EN 50369:2005

SLOVENSKI SIST EN 50369:2006
STANDARD
januar 2006
Sistemi s tekočinsko neprepustnim oplaščenjem za urejanje okablenja
(istoveten EN 50369:2005)
Liquid tight sheathing systems for cable management
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 50369
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2005
ICS 29.120.10
English version
Liquid tight sheathing systems for cable management

Systèmes de gaines souples de Flüssigkeitsdichte Elektroinstallations-
protection contre les liquides pour la schlauchsysteme
gestion
du câblage
This European Standard was approved by CENELEC on 2005-04-12. 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 50369:2005 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 50369 on 2005-04-12.
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) 2006-04-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-04-01
__________
– 3 – EN 50369:2005
Contents
Page
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 .8
8 Dimensions.8
9 Construction .8
10 Mechanical properties.9
11 Electrical properties .11
12 Thermal properties .12
13 Fire hazard .13
14 External influences .15
15 Electromagnetic compatibility.17

Annex A (informative) A-deviations.25

Figure 1 – Gauge for checking the minimum inside diameter of the liquid tight sheathing
system .18
Figure 2 – Impact test apparatus .19
Figure 3 – Arrangement for flexing test.20
Figure 4 – Arrangement for insulation resistance and electric strength test .21
Figure 5 – Enclosure for burning test.22
Figure 6 – Arrangement for burning test .23
Figure 7 – Assembly of liquid tight sheathing and fitting for bonding test .24

Table 1 – Lower temperature range .7
Table 2 – Upper temperature range.7
Table 3 – Impact test values.9
Table 4 – Tensile force.10
Table 5 – Times of exposure of the sample to the flame .14
Table 6 – Resistance to corrosion classification.16

1 Scope
This European Standard specifies the requirements against ingress of water and tests for flexible
non-flame propagating liquid tight sheathing systems for the protection and management of
insulated conductors and/or cables in electrical installations or in communication systems up to
1 000 V a.c. and/or 1 500 V d.c. This standard applies to metallic, non-metallic and composite
liquid tight sheathing systems including threaded fittings which terminate the system This
European Standard does not apply to conduit systems for electrical installations which come
within the scope of EN 50086 series as well as EN 61386 series. Liquid tight sheathing systems
do not provide mechanical protection to insulated conductors and/or cables. They are not for use
within the construction of buildings as a component of a fixed wiring system.
NOTE Earthing conductors may or may not be insulated.
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 60423 1994 Conduits for electrical purposes – Outside diameters of conduits
for electrical installations and threads for conduits and fittings
(IEC 60423:1993, mod.)
EN 60529 1991 Degrees of protection provided by enclosures (IP Code)
(IEC 60529:1989)
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 60695-11-2 2003 Fire hazard testing – Part 11-2: Test flames - 1 kW nominal pre-
mixed flame - Apparatus, confirmatory test arrangement and
guidance (IEC 60695-11-2:2003)
3 Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
liquid tight sheathing system
closed wiring system consisting of liquid tight sheathing and terminating fittings for the protection
against ingress of liquid and management of insulated conductors and/or cables in electrical or
communication installations, allowing them to be drawn in and/or replaced, but not to be inserted
laterally
3.2
liquid tight sheathing
component of a closed wiring system which protects insulated conductors and/or cables against
water
3.3
terminating fitting
terminating device designed to terminate a liquid tight sheathing system
3.4
metallic sheathing and/or terminating fitting
sheathing or terminating fitting which consists of metal only

