IEC 61084-1:2017

IEC 61084-1 ®
Edition 2.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Cable trunking systems and cable ducting systems for electrical installations –
Part 1: General requirements
Systèmes de goulottes et systèmes de conduits-profilés pour installations
électriques –
Partie 1: Exigences générales
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IEC 61084-1 ®
Edition 2.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Cable trunking systems and cable ducting systems for electrical installations –

Part 1: General requirements
Systèmes de goulottes et systèmes de conduits-profilés pour installations

électriques –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.01; 29.120.10 ISBN 978-2-8322-4113-4

– 2 – IEC 61084-1:2017 © IEC 2017
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General requirements . 12
5 General conditions for tests . 12
6 Classification . 13
6.1 According to material . 13
6.2 According to resistance to impact for installation and application . 13
6.2.1 CTS/CDS for impact 0,5 J . 13
6.2.2 CTS/CDS for impact 0,7 J . 13
6.2.3 CTS/CDS for impact 1 J . 13
6.2.4 CTS/CDS for impact 2 J . 13
6.2.5 CTS/CDS for impact 5 J . 13
6.2.6 CTS/CDS for impact 10 J . 13
6.2.7 CTS/CDS for impact 20 J . 13
6.3 According to temperatures as given in Table 1, Table 2 and Table 3 below . 13
6.4 According to resistance to flame propagation . 14
6.4.1 Flame propagating CTS/CDS . 14
6.4.2 Non-flame propagating CTS/CDS . 14
6.5 According to electrical continuity characteristic . 14
6.5.1 CTS/CDS with electrical continuity characteristic . 14
6.5.2 CTS/CDS without electrical continuity characteristic . 14
6.6 According to electrical insulating characteristic . 14
6.6.1 CTS/CDS without electrical insulating characteristic . 14
6.6.2 CTS/CDS with electrical insulating characteristic . 14
6.7 According to degrees of protection provided by enclosure according to
IEC 60529:1989 . 14
6.7.1 According to protection against ingress of solid foreign objects . 14
6.7.2 According to protection against ingress of water . 14
6.7.3 According to protection against access to hazardous parts . 14
6.8 According to protection against corrosive or polluting substances . 14
6.9 According to the system access cover retention . 14
6.9.1 CTS/CDS access cover, which can be opened without a tool . 14
6.9.2 CTS/CDS access cover, which can only be opened with a tool . 14
7 Marking and documentation . 14
8 Dimensions. 17
9 Construction . 17
9.1 Sharp edges . 17
9.2 Apparatus mounting . 17
9.3 Means for protective separation and/or retention . 17
9.4 Mechanical connections . 18
9.5 Accessible conductive parts . 19
9.6 Equipotential bonding . 20
9.7 Access to live parts . 20
9.8 Inlet openings . 21

9.9 Membranes . 21
9.10 Cable restrainer . 21
9.11 Cable anchorage . 22
10 Mechanical properties. 23
10.1 Mechanical strength . 23
10.2 Cable support test . 23
10.3 Impact test . 23
10.3.1 Impact test for storage and transport . 23
10.3.2 Impact test for installation and application . 24
10.4 Linear deflection test. 24
10.5 External load test . 24
10.5.1 Fixing test for apparatus mounting of socket outlets . 24
10.5.2 Fixing test for apparatus mounting other than socket outlets . 25
10.6 System access cover retention . 25
11 Electrical properties . 26
11.1 Electrical continuity . 26
11.1.1 General . 26
11.1.2 Preparation and conditioning . 26
11.1.3 Electrical impedance tests . 26
11.2 Electrical insulation . 28
11.2.1 Solid insulation . 28
11.2.2 Conditioning and preparation . 28
11.2.3 Insulation resistance test . 29
11.2.4 Dielectric strength test . 29
12 Thermal properties . 29
12.1 Resistance to heat . 29
12.1.1 General . 29
12.1.2 Test for non-metallic or composite system components necessary to
retain current-carrying parts in position . 29
12.1.3 Test for non-metallic or composite system components not necessary to
retain current-carrying parts in position . 30
13 Fire hazard . 30
13.1 Reaction to fire . 30
13.1.1 Initiation of fire . 30
13.1.2 Contribution to fire . 31
13.1.3 Spread of fire . 31
13.1.4 Additional reaction to fire characteristics . 32
13.2 Resistance to fire . 32
14 External influences . 32
14.1 Degree of protection provided by enclosure . 32
14.1.1 General . 32
14.1.2 Protection against ingress of solid foreign objects . 32
14.1.3 Protection against ingress of water . 33
14.1.4 Protection against access to hazardous parts . 33
14.2 Protection against corrosive or polluting substances . 33
15 Electromagnetic compatibility . 33
Annex A (informative) Types of cable trunking systems (CTS) and cable ducting
systems (CDS) . 42
Annex B (normative) CTS/CDS IK code . 44

