Cable trunking systems and cable ducting systems for electrical installations - Part 2-2: Particular requirements - Cable trunking systems and cable ducting systems intended for mounting underfloor, flushfloor, or onfloor

IEC 61084-2-2:2017 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.
These systems are intended for mounting underfloor, flushfloor or onfloor.
This document does not apply to CTS/CDS which are intended to be fixed to the wall and supported by the floor.
This document does not apply to conduit systems, cable tray systems, cable ladder systems, power track systems or equipment covered by other standards.
This second edition cancels and replaces the first edition published in 2003. 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 International standard is to be used in conjunction with IEC 61084-1:2017.

Systèmes de goulottes et systèmes de conduits-profilés pour installations électriques - Partie 2-2: Exigences particulières - Systèmes de goulottes et systèmes de conduits-profilés prévus pour être montés en sous-sol, encastrés dans le sol, ou sur le sol

IEC 61084-2-2:2017 spécifie les exigences et les essais pour les systèmes de goulottes (SG) et les systèmes de conduits-profilés (SCP) destinés au logement de conducteurs isolés, câbles et éventuels autres équipements électriques et, si nécessaire, à leur séparation de protection électrique, dans des installations électriques et/ou de systèmes de communication. La tension maximale de ces installations est de 1 000 V en courant alternatif et 1 500 V en courant continu.
Ces systèmes sont destinés à être montés sous le sol, encastrés dans le sol, ou sur le sol.
Le présent document ne s’applique pas aux SG/SCP prévus pour être fixés à un mur et soutenus par le sol.
Le présent document ne s’applique pas aux systèmes de conduits, systèmes de chemins de câble, systèmes d’échelles à câble, systèmes de canalisations préfabriquées ou aux équipements couverts par d’autres normes.
Cette deuxième édition annule et remplace la première édition parue en 2003. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- classification;
- construction;
- propriétés mécaniques et électriques.
Cette Norme internationale doit être utilisée conjointement avec l’IEC 61084-1:2017.

General Information

Status
Published
Publication Date
21-Mar-2017
Current Stage
PPUB - Publication issued
Start Date
22-Mar-2017
Completion Date
22-Mar-2017
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IEC 61084-2-2:2017 - Cable trunking systems and cable ducting systems for electrical installations - Part 2-2: Particular requirements - Cable trunking systems and cable ducting systems intended for mounting underfloor, flushfloor, or onfloor
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IEC 61084-2-2
Edition 2.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Cable trunking systems and cable ducting systems for electrical installations –
Part 2-2: Particular requirements – Cable trunking systems and cable ducting
systems intended for mounting underfloor, flushfloor, or onfloor
Systèmes de goulottes et systèmes de conduits-profilés pour installations
électriques –
Partie 2-2: Exigences particulières – Systèmes de goulottes et systèmes de
conduits-profilés prévus pour être montés en sous-sol, encastrés dans le sol,
ou sur le sol
IEC 61084-2-2:2017-03(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61084-2-2
Edition 2.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Cable trunking systems and cable ducting systems for electrical installations –
Part 2-2: Particular requirements – Cable trunking systems and cable ducting
systems intended for mounting underfloor, flushfloor, or onfloor
Systèmes de goulottes et systèmes de conduits-profilés pour installations
électriques –
Partie 2-2: Exigences particulières – Systèmes de goulottes et systèmes de
conduits-profilés prévus pour être montés en sous-sol, encastrés dans le sol,
ou sur le sol
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.01; 29.120.10 ISBN 978-2-8322-4119-6

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61084-2-2:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General requirements ...................................................................................................... 6

5 General conditions for tests ............................................................................................. 7

6 Classification ................................................................................................................... 7

7 Marking and documentation ............................................................................................. 7

8 Dimensions...................................................................................................................... 8

9 Construction .................................................................................................................... 8

10 Mechanical properties...................................................................................................... 9

11 Electrical properties ....................................................................................................... 14

12 Thermal properties ........................................................................................................ 14

13 Fire hazard .................................................................................................................... 14

14 External influences ........................................................................................................ 14

15 Electromagnetic compatibility ........................................................................................ 15

Annex A (informative) Types of cable trunking systems (CTS) and cable ducting

systems (CDS) ...................................................................................................................... 27

Annex B (normative) CTS/CDS IK code ............................................................................... 28

Annex AA (normative) Mechanical load tests ....................................................................... 29

