EN 50085-2-3:2010

SLOVENSKI STANDARD
01-maj-2010
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SIST EN 50085-2-3:2000
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Cable trunking systems and cable ducting systems for electrical installations - Part 2-3:
Particular requirements for slotted cable trunking systems intended for installation in
cabinets
Elektroinstallationskanalsysteme für elektrische Installationen - Teil 2-3: Besondere
Anforderungen an Verdrahtungskanäle zum Einbau in Schaltschränke
Systèmes de goulottes et systèmes de conduits-profilés pour installations électriques -
Partie 2-3: Règles particulières pour les systèmes de goulottes de câblage pour
installation dans les armoires
Ta slovenski standard je istoveten z: EN 50085-2-3:2010
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 50085-2-3
NORME EUROPÉENNE
March 2010
EUROPÄISCHE NORM
ICS 29.120.10 Supersedes EN 50085-2-3:1999

English version
Cable trunking systems and cable ducting systems
for electrical installations -
Part 2-3: Particular requirements for slotted cable trunking
systems intended for installation in cabinets

Systèmes de goulottes et systèmes  Elektroinstallationskanalsysteme
de conduits-profilés pour installations für elektrische Installationen -
électriques - Teil 2-3: Besondere Anforderungen
Partie 2-3: Règles particulières an Verdrahtungskanäle zum Einbau
pour les systèmes de goulottes in Schaltschränke
de câblage pour installation
dans les armoires
This European Standard was approved by CENELEC on 2010-03-01. 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, Bulgaria, Croatia, 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: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50085-2-3:2010 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 213, Cable
management systems. It was submitted to the formal vote and was approved by CENELEC as
EN 50085-2-3 on 2010-03-01.
This document supersedes EN 50085-2-3:1999 and is aligned on EN 50085-1:2005.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
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) 2011-03-01
– latest date by which the national standards conflicting

with the EN have to be withdrawn
(dow) 2013-03-01
This European Standard is a system standard for cable management products used for electro-technical
purposes. It relates to the Council Directive on the approximation of laws, regulations and administrative
provisions of the Member States relating to Low Voltage (Directive 2006/95/EC) through consideration of
the essential requirements of this directive.
This European Standard is supported by separate standards to which references are made.
This Part 2-3 is to be used in conjunction with EN 50085-1:2005, “Cable trunking systems and cable
ducting systems for electrical installations – Part 1: General requirements”.
This Part 2-3 supplements or modifies the corresponding clauses of EN 50085-1:2005. Where a particular
clause or subclause of Part 1 is not mentioned in this Part 2, that clause or subclause applies as far as it
is reasonable. Where this Part 2 states "addition", "modification" or “replacement” the relevant text of
Part 1 is to be adapted accordingly.
NOTE The following numbering system is used:
– subclauses, tables and figures that are additional to those in Part 1 are numbered starting from 101;
– additional annexes are lettered AA, BB, etc.
__________
– 3 – EN 50085-2-3:2010
Contents
1 Scope .4
2 Normative references .4
3 Definitions .4
4 General requirements .5
5 General conditions for tests .5
6 Classification .6
7 Marking and documentation .6
8 Dimensions .6
9 Construction .7
10 Mechanical properties .7
11 Electrical properties .8
12 Thermal properties .9
13 Fire hazard .9
14 External influences . 10
15 Electromagnetic compatibility . 10
Annex A (informative) Types of cable trunking systems (CTS) and cable ducting systems
(CDS) . 16
Annex B (informative) A-deviations . 16
Annex AA (normative) Compliance checks to be carried out for slotted cable trunking systems
intended for installation in cabinets complying with EN 50085-2-3:1999 . 16
Bibliography . 17

Figures
Figure 101 – Examples of pattern of fixing holes in the base of the slotted trunking length . 11
Figure 102 – Examples of sizes for the fixing holes . 12
Figure 103 – Fixing distances for cable support test of 10.2 . 13
Figure 104 – Arrangements for cable support test of 10.2 . 14
Figure 105 – Arrangement for flame test of 13.1.3 . 15