– 4 – IEC 61084-1:2017 © IEC 2017
Bibliography . 45

Figure 1 – Types and application of trunking systems (CTS) and ducting systems
(CDS) . 34
Figure 2 – Example of impact test apparatus . 35
Figure 3 – Arrangement for test for resistance to flame propagation . 36
Figure 4 – Enclosure for test for resistance to flame propagation . 37
Figure 5 – Ball pressure test apparatus . 37
Figure 6 – Electrical impedance tests arrangement . 39
Figure 7 – Examples of membranes and grommets . 39
Figure 8 – Typical apparatus for testing the resistance of cable anchorage to pull force . 40
Figure 9 – Typical apparatus for testing the resistance of cable anchorage to twist
force . 41
Figure 10 – Piston for durability of marking test . 41

Table 1 – Minimum storage and transport temperature . 13
Table 2 – Minimum installation and application temperature . 13
Table 3 – Maximum application temperature . 13
Table 4 – Torque values for the test of screwed connections . 19
Table 5 – Forces and torques to be applied to cable anchorage . 23
Table 6 – Impact test values . 24
Table A.1 – Types of CTS and CDS for wall and ceiling installation . 42
Table A.2 – Types of CTS and CDS for floor installation . 42
Table A.3 – Types of CTS and CDS for installation between two opposite surfaces . 43

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE TRUNKING SYSTEMS AND CABLE DUCTING
SYSTEMS FOR ELECTRICAL INSTALLATIONS –

Part 1: General requirements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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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 61084-1 has been prepared by subcommittee 23A: Cable
management systems, of IEC technical committee 23: Electrical accessories.
This second edition cancels and replaces the first edition published in 1991 and
Amendment 1:1993. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• classification;
• construction;
• mechanical and electrical properties.
This part of the IEC 61084 series is not intended to be used by itself.

– 6 – IEC 61084-1:2017 © IEC 2017
The text of this standard is based on the following documents:
FDIS Report on voting
23A/826/FDIS 23A/833/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61084 series, published under the general title Cable trunking and
cable ducting systems for electrical installations, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
CABLE TRUNKING SYSTEMS AND CABLE DUCTING
SYSTEMS FOR ELECTRICAL INSTALLATIONS –

Part 1: General requirements
1 Scope
This part of the IEC 61084 series specifies requirements and tests for cable trunking systems
(CTS) and cable ducting systems (CDS) intended for the accommodation, and where
necessary for the electrically protective separation, of insulated conductors, cables and
possibly other electrical equipment in electrical and/or communication systems installations.
The maximum voltage of these installations is 1 000 V AC and 1 500 V DC.
This document does not apply to conduit systems, cable tray systems, cable ladder systems,
power track systems or equipment covered by other standards.
NOTE This part of the IEC 61084 series is not intended to be used by itself.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements 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 60417, Graphical symbols for use on equipment
IEC 60423:2007, Conduit systems for cable management – Outside diameters of conduits for
electrical installations and threads for conduits and fittings
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60695-2-11:2014, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-11-2:2013, Fire hazard testing – Part 11-2: Test flames – 1 kW pre-mixed flame –
Apparatus, confirmatory test arrangement and guidance
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
ISO 2768-1:1989, General tolerances – Part 1:Tolerances for linear and angular dimensions
without individual tolerance indications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
– 8 – IEC 61084-1:2017 © IEC 2017
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
cable trunking system
CTS
assembly comprising a trunking length and possibly other system components to provide an
enclosure for the accommodation and laying in of insulated conductors and cables and
possibly the accommodation of other electrical equipment
Note 1 to entry: Different types of CTS are shown in Figure 1 and explained in Annex A.
3.2
cable ducting system
CDS
assembly comprising a ducting length and possibly other system components to provide an
enclosure for the accommodation and drawing in of insulated conductors and cables and
possibly the accommodation of other electrical equipment
Note 1 to entry: Different types of CDS are shown in Figure 1 and explained in Annex A.
3.3
system component
part of the system which includes:
a) trunking length or ducting length;
b) trunking fitting or ducting fitting;
c) fixing device;
d) apparatus mounting device;
e) system accessory
Note 1 to entry: A system does not necessarily include all system components a) to e). Different combinations of
system components can be used.
3.4
trunking length
main component of a cable trunking system comprising a base with one or more access
covers which may be opened or removed
3.5
ducting length
main component of a cable ducting system, characterized by a closed non-circular cross
section
3.6
fitting
system component to connect, change direction or terminate trunking lengths or ducting
lengths
3.7
fixing device
system component to secure other system components to the wall, ceiling, floor or other
structure
3.8
apparatus mounting device
system component to accommodate electrical apparatus (switches, socket outlets, circuit-
breakers, telephone outlets, etc.) which can be an integral part of electrical apparatus

