EN 50085-1:2005

SLOVENSKI SIST EN 50085-1:2006

STANDARD
januar 2006
Sistemi kabelskih korit in sistemi kabelskih cevi za električne inštalacije – 1.
del: Splošne zahteve
(istoveten EN 50085-1:2005)
Cable trunking systems and cable ducting systems for electrical installations - Part
1: General requirements
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 50085-1
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2005
ICS 29.120.10 Supersedes EN 50085-1:1997 + A1:1998

English version
Cable trunking systems and cable ducting systems
for electrical installations
Part 1: General requirements
Systèmes de goulottes et de conduits Elektroinstallationskanalsysteme
profilés pour installations électriques für elektrische Installationen
Partie 1: Règles générales Teil 1: Allgemeine Anforderungen

This European Standard was approved by CENELEC on 2005-04-01. 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, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and 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

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50085-1:2005 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 50085-1 on 2005-04-01.
This European Standard supersedes EN 50085-1:1997 + A1:1998.
NOTE  EN 50085-1:1997 + A1:1998 will remain valid as long as Part 2-3 has not been aligned with the second edition of
Part 1.
The following dates were fixed:

– latest date by which the EN has to be implemented

at national level by publication of an identical
(dop) 2006-04-01
national standard or by endorsement

– latest date by which the national standards conflicting
(dow) –*
with the EN have to be withdrawn
* Open, depending on revision of Part 2-3, to be aligned with this Part 1.
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 the 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.
_________
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Contents
1 Scope. 4
2 Normative references. 4
3 Definitions. 5
4 General requirements. 8
5 General conditions for tests. 9
6 Classification. 9
7 Marking and documentation . 12
8 Dimensions. 13
9 Construction. 13
10 Mechanical properties . 19
11 Electrical properties. 22
12 Thermal properties. 25
13 Fire hazard. 26
14 External influences. 28
15 Electromagnetic compatibility . 29

Annex A (informative) Types of cable trunking systems (CTS) and cable ducting systems
(CDS) . 40
Annex B (informative) A - Deviations. 42
Annex C (normative) CTS/CDS IK code . 43

Figure 1 – Types and application of trunking systems (CTS) and ducting systems (CDS). 30
Figure 2 – Example of impact test apparatus. 31
Figure 3 – Arrangement for test for resistance to flame propagation. 32
Figure 4 – Enclosure for test for resistance to flame propagation . 33
Figure 5 – Ball pressure test apparatus. 34
Figure 6 – Electrical impedance tests arrangement . 36
Figure 7– Examples of membranes and grommets. 37
Figure 8 – Apparatus for testing the resistance of cable anchorage to pull force. 38
Figure 9 – Typical apparatus for testing the resistance of cable anchorage to twist force. 39

Table 1 – Minimum storage and transport temperature. 10
Table 2 – Minimum installation and application temperature. 10
Table 3 – Maximum application temperature . 10
Table 4 – Torque values for the test of screwed connections. 15
Table 5 – Forces and torques to be applied to cable anchorage. 19
Table 6 – Impact test values . 20

1 Scope
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.
This standard does not apply to conduit systems, cable tray systems, cable ladder systems,
power track systems or equipment covered by other standards.
This Part 1 shall be used in conjunction with the relevant Part 2 for particular requirements.
NOTE This Part 1 is not intended to be used by itself.
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.
EN 22768-1 1993 General tolerances - Part 1: Tolerances for linear and angular
dimensions without individual tolerance indications
(ISO 2768-1:1989)
EN 50085-2 Series Cable trunking systems and cable ducting systems for electrical
installations - Part 2: Particular requirements
EN 50102 1995 Degrees of protection provided by enclosures for electrical
+ A1 1998 equipment against external mechanical impacts (IK code)
EN 60423 1994 Conduits for electrical purposes - Outside diameters of conduits for
electrical installations and threads for conduits and fittings
(IEC 60423:1993, modified)
EN 60529 1991 Degrees of protection provided by enclosures (IP Code)
(IEC 60529:1989)
EN 60695-2-4/1 1993 Fire hazard testing - Part 2: Test methods - Section 4/Sheet 1: 1 kW
nominal pre-mixed test flame and guidance (IEC 60695-2-4/1:1991)
EN 60695-2-11 2001 Fire hazard testing - Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method for end-products
(IEC 60695-2-11:2000)
EN 61032 1998 Protection of persons and equipment by enclosures - Probes for
verification (IEC 61032:1997)
HD 383 S2 1986 Conductors of insulated cables
(IEC 60228:1978 + IEC 60228A:1982)
HD 384.1 S1 1979 Electrical installations of buildings
(IEC 60364:1:1972 + A1:1976, modified)

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HD 384.5.51 S1 1985 Part 5: Selection and erection of electrical equipment - Chapter 51:
Common rules (IEC 60364-5-51:1979, modified)
HD 384.5.54 S1 1988 Chapter 54: Earthing arrangements and protective conductors
(IEC 60364-5-54:1980, modified)
IEC 60050-826 2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical
installations
database
IEC 60417 Graphical symbols for use on equipment
3 Definitions
For the purpose of this European Standard the following definitions apply.
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 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 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 A system does not necessarily include all system components a) to e). Different combinations of system
components may 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 An apparatus mounting device can also be a fitting, a trunking length, etc.
3.9
system accessory
system component which provides a supplementary function
NOTE  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 is liable to catch fire as a result of an applied flame, in which the flame
does not propagate and which extinguishes itself within a limited time after the flame is removed
3.14
external influence
factor which may affect the system
3.15
Void
3.16
gland
device designed to permit the entry of a cable or flexible cable into equipment, and which provides
sealing and retention. It may also provide other functions such as earthing, bonding, insulation,
cable guarding, strain relief or a combination of these
3.17
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
[IEV 826-12-08, mod.]
3.18
cable anchorage
system accessory to relieve conductors in terminals and terminations from strain by resisting the
pull and twist forces on cable

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3.19
cable restrainer
system accessory to relieve conductors in terminals and terminations from strain by resisting the
pull force on cable or insulated conductors
3.20
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
3.21
grommet
comp
...