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.
Slotted cable trunking systems are intended for mounting inside cabinets in electrical and/or
communication system installations.
This European Standard does not apply to conduit systems, cable tray systems, cable ladder systems,
power track systems or equipment covered by other standards.
This European 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. Wherever reference is made in this European Standard to EN 50085-1:2005 this
does not apply to cable ducting systems.
2 Normative references
Replacement:
EN 50085-1 2005 Cable trunking systems and cable ducting systems for electrical
installations – Part 1: General requirements
EN 50085-2-3 1999 Cable trunking systems and cable ducting systems for electrical
installations – Part 2-3: Particular requirements for slotted cable
trunking systems intended for installation in cabinets
EN 60695-11-5 2005 Fire hazard testing – Part 11-5: Test flames – Needle-flame test
method – Apparatus, confirmatory test arrangement and guidance
(IEC 60695-11-5:2004)
1)
HD 383 S2 1986 Conductors of insulated cables – First supplement: Guide to the
dimensional limits of circular conductors
(IEC 60228:1978, mod. + IEC 60228A:1982, mod.)
3 Definitions
For the purposes of this document, the terms and definitions of Part 1 apply except as follows.
Addition:
3.101
slotted cable trunking system
system comprising a slotted trunking length and possibly other slotted cable trunking system components
for the accommodation and laying in of insulated conductors or cables intended for use in a cabinet or
similar
———————
1)
Superseded by EN 60228:2005, Conductors of insulated cables (IEC 60228:2004).

– 5 – EN 50085-2-3:2010
3.102
slotted cable trunking system component
part of the system which includes
a) slotted trunking length,
b) trunking fitting,
c) fixing device,
d) system accessory
NOTE The above mentioned system components may not necessarily be included all together in a system. Different combinations
of system components may be used.
3.103
slotted trunking length
trunking length with slotted walls and with cover(s) which may be integral part of the base and/or may be
slotted
3.104
slotted wall
wall with openings allowing cables to pass through
NOTE The openings can be with open or closed boundary and may have different shapes, normally designed to maintain wiring in
position.
3.105
wall finger
part of a slotted wall between two consecutive slots with open boundary
3.106
break-out line
line which may be available on the walls of a trunking length to facilitate the breaking of walls or parts
thereof, such as a wall finger
4 General requirements
Replacement:
Slotted cable trunking systems shall be so designed and constructed that where required they ensure
reliable support, accommodation and segregation of the insulated conductors and/or cables contained
therein.
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
slotted cable trunking system.
Compliance is checked by carrying out all the tests specified.
5 General conditions for tests
This clause of Part 1 is applicable.

6 Classification
This clause of Part 1 is applicable except as follows.
6.2 Not applicable
6.3 Table 2 is not applicable.
6.5 Not applicable
6.6 Not applicable
6.7 Not applicable
6.9 Not applicable
6.10 Not applicable
Addition:
6.101 According to the intended installation positions
6.101.1 Mounted on vertical or horizontal surface
6.101.2 Mounted on vertical or horizontal surface except in a cover down position
7 Marking and documentation
This clause of Part 1 is applicable.
8 Dimensions
This clause of Part 1 is applicable except as follows.
Addition:
8.101 Preferred solution for fixing holes, if any, in the base of the slotted trunking lengths according to
the different trunking widths as shown in Figure 101 is as follows:
- trunking lengths with a nominal width less or equal to 12,5 mm should preferably have one row of
small holes only, as shown in Figure 102 b);
- trunking lengths with a nominal width greater than 12,5 mm and less or equal to 62,5 mm, should
preferably have one row of holes only, alternately as shown in Figure 102 a) and in Figure 102 b);
- trunking lengths with a nominal width greater than 62,5 mm should preferably have two or more rows
of holes alternately as shown in Figure 102 a) and in Figure 102 b), positioned at a distance of 25 mm
or 50 mm apart, symmetrically
...