Bibliography .......................................................................................................................... 31

Figure 101 – Types and application of CTS/CDS for underfloor, flushfloor or onfloor

installations .......................................................................................................................... 16

Figure 102 – Examples of trunking and ducting installations ................................................. 17

Figure 103 – Example of underfloor embedded CDS according to 3.101 ............................... 18

Figure 104 – Example of flushfloor CTS according to 3.102 .................................................. 19

Figure 105 – Example of onfloor CTS according to 3.103 ...................................................... 20

Figure 106 – Principles for arrangement ............................................................................... 21

Figure 107 – Examples for arrangement ............................................................................... 22

Figure 108 – Load test set-up for CTS/CDS in accordance with 10.5.103 .............................. 24

Figure 109 – Load test set-up for CTS/CDS in accordance with 10.5.104 .............................. 26

Table A.2 – Types of CTS and CDS for floor installation ....................................................... 27

Table AA.1 – Mechanical load tests ...................................................................................... 29

---------------------- Page: 4 ----------------------
IEC 61084-2-2:2017 © IEC 2017 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE TRUNKING SYSTEMS AND CABLE DUCTING
SYSTEMS FOR ELECTRICAL INSTALLATIONS –
Part 2-2: Particular requirements – Cable trunking systems and cable
ducting systems intended for mounting underfloor, flushfloor, or onfloor
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

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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

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5) IEC itself does not provide any 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 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 61084-2-2 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 2003. 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 International standard is to be used in conjunction with IEC 61084-1:2017.
---------------------- Page: 5 ----------------------
– 4 – IEC 61084-2-2:2017 © IEC 2017
The text of this standard is based on the following documents:
FDIS Report on voting
23A/828/FDIS 23A/836/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.

This part of the IEC 61084 series supplements or modifies the corresponding clauses of

IEC 61084-1:2017 as follows:

– where no particular clause or subclause of IEC 61084-1 is mentioned, the corresponding

clause or subclause of IEC 61084-1 applies as far as it is reasonable;

– where “addition” or “replacement” is stated, the relevant text of IEC 61084-1 is to be

adapted accordingly;

– subclauses, figures and tables which are additional to those in IEC 61084-1 are numbered

starting from 101.
In this standard, the following print types are used:
– requirements and definitions: roman type;
– compliance statements: italic type.

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 publication will remain unchanged until

the stability date indicated on the IEC website 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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 6 ----------------------
IEC 61084-2-2:2017 © IEC 2017 – 5 –
CABLE TRUNKING SYSTEMS AND CABLE DUCTING
SYSTEMS FOR ELECTRICAL INSTALLATIONS –
Part 2-2: Particular requirements – Cable trunking systems and cable
ducting systems intended for mounting underfloor, flushfloor, or onfloor
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.
These systems are intended for mounting underfloor, flushfloor or onfloor.

This document does not apply to CTS/CDS which are intended to be fixed to the wall and

supported by the floor.

This document does not apply to conduit systems, cable tray systems, cable ladder systems,

power track systems or equipment covered by other standards.
2 Normative references
This clause of Part 1 is applicable, except as follows:
Addition:

IEC 60068-2-60:2015, Environmental testing – Part 2-60: Tests – Test Ke: Flowing mixed gas

corrosion test

IEC 60068-2-75:2014, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests

IEC 61084-1:2017, Cable trunking systems and cable ducting systems for electrical

installations – Part 1: General requirements
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
3.1 Replace Note 1 to entry by:

Note 1 to entry: Different types of CTS are shown in Figure 101 and explained in Annex A.

3.2 Replace Note 1 to entry by:

Note 1 to entry: Different types of CDS are shown in Figure 101 and explained in Annex A.

---------------------- Page: 7 ----------------------
– 6 – IEC 61084-2-2:2017 © IEC 2017
3.3 Addition:
f) service unit
Replace Note 1 to entry by:

Note 1 to entry: A system does not necessarily include all system components a) to f). Different combinations of

system components can be used.
Addition:
3.101
underfloor CTS/CDS

CTS/CDS whose components, except access units and service units, are intended to be

mounted within or under a floor and in normal use are not exposed to traffic loads

Note 1 to entry: See Figures 102a), 102c) and 103.
3.102
flushfloor CTS/CDS

CTS/CDS whose components, except access units and service units, are intended to be

mounted flush such that the height above the upper level of the floor covering is not more

than 4 mm
Note 1 to entry: The upper surface is considered to be exposed to traffic loads.
Note 1 to entry: See Figures 102b) and 104.
3.103
onfloor CTS/CDS