– 5 – EN 50369:2005
3.5
non-metallic sheathing and/or terminating fitting
sheathing or terminating fitting which consists uniquely of non-metallic material and which has no
metallic components whatsoever
3.6
composite sheathing and/or terminating fitting
sheathing or terminating fitting comprising both metallic and non-metallic materials
3.7
non-flame propagating sheathing and/or terminating fitting
sheathing or terminating fitting which is liable to catch fire as a result of an applied flame, but in
which the flame does not propagate and which extinguishes itself within a limited time after the
flame is removed
3.8
external influence
factors which may affect the sheathing system
NOTE Examples of such factors are a presence of water, oil or building materials, low and high temperatures and
corrosive or polluting substances.
4 General requirements
4.1 Liquid tight sheathing systems shall be so designed and constructed that in normal use their
performance is reliable and they provide protection to the user to the user or surroundings.
When assembled in accordance with manufacturer's instructions, the liquid tight sheathing
system, shall provide protection against ingress of liquids and electrical protection of the insulated
conductors and cables contained therein.
4.2 Liquid tight sheathing and terminating fittings shall withstand the stresses likely to occur
during transport, storage, recommended installation practice and application.
4.3 Compliance is checked by carrying out all the tests specified.
5 General conditions for tests
5.1 Tests in accordance with this standard are type tests.
5.2 Unless otherwise specified, the tests shall be carried out at an ambient temperature of
(20 ± 5) °C.
5.3 Unless otherwise specified, each test shall be made on three new samples.
NOTE Certain tests, for instance the checking of dimensions, do not affect a change in the property of the samples,
therefore these samples are considered as new samples and can be used for further tests.
5.4 Samples of liquid tight sheathing and fittings shall be conditioned for at least 240 h, at a
temperature of (23 ± 2) °C and a relative humidity between 40 % and 60 %. All tests shall be
carried out immediately after general conditioning.

5.5 Unless otherwise specified, the samples for each test shall be in a clean and new condition,
with all parts in place and mounted as in normal use. After checking dimensions in accordance
with Clause 8, and unless otherwise specified in the relevant test, the fittings shall be assembled
with adequate lengths of liquid tight sheathing of the type for which they are intended. Due regard
shall be taken of the manufacturer's instructions, especially where force is required in the
assembly of the joint.
NOTE Where similarities are claimed, the selection of representative fittings for test purposes can be agreed between
the manufacturer, or responsible vendor, and the testing station
5.6 Unless otherwise specified, three samples are subjected to the tests and the requirements
are satisfied if the tests are met.
If only one of the samples does not satisfy a test, due to an assembly or a manufacturing defect,
that test and any preceding one which may have influenced the result 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 If the additional set of samples is not submitted at the same time, a failure of one sample will entail a rejection.
The applicant when submitting the first set of samples, may also submit the additional set of samples which may used,
should one sample fail. The testing station will then, without further request, test the additional set of samples and will
not be accepted only if a further failure occurs.
5.7 When toxic or hazardous processes are used, due regard shall be taken of the safety of the
persons within the test area.
5.8 Liquid tight sheathing systems which are used as an integral part of other equipment shall
also be tested in accordance with the relevant standard for that equipment.
6 Classification
6.1 According to mechanical properties
6.1.1 Resistance to impact
1 Very light
2 Light
3 Medium
6.1.2 Tensile strength
1 Very light
2 Light
3 Medium
– 7 – EN 50369:2005
6.2 According to temperature
6.2.1 According to low temperature
Table 1 – Lower temperature range
Classification Transport, application
(1st numeral) and installation temperature not less
than
1X +5 °C
2X -5 °C
3X -15 °C
4X -25 °C
6.2.2 According to high temperature
Table 2 – Upper temperature range
Classification Application and
(2nd numeral) installation temperature not more than
X1 60 °C
X2 90 °C
X3 105 °C
X4 120 °C
X5 150 °C
X6 250 °C
6.3 According to electrical characteristics
6.3.1 With electrical continuity characteristics
6.3.2 With electrical insulating characteristics
6.3.3 None declared
6.4 According to resistance to external influences
6.4.1 Protection against ingress of solid objects: Protection in accordance with EN 60529 to a
minimum of IP5X
6.4.2 Protection against ingress of water: Protection in accordance with EN 60529 to a minimum
of IPX5
6.4.3 Resistance against corrosion
6.4.3.1 Without p
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