SIST EN 50085-1:2006

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
SIST EN 50085-1:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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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

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EN 50085-1:2005 - 2 -
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

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EN 50085-1:2005 - 4 -
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

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EN 50085-1:2005 - 6 -
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
component or an integral part of an enclosure to support and protect the cable, conduit or ducting
or trunking at the point of entry. It may also prevent the ingress of moisture or contaminants (see
Figure 7)
3.22
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. It may also prevent the ingress of
moisture or contaminants. An entry membrane may be part of a grommet (see Figure 7)
3.23
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)
3.24
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
3.25
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
3.26
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  Fire resistant (adjective) refers only to this ability.
3.27
skirting CTS/CDS
CTS/CDS intended to be installed on the lower part of a wall
3.28
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. The required agents are applied and spread in such quantities that no pools are
formed and soaking of the floor covering does not occur
NOTE  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.)

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EN 50085-1:2005 - 8 -
3.29
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
NOTE  Examples of wet treatment are: wet scrubbing, manual or mechanical wiping.
3.30
(conductive) screen
conductive part that encloses or separates electric circuits and/or conductors
[IEV 195-02-38]
3.31
(electrically)protective screen
conductive screen used to separate an electric circuit and/or conductors from hazardous-live-
parts
[IEV 195-06-17]
3.32
(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
[IEV 195-06-18]
3.33
(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
[IEV 195-06-19]
3.34
partition (of an assembly)
part of an assembly separating one compartment from other compartments
[IEV 441-13-6]
3.35
internal protective partition
partition which when used in combination with basic insulation provides electrically protective
separation between compartments of the CTS/CDS
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.

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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 standard are type tests.
5.2 Samples of system components are called, hereafter 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 such
system components.
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, may also submit an additional set of samples which may be
necessary should 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.

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EN 50085-1:2005 - 10 -
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 1 J.
6.2.3 CTS/CDS for impact 2 J.
6.2.4 CTS/CDS for impact 5 J.
6.2.5 CTS/CDS for impact 20 J.
6.3 According to temperatures as given in Tables 1, 2 and 3
Table 1 – Minimum storage and transport temperature
Minimum storage and
transport temperature
± 2 °C
- 45
- 25
- 15
- 5

Table 2 – Minimum installation and application temperature
Minimum installation and
application temperature
± 2 °C
- 25
- 15
- 5
+ 5
+ 15

Table 3 – Maximum application temperature
Maximum application temperature
± 2 °C
+ 60
+ 90
+ 105
+ 120

NOTE The above application temperatures are operating temperatures and not ambient temperatures.

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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 EN 60529:1991
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
6.8.1 CTS/CDS with low protection outside and inside.
6.8.2 CTS/CDS with medium protection outside, and low protection inside.
6.8.3 CTS/CDS with medium protection outside and inside.
6.8.4 CTS/CDS with high protection outside, and low protection inside.
6.8.5 CTS/CDS with high protection outside, and medium protection inside.
6.8.6 CTS/CDS with high protection outside and inside.

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EN 50085-1:2005 - 12 -
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.
6.10 According to electrically protective separation
6.10.1 CTS/CDS without internal protective partition
6.10.2 CTS/CDS with internal protective partition
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, it is sufficient to mark the product identification on the smallest
supplied package, the manufacturer's or responsible vendor's name or trade mark or identification
mark being marked on the product.
When it is not possible to have a legible marking on small components, due to the small size of
the item, it is sufficient to place these 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.
NOTE The necessity to mark on the product, the flame propagating characteristic, is under consideration.
Compliance is checked by inspection using one sample.
7.2 Marking shall be durable and easily legible.
Compliance is checked by inspection and for marking on the product, in addition, by rubbing the
marking by hand 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 petroleum spirit.
NOTE 1  Petroleum spirit is defined as the aliphatic solvent hexane with a content of aromatics of maximum 0,1 %
volume, a kauri-butanol value of 29, initial boiling point of 65 °C, a dry point of 69 °C and a specific gravity of
approximately 0,68 kg/l.
NOTE 2  Marking may be applied, for example, by moulding, pressing, engraving, printing, adhesive labels, or water
slide transfers.
NOTE 3  Marking made by moulding, pressing or engraving is not subjected to the rubbing test.
After the rubbing test, the marking shall be legible.
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,

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- 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,
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 classification is maintained after installation.
Compliance is checked by inspection.
7.4 If symbols are used they shall comply with IEC 60417 database such as:
Amperes A
Volts V
Frequency Hz
Alternating current ∼ or ac
Line L or L1, L2, L3 etc in case of more than one
Neutral N
Protective earth

Fuse

Degree of protection IPXX (see EN 60529)
For the marking of rated current and rated voltage the figures may be used alone. These figures
may be placed on one line separated by an oblique line or the figures for rated current may be
placed above the figures for rated voltage, separated by a horizontal line.
The marking for the nature of supply shall be placed next to the marking for rated current and
rated voltage
The marking for current, voltage and nature of supply may be, for example, as follows:
16
16 A 440 V ~ or 16/440 ~ or ~

440
8 Dimensions
Dimensions shall comply with the requirements of the relevant Part 2.
9 Construction
9.1 Sharp edges
Any surface or edge shall not damage the insulated conductors or cables.
Compliance is checked by inspection, if necessary after cutting the samples apart.
Screws, studs or other securing devices provided shall be fitted so as not to damage the insulated
conductors or cables.

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EN 50085-1:2005 - 14 -
Compliance is checked by inspection.
9.2 Apparatus mounting
If the CTS/CDS is provided with means for the mounting of apparatus, these means shall
adequately secure this apparatus.
Compliance is checked by the test of 10.5.
9.3 Means for protective separation and/or retention
If the CTS/CDS is provided with means for the protective separation and/or retention, these
means shall have adequate mechanical performance to fulfil their function.
Compliance is checked by the tests of 10.2.
9.4 Mechanical connections
Screwed connections and other mechanical conne
...