CTS/CDS whose components are intended to be mounted on a floor such that the height

above the upper level of the floor covering is greater than 4 mm
Note 1 to entry: The upper surface is considered to be exposed to traffic loads.
Note 2 to entry: See Figures 102d) and 105.
3.104
access unit
system component intended to provide access to insulated conductors or cables
3.105
service unit

system component intended for incorporation of one or more apparatus either directly or by

means of one or more apparatus mounting devices
3.106
service unit

service unit which has no cables connected to electrical equipment

3.107
service unit
service unit which has cables connected to electrical equipment
4 General requirements
This clause of Part 1 is applicable.
---------------------- Page: 8 ----------------------
IEC 61084-2-2:2017 © IEC 2017 – 7 –
5 General conditions for tests
This clause of Part 1 is applicable.
6 Classification
This clause of Part 1 is applicable, except as follows:
Additional subclauses:
6.101 According to floor treatment
6.101.1 CTS/CDS for dry-treatment of floor
6.101.2 CTS/CDS for wet-treatment of floor when the service unit is not in use
6.101.3 CTS/CDS for wet-treatment of floor when the service unit is in use

6.102 According to resistance to vertical load applied through small surface area

6.102.1 CTS/CDS for 500 N
6.102.2 CTS/CDS for 750 N
6.102.3 CTS/CDS for 1 000 N
6.102.4 CTS/CDS for 1 500 N
6.102.5 CTS/CDS for 2 000 N
6.102.6 CTS/CDS for 2 500 N
6.102.7 CTS/CDS for 3 000 N

6.103 Optional classification according to resistance to vertical load applied through

large surface area
6.103.1 CTS/CDS for 2 000 N
6.103.2 CTS/CDS for 3 000 N
6.103.3 CTS/CDS for 5 000 N
6.103.4 CTS/CDS for 10 000 N
6.103.5 CTS/CDS for 15 000 N
7 Marking and documentation
This clause of Part 1 is applicable, except as follows:
Additional subclauses:

7.101 Access units and service units of systems classified according to 6.101.1 shall be

marked that they are suitable for dry treatment of floor only. The marking shall be visible by

the user which may be achieved by opening the cover.
NOTE This marking can be in the form of text or graphic.
---------------------- Page: 9 ----------------------
– 8 – IEC 61084-2-2:2017 © IEC 2017

7.102 Service units shall be marked with a warning about the potential damage to electrical

accessories by closing the cover. The marking shall be visible by the user which may be

achieved by opening the cover.
NOTE This marking can be in the form of text or graphic.
7.103 Compliance with 7.101 and 7.102 is checked by inspection.
8 Dimensions
This clause of Part 1 is applicable, except as follows:
Addition:
There are no dimensions requirements.
9 Construction
This clause of Part 1 is applicable, except as follows:
Addition:

9.101 Access covers of underfloor, flushfloor and onfloor CTS/CDS, which in normal use are

subjected to external mechanical loads, shall resist movement and unintentional opening.

Compliance is checked by inspection and by the tests of 10.5.

9.102 Service units installed flushfloor shall protect the installed electrical apparatus and the

plug from direct impact when in use. This protection shall be effective and shall not cause

damage to the outgoing cable.
Compliance is checked by inspection and by the tests of 10.3.
9.103 It shall be possible to securely fix:
– service units to the system;
– electrical apparatus to the service units.
Compliance is checked by the tests of 10.3 and 10.5.1.

9.104 When the service unit is not in use, it shall be possible to close openings intended for

the passage of cables.

Openings, when in use, in underfloor and flushfloor CTS/CDS, for the passage of cables,

need not be closed if one of its dimensions is less than 20 mm in one direction.
Compliance is checked by inspection and measurement.

9.105 Underfloor and flushfloor CTS/CDS which in normal use are embedded in screed

material shall be protected against ingress of the screed material.

Openings leading to the interior of underfloor and flushfloor CTS/CDS which in normal use,

are located below the upper level of the floor without covering, shall not be wider than 7 mm

in one direction.
---------------------- Page: 10 ----------------------
IEC 61084-2-2:2017 © IEC 2017 – 9 –
Compliance is checked by inspection and measurement.

