accommodation of cables.
Compliance is checked by inspection.
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