Note 1 to entry: An apparatus mounting device can also be a fitting, a trunking length, etc.
3.9
system accessory
system component which provides a supplementary function
EXAMPLE 1: Examples of system accessories are partition, cable retainer, cable outlet, etc.
3.10
metallic system component
system component which consists of metal only
3.11
non-metallic system component
system component which consists of non-metallic material only
3.12
composite system component
system component comprising both metallic and non-metallic materials
3.13
non-flame propagating system component
system component which can catch fire as a result of an applied flame, in which the resulting
flame does not propagate and self extinguishes within a limited time after the applied flame is
removed
3.14
external influence
factor which may affect the system
3.15
gland
device designed to permit the entry of a cable or flexible cable into equipment, and which
provides sealing and retention
Note 1 to entry: It may also provide other functions such as earthing, bonding, insulation, cable guarding, strain
relief or a combination of these.
3.16
live part
conductor or conductive part intended to be energized in normal operation, including a neutral
conductor, but by convention not a PEN conductor or PEM conductor or PEL conductor
[SOURCE: IEC 60050-826:2004, 826-12-08, modified – Note deleted.]
3.17
cable anchorage
system accessory or part of another system component to relieve conductors in terminals and
terminations from strain by resisting the pull and twist forces on cable
3.18
cable restrainer
system accessory to relieve conductors in terminals and terminations from strain by resisting
the pull force on cable or insulated conductors
3.19
cable retainer
system accessory for the retention of insulated conductors or cables to prevent them from
falling out when the access cover is opened or removed