NOTE The dimensioning of the maximum width of the clear opening is based on the grain size of cementitious

screeds.

9.106 CTS/CDS declared according to 6.101.2 and 6.101.3 shall avoid water coming into

contact with insulated conductors and live parts during wet-treatment of floor by one or a

combination of the following methods which may vary within the system:

– method 1: ensuring by design that water does not come into contact with insulated

conductors and live parts when the water level is 10 mm above the upper level of the floor

covering;
– method 2: providing an IP rating not less than IPX4;

– method 3: providing manufacturer's instructions which require that insulated conductors

and live parts are positioned not less than 10 mm above the upper level of the floor

covering.

For method 1, compliance is checked by measurement. For method 2, compliance is checked

by the test of 14.1.2. For method 3, compliance is checked by inspection.

9.107 Access cover of service unit, if any, shall withstand repeated opening and closing as

in normal use.
Compliance is checked by 100 cycles of opening and closing of the access cover.

After the test there shall be no damage to impair the further use of the access cover.

9.108 Additional requirements for service units intended to be installed onfloor are given in

IEC 61084-2-4:2017.
10 Mechanical properties
This clause of Part 1 is applicable, except as follows:
10.1 Mechanical strength
Replacement:

Underfloor, flushfloor and onfloor CTS/CDS shall have adequate mechanical strength.

Compliance is checked by the tests specified in 10.3 and 10.5 according to Annex AA.

10.2 Cable support test
Not applicable.
10.3 Impact test
10.3.2 Impact test for installation and application
Additional subclauses:

10.3.2.101 Systems components only intended to be mounted underfloor are not tested. The

test is carried out on an assembly made of one or more trunking lengths or ducting lengths

with the relevant system component, if any, to fulfil the various functions of the system and

prepared according to the manufacturer’s instructions. More than one assembly may be

---------------------- Page: 11 ----------------------
– 10 – IEC 61084-2-2:2017 © IEC 2017

necessary to fulfil the various functions of the system. In each direction, the length L of

trunking length or ducting length coming out of the functional area associated with the

function of the system is as long as the width W of the trunking length or ducting length, or

250 mm, whichever is the greater. The tolerance of L is ± 25 mm.

NOTE 1 Functional area refers, for example, to a fitting, an apparatus mounting device or a junction as shown in

Figure 106.

The samples are mounted on a rigid smooth support such as a plywood board 16 mm thick,

with a 50 mm minimum spacing between the assembly and the edge of the support.

NOTE 2 For flushfloor CTS/CDS additional provision can be included to simulate the influence of the floor

material on the side of the product.

Other system components can be included to prevent movements. These system components

are the system components to terminate the trunking length or ducting length, if any. When

there is no such system component, a system component chosen by the manufacturer is

used.
Examples for arrangement are shown in Figure 107.

Before the test non-metallic system components and composite system components are aged

at the temperature declared according to Table 3 of Part 1 with a tolerance of ±2 °C for

(168 ± 4) h continuously.

10.3.2.102 The impact test apparatus according to Clause 4 of IEC 60068-2-75:2014, is

mounted on a solid wall or structure providing sufficient support.

The samples are placed in a cabinet at the temperature declared according to Table 2 with a

tolerance of ±2 °C.

10.3.2.103 After 2 h, each sample is, in turn, removed from the cabinet and immediately

placed in position in the impact test apparatus.

At 12 s ± 2 s after the removal of the sample from the cabinet the hammer is allowed to fall so

that an impact is applied as far as possible perpendicular to the accessible region of the

sample likely to be the weakest. Compliance with impact applied before 10 s provides also

compliance with this test of the standard.

NOTE 1 The region likely to be the weakest can be on the relevant system component but can also be on a

trunking length or a ducting length.
No impact is applied to knockouts, membranes and the like.
No impact is applied within 50 mm of any open extremity of the sample.

NOTE 2 When another system component has been included at an extremity of the sample to prevent

movements, this extremity is still considered open.

Instead of placing the samples in a cabinet and applying the impact at 12 s ± 2 s after the

removal of the sample from the cabinet, it is allowed to apply the impact in a climatic chamber

at the temperature declared according to Table 2 with a tolerance of ±2 °C on samples placed

at this temperature for 2 h. Compliance in the climatic chamber is sufficient. In case of failure

in the climatic chamber, compliance using the cabinet provides compliance with the standard.

10.3.2.104 After the test:
– the assemb
...

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