EN 50085-2-1:2006

SLOVENSKI STANDARD
01-december-2007
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Cable trunking systems and cable ducting systems for electrical installations -- Part 2-1:
Cable trunking systems and cable ducting systems intended for mounting on walls and
ceilings
Elektroinstallationskanalsysteme für elektrische Installationen -- Teil 2-1: Besondere
Anforderungen für Elektroinstallationskanalsysteme für Wand und Decke
Systemes de goulottes et systemes de conduits-profilés pour installations électriques --
Partie 2-1: Systemes de goulottes et systemes de conduits-profilés prévus pour etre
montés sur les murs et les plafonds
Ta slovenski standard je istoveten z: EN 50085-2-1:2006
ICS:
29.120.10 ,QãWDODFLMVNHFHYL]D Conduits for electrical
HOHNWULþQHQDPHQH purposes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50085-2-1
NORME EUROPÉENNE
October 2006
EUROPÄISCHE NORM
ICS 29.120.10
English version
Cable trunking systems and cable ducting systems
for electrical installations
Part 2-1: Cable trunking systems and cable ducting systems
intended for mounting on walls and ceilings

Systèmes de goulottes et systèmes  Elektroinstallationskanalsysteme
de conduits-profilés pour installations für elektrische Installationen
électriques Teil 2-1: Besondere Anforderungen
Partie 2-1: Systèmes de goulottes et für Elektroinstallationskanalsysteme
systèmes de conduits-profilés prévus pour für Wand und Decke
être montés sur les murs et les plafonds

This European Standard was approved by CENELEC on 2006-10-01. 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

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50085-2-1:2006 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 213, Cable
management.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50085-2-1
on 2006-10-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-10-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-10-01

This standard is a system standard for cable management products used for electro-technical
purposes. It relates to the Council Directives on the approximation of laws, regulations and
administrative provisions of the Member States relating to Low Voltage Directive (73/23/EEC)
through consideration of the essential requirements of this directive.
This standard is supported by separate standards to which references are made.
This Part 2 is to be used in conjunction with EN 50085-1:2005, Cable trunking and cable ducting
systems for electrical installations – Part 1: General requirements.
This Part 2 supplements or modifies the corresponding clauses of Part 1. Where a particular
clause or subclause of Part 1 is not mentioned in this Part 2, that clause or subclause of Part 1
applies as far as is reasonable. Where this Part 2 states “addition” or “replacement”, the relevant
text of Part 1 is to be adapted accordingly.
Subclauses and figures which are additional to those in Part 1 are numbered starting from 101.

– 3 – EN 50085-2-1:2006
Contents
Page
1 Scope.4
2 Normative references.4
3 Definitions .4
4 General requirements .5
5 General conditions for tests .5
6 Classification .5
7 Marking and documentation .7
8 Dimensions.7
9 Construction .7
10 Mechanical properties.9
11 Electrical properties .14
12 Thermal properties .14
13 Fire effects .14
14 External influences .14
15 Electromagnetic compatibility.14

Annex A (informative) Types of cable trunking systems (CTS) and cable ducting systems
(CDS) .24
Annex B (informative).24
Annex C (normative) .24

Figure 101 - Types and application of CTS/CDS for wall or ceiling installation.15
Figure 102 - Arrangement for cable support test according to 10.2.2.16
Figure 103 - Arrangement for cable support test according to 10.2.3.16
Figure 104 - Arrangement for cable support test according to 10.2.4.17
Figure 105 - Arrangement for cable support test according to 10.2.5.17
Figure 106 - Impact test for installation and application – Principles for arrangement .18
Figure 107 - Impact test for installation and application – Examples for arrangement .21
Figure 108 - Arrangement for linear deflection test .22
Figure 109 - Example of arrangement for CDS compression test .23

1 Scope
Replacement:
This European Standard 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 a.c. and 1 500 V d.c.
These systems are intended for mounting on walls and/or ceilings. They may be embedded,
installed in a flush or semi-flush state, surface mounted or mounted away from the surface using
fixing devices.
This standard does not apply to conduit systems, cable tray systems, cable ladder systems, power
track systems or equipment covered by other standards.
This standard shall be used in conjunction with EN 50085-1:2005: Cable trunking systems and
cable ducting systems for electrical installations - Part 1 General requirements which is referred to
in this document as Part 1.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
EN 60068-2-75 1997 Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
(IEC 60068-2-75:1997)
EN 20535 1994 Paper and board - Determination of water absorptiveness - Cobb
method (ISO 535:1991)
EN ISO 536 1996 Paper and board – Determination of grammage (ISO 536:1995)
3 Definitions
This clause of Part 1 is applicable except as follows:
3.1 Replace the note by:
NOTE Different types of CTS are shown in Figure 101 and explained in Annex A.1.
3.2 Replace the note by:
NOTE Different types of CDS are shown in Figure 101 and explained in Annex A.1.
Addition:
3.101
type 2 CTS/CDS (Distribution CTS/CDS)
CTS/CDS which provides at least the following functions:
• in line junction between two trunking lengths or ducting lengths,
• internal and external changes of direction between two trunking lengths or ducting lengths,