– 10 – IEC 61084-1:2017 © IEC 2017
3.20
grommet
component or an integral part of an enclosure to support and protect the cable, conduit or
ducting or trunking at the point of entry
Note 1 to entry: It may also prevent the ingress of moisture or contaminants.
SEE: Figure 7.
3.21
entry membrane
component or an integral part of an enclosure to protect the cable, and may be used to
support the cable, conduit or ducting or trunking at the point of entry
Note 1 to entry: It may also prevent the ingress of moisture or contaminants. An entry membrane may be part of a
grommet.
SEE: Figure 7.
3.22
protecting membrane
component or an integral part of an enclosure, not to be penetrated in normal use, to provide
protection against ingress of water or solid objects and/or to allow the operation of an
accessory
SEE: Figure 7.
3.23
gasket
additional part or material or an integral part placed between mating surfaces of an enclosure
which in compression contributes to the achievement of the declared ingress protection
3.24
reaction to fire
response of a CTS/CDS in contributing by its own decomposition to a fire, to which it is
exposed, under specified conditions
3.25
fire resistance
ability of a CTS/CDS to fulfil for a stated period of time the required stability and/or integrity
and/or thermal insulation, and/or other expected duty specified in a standard fire resistance
test
Note 1 to entry: Fire resistant (adjective) refers only to this ability.
3.26
skirting CTS/CDS
CTS/CDS intended to be installed on the lower part of a wall
3.27
dry-treatment of floor
process for cleaning and/or care by which the floor is treated without liquids or with only a
small quantity of liquid
Note 1 to entry: The required agents are applied and spread in such quantities that no pools are formed and
soaking of the floor covering does not occur.
EXAMPLE 1: Examples for dry treatment are: Sweeping with a broom or carpet-sweeper, vacuum cleaning,
brushing, cleaning with a dry cleaning powder, dry shampoo treatment, wet shampooing of carpets, treatment with
cleaning litter (liquid chemical cleaning agent on a solid material used as carrier, e.g. soaked sawdust, damp cloth,
etc.)
3.28
wet-treatment of floor
process for cleaning and/or care by which the floor is treated with liquid agents such that
pools of liquid, or soaking of the floor covering for a brief period of time, cannot be excluded
EXAMPLE 1: Examples of wet treatment are: wet scrubbing, manual or mechanical wiping.
3.29
screen
conductive screen
conductive part that encloses or separates electric circuits and/or conductors
[SOURCE: IEC 60050-195:1998, 195-02-38]
3.30
protective screen
electrically protective screen
conductive screen used to separate an electric circuit and/or conductors from hazardous-live-
parts
[SOURCE: IEC 60050-195:1998, 195-06-17]
3.31
protective screening
electrically protective screening
separation of electric circuits or conductors from hazardous-live-parts by an electrically
protective screen connected to the protective-equipotential-bonding system and intended to
provide protection against electric shock
[SOURCE: IEC 60050-195:1998, 195-06-18]
3.32
protective separation
electrically protective separation
separation of one electric circuit from another by means of:
• double insulation; or
• basic insulation and electrically protective screening; or
• reinforced insulation
[SOURCE: IEC 60050-195:1998, 195-06-19]
3.33
partition
partition of an assembly
part of an assembly separating one compartment from other compartments
[SOURCE: IEC 60050-441:1984, 441-13-06]
3.34
internal protective partition
partition which when used in combination with basic insulation provides electrically protective
separation between compartments of the CTS/CDS

– 12 – IEC 61084-1:2017 © IEC 2017
4 General requirements
CTS/CDS shall be so designed and constructed that where required they provide reliable
mechanical protection to the insulated conductors, cables and possibly other electrical
equipment contained therein. Where required, the system shall also provide adequate
electrical protection.
Furthermore, the system components shall withstand the stresses likely to occur under
classified minimum temperature for storage and transport, installation and application (see
Tables 1 and 2) and maximum temperature for application (see Table 3) and during
recommended installation practice and usage.
Equipment associated with or incorporated in a system component but which is not a system
component, shall and need only comply with the relevant standard of this equipment, if any.
However, it may be necessary to include such equipment in a test arrangement for the
purpose of testing its interface with the CTS/CDS.
Compliance is checked by carrying out all the tests specified.
5 General conditions for tests
5.1 Tests according to this document are called type tests.
5.2 Samples of system components are, hereafter, called samples.
5.3 Unless otherwise specified, tests are carried out, considering the declared classification
and functions of the system, with the CTS/CDS assembled and installed as in normal use
according to the manufacturer's instructions.
Tests on non-metallic system components or composite system components shall not
commence earlier than 168 h after manufacture. During this period, the samples may be aged
according to 10.3.1.1 when required.
5.4 Unless otherwise specified, the tests are carried out at an ambient temperature of
20 °C ± 5 °C.
5.5 Samples of trunking lengths or ducting lengths for a given test are taken from different
trunking lengths or ducting lengths.
5.6 Unless otherwise specified, all tests are carried out on new samples.
5.7 When toxic or hazardous processes are used, precautions shall be taken to safeguard
the test personnel.
5.8 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 carried out 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, can also submit an additional set of samples which can
be used if 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.

6 Classification
6.1 According to material
Void.
6.2 According to resistance to impact for installation and application
6.2.1 CTS/CDS for impact 0,5 J
6.2.2 CTS/CDS for impact 0,7 J
6.2.3 CTS/CDS for impact 1 J
6.2.4 CTS/CDS for impact 2 J
6.2.5 CTS/CDS for impact 5 J
6.2.6 CTS/CDS for impact 10 J
6.2.7 CTS/CDS for impact 20 J
6.3 According to temperatures as given in Table 1, Table 2 and Table 3 below
Table 1 – Minimum storage and transport temperature
Minimum storage and transport temperature
°C
– 45
– 25
– 15
– 5
Table 2 – Minimum installation and application temperature
Minimum installation and application temperature
°C
– 25
– 15
– 5
+ 5
+ 15
Table 3 – Maximum application temperature
Maximum application temperature
°C
+ 60
+ 90
+ 105
+ 120
– 14 – IEC 61084-1:2017 © IEC 2017
NOTE The application temperatures given in Table 2 and Table 3 are operating temperatures and not ambient
temperatures.
6.4 According to resistance to flame propagation
6.4.1 Flame propagating CTS/CDS
6.4.2 Non-flame propagating CTS/CDS
6.5 According to electrical continuity characteristic
6.5.1 CTS/CDS with electrical continuity characteristic
6.5.2 CTS/CDS without electrical continuity characteristic
6.6 According to electrical insulating characteristic
6.6.1 CTS/CDS without electrical insulating characteristic
6.6.2 CTS/CDS with electrical insulating characteristic
NOTE The electrical insulating characteristic provides supplementary insulation when used with insulated
conductors and other live parts, if any, provided with basic insulation.
6.7 According to degrees of protection provided by enclosure according to
IEC 60529:1989
6.7.1 According to protection against ingress of solid foreign objects
IP4X or any higher degree of protection shall not be declared when it relies on butt joint or the
accuracy of cutting of ducting lengths or trunking lengths or access covers without providing
relevant fittings or assembly means or additional factory prefabricated sealing means.
6.7.2 According to protection against ingress of water
IPX1 or any higher degree of protection shall not be declared when it relies on butt joint or the
accuracy of cutting of ducting lengths or trunking lengths or access covers without providing
relevant fittings or assembly means or additional factory prefabricated sealing means.
6.7.3 According to protection against access to hazardous parts
IPXX-D shall not be declared when it relies on butt joint or the accuracy of cutting of ducting
lengths or trunking lengths or access covers without providing relevant fittings or assembly
means or additional factory prefabricated sealing means.
6.8 According to protection against corrosive or polluting substances
Under consideration.
6.9 According to the system access cover retention
6.9.1 CTS/CDS access cover, which can be opened without a tool
6.9.2 CTS/CDS access cover, which can only be opened with a tool
7 Marking and documentation
7.1 Each system component shall be 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 trunking length, ducting length and apparatus mounting
device are supplied in a package and it is not feasible to have both markings legible due to
the small size of the item
• if only one legible marking is feasible, it is sufficient to mark the product identification on
the smallest supplied packages, the manufacturer’s or responsible vendor’s name or trade
mark or identification mark being marked on the product,
• if no legible marking is feasible, it is sufficient to place both markings on the smallest
supplied package.
Terminals for protective earth shall be marked according to 7.4. This marking shall not be
placed on screws or any other easily removable part.
Flame propagating system component shall be clearly identified as being flame propagating
on the system component and on the smallest supplied package or label.
When it is not possible to have this identification mean on small system components, due to
the small size of the item, it is sufficient to place this identification mean on the smallest
supplied package.
Compliance is checked by inspection using one sample.
7.2 Marking shall be durable and easily legible.
Compliance is checked by inspection, using normal or corrected vision, without additional
magnification and by rubbing the marking 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 n-hexane 95 % (Chemical
Abstracts Service Registry Number, CAS RN, 110-54-3).
NOTE 1 n-hexane 95 % (Chemical Abstracts Service Registry Number, CAS RN, 110-54-3) is available from a
variety of chemical suppliers as a high pressure liquid chromatography (HPLC) solvent.
When using the liquid specified for the test, precautions as stated in the relative material
safety datasheet provided by the chemical supplier shall be taken to safeguard the laboratory
technicians.
Laser marking directly on the product and marking made by moulding, pressing or engraving
are not subjected to this test.
Products complying with a previous edition of the standard need not be tested again as this
requirement does not have impact on the safety of the product.
The marking surface to be tested shall be dried before rubbing the marking with n-hexane
95 % solvent.
Rubbing shall commence immediately after soaking the piece of cotton, applying a
compression force of (5 ± 1) N at a rate of about one cycle per second (a cycle comprising a
forward and backward movement along the lengt
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