– 5 – EN 50085-2-1:2006
• flat change of direction between two trunking lengths or ducting lengths with the exception of
certain systems where such a function is not required e.g. skirting CTS/CDS,
• "T" function between three trunking lengths or ducting lengths with the exception of certain
systems where such a function is not required e.g. Bench CTS,
• termination of a trunking length or a ducting length
3.102
type 3 CTS/CDS (Installation CTS/CDS)
distribution CTS/CDS which provides in addition apparatus mounting function
3.103
type 1 CTS/CDS
CTS/CDS that cannot be defined as a type 2 CTS/CDS (Distribution CTS/CDS) or as a type 3 CTS/CDS
(Installation CTS/CDS)
3.104
surface mounting CTS/CDS
CTS/CDS which is intended for mounting on a surface
3.105
flush-mounting CTS/CDS
CTS/CDS which is intended for mounting flush with the surface so that at least 90 % of the product depth
is recessed below the finished surface when installed according to manufacturer’s instructions
3.106
semi-flush mounting CTS/CDS
CTS/CDS which is intended to fit within a mounting surface so that more than 10 % of the product depth
projects from the finished surface
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for tests
This clause of Part 1 is applicable.
6 Classification
This clause of Part 1 is applicable except as follows:
Addition:
6.101 According to the intended installation positions
NOTE More than one classification can be declared.
6.101.1 CDS embedded in the wall or ceiling.
6.101.2 CTS/CDS flush in the wall or ceiling.
6.101.2.1 CTS/CDS flush in the wall.

6.101.2.2 CTS/CDS flush in the ceiling.
6.101.3 CTS/CDS semi flush or surface mounted on the wall or ceiling.
6.101.3.1 CTS/CDS semi flush or surface mounted on the wall.
6.101.3.2 CTS/CDS semi flush or surface mounted on the ceiling.
6.101.3.3 CTS/CDS wall fixed and supported by the floor.
6.101.3.4 CTS/CDS wall fixed and supported by a horizontal surface other than the floor.
6.101.4 CTS/CDS mounted away from the wall or ceiling using fixing devices.
6.102 According to the prevention of contact between liquids and insulated conductors
and live parts in case of CTS/CDS mounted in a skirting position and wet-treatment of floor
6.102.1 Not declared.
6.102.2 Relying completely on manufacturer’s instructions restricting the installation position of
the CTS/CDS.
6.102.3 Relying on manufacturer’s instructions allowing all installation positions of the CTS/CDS
but restricting the position of insulated conductors and live parts in CTS/CDS.
6.102.4 Relying on manufacturer’s instructions allowing all installation positions of the CTS/CDS
and all positions of insulated conductors and live parts in CTS/CDS.
NOTE Installation position refers to the distance between CTS/CDS and the floor.
6.103 According to the Type
6.103.1 Type 1 CTS/CDS.
6.103.2 Type 2 CTS/CDS (Distribution CTS/CDS).
6.103.3 Type 3 CTS/CDS (Installation CTS/CDS).
6.104 According to resistance to compression for CDS
6.104.1 CDS for compression 125 N.
6.104.2 CDS for compression 320 N.
6.104.3 CDS for compression 750 N.
6.104.4 CDS for compression 1 250 N.
6.104.5 CDS for compression 4 000 N.

– 7 – EN 50085-2-1:2006
7 Marking and documentation
This clause of Part 1 is applicable except as follows:
7.3 Replacement:
7.3 The manufacturer shall provide in his documentation all information necessary for the proper
and safe installation and use. It shall include
- components of the system,
- function of the system components and their assemblies,
- classification of the system in accordance with Clause 6,
- for type 1 CTS/CDS the list of functions,
- linear impedance, in Ω/m, of trunking length or ducting length of system declared according to
6.5.1,
- rated voltage of CTS/CDS declared according to 6.6.2,
- usable cross sectional area, in mm , for cables of the CTS/CDS,
NOTE  Certain system components when mounted can reduce the usable cross sectional area for cables.
- instructions to reach the declared classification and functions of the system.
These instructions shall include the recommended installation positioning for the CTS/CDS to
ensure that the declared IP class
...