CLC/TS 50467:2008

SLOVENSKI STANDARD
01-julij-2008
Železniške naprave - Železniška vozila - Konektorji, zahteve in preskusne metode
Railway applications - Rolling stock - Electrical connectors, requirements and test
methods
Bahnanwendungen - Fahrzeuge - Elektrische Steckverbinder, Bestimmungen und
Prüfverfahren
Applications ferroviaires - Matériel roulant - Connecteurs électriques, exigences et
méthodes d'essai
Ta slovenski standard je istoveten z: CLC/TS 50467:2008
ICS:
31.220.10 9WLþLLQYWLþQLFHNRQHNWRUML Plug-and-socket devices.
Connectors
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CLC/TS 50467
SPÉCIFICATION TECHNIQUE
April 2008
TECHNISCHE SPEZIFIKATION
ICS 71.080.60
English version
Railway applications -
Rolling stock -
Electrical connectors,
requirements and test methods
Applications ferroviaires -  Bahnanwendungen -
Matériel roulant - Fahrzeuge -
Connecteurs électriques, Elektrische Steckverbinder,
exigences et méthodes d'essai Bestimmungen und Prüfverfahren

This Technical Specification was approved by CENELEC on 2008-02-15.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, 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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 50467:2008 E
Foreword
This Technical Specification was prepared by SC 9XB, Electromechanical material on board rolling stock, of
Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways.
The text of the draft was submitted to vote in accordance with the Internal Regulations, Part 2,
Subclause 11.3.3.3 and was approved by CENELEC as CLC/TS 50467 on 2008-02-15.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2008-08-15
__________
– 3 – CLC/TS 50467:2008
Contents
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Definitions . 9
4 Technical information (electrical ratings) . 14
5 Classification . 14
5.1 General . 14
5.2 Severity of service conditions in different rolling stock technologies . 14
5.3 Intended use of rolling stock . 15
5.4 Location of connector on board rolling stock . 15
6 Requirements . 16
6.1 General . 16
6.2 Marking and identification . 17
6.3 Provision against incorrect mating (non-intermateable) . 18
6.4 Protection against electric shock . 18
6.5 Provisions for earthing . 18
6.6 Terminations and connection methods . 18
6.7 Resistance to ageing . 19
6.8 General design . 19
6.9 Design of a free connector . 20
6.10 Interlock . 20
6.11 Degree of protection IP . 20
6.12 Dielectric strength. 20
6.13 Mechanical and electrical durability . 20
6.14 Cable strain relief . 21
6.15 Mechanical strength . 21
6.16 Vibration and shock . 21
6.17 Insulation coordination . 21
6.18 Temperature classes . 21
6.19 Temperature rise . 22
6.20 Protection against corrosion . 22
6.21 Electromagnetic compatibility (EMC) requirements . 22
6.22 Fire behaviour of materials and components . 22
6.23 Resistance to chemically active substances and to contaminating fluids . 23
6.24 Resistance to ozone . 23
6.25 Resistance to UV. 23
7 Tests . 23
7.1 General . 23
7.2 Test schedule . 25
7.3 Tests on raw materials . 31
7.4 Visual examination . 31
7.5 Durability of marking . 31
7.6 Interlock . 32
7.7 Protection against electric shock . 32
7.8 Temperature rise . 32
7.9 Mechanical operation . 33

7.10 Vibration and shock . 33
7.11 Measurement of clearances and creepage distances . 33
7.12 Dielectric strength. 33
7.13 Resistance between accessible metal parts and the protective earthing contact . 34
7.14 Corrosion test . 34
7.15 Ozone resistance (ISO 1431-1) . 34
7.16 Resistance to UV (EN ISO 4892-2) . 34
7.17 Resistance to fluids (EN 60512-19-3) . 34
Annex A (informative) Additional characteristics to be agreed by the manufacturer and the user . 35
Annex B (informative) Severity of the service conditions in different rolling stock locations . 37
Bibliography . 38

Figures
Figure 1 – Typical examples of connections . 9
Figure 2 – Multipole connectors . 10
Figure 3 – Typical connector locations on board rolling stock . 15
Figure 4 – Test sample for temperature rise test . 32

Tables
Table 1 – Example of typical connector locations on board rolling stock . 16
Table 2 – Preferred number of operating cycles . 20
Table 3 – Preferred test temperatures . 22
Table 4 – Plan of specimens required for tests . 24
Table 5 – Mechanical test group A . 25
Table 6 – Service life test group B . 26
Table 7 – Thermal test group C . 26
Table 8 – Climatic test group D . 27
Table 9 – Degree of protection, test group E . 28
Table 10 – Vibration and shock test group F . 29
Table 11 – Resistance to fluids test group G . 30
Table 12 – Shielding effectiveness test group H . 31
Table 13 – Tests on raw materials . 31
Table 14 – Test voltages . 34
Table B.1 – Minimum severity of service conditions in different rolling stock locations . 37

– 5 – CLC/TS 50467:2008
Introduction
This Technical Specification provides performance requirements and tests for low-voltage electrical
connectors deemed to be installed on board railway rolling stock, either indoors or outdoors. Safety
requirements and tests for electrical connectors are already covered in general by EN 61984. The additional
requirements and testing of specific characteristics demanded by rolling stock applications are set out in this
Technical Specification. One goal of this Technical Specification is to avoid retesting of electrical connectors
already in compliance with EN 61984 for those characteristics that have been assessed suitable also for use
on board rolling stock.
Among the additional requirements for use on board rolling stock, those that can be verified by
documentation of tests on the raw materials, are distinguished from those to be assessed by tests on the
component.
Due to the wide spectrum of existing and future specific rolling stock applications of electrical connectors,
this Technical Specification does not select any particular geometric configuration of connectors, nor
establish any particular values for electrical ratings such as voltage and current, or for any other
characteristic. All such details should be selected and agreed between the parties involved (e.g.
manufacturer and user) depending on the electrical, mechanical and environmental conditions expected in
the intended use. Annexes A and B of this Technical Specification provide guidance.
Upon agreement between the parties involved, this Technical Specification may be used in conjunction with
existing connector detail specifications for interchangeability purposes.
Other standards may be developed in future under the umbrella format of this specification, for particular
connector designs for applications on board rolling stock, to fix dimensions for interchangeability and to set
the additional requirements for specific applications that, due to complexity and variety, are left here to
agreement between parties involved.
This Technical Specification does not cover
– connectors with breaking capacity (CBCs) as defined in EN 61984, 3.2, because on board rolling stock
connectors are not deemed to be operated (i.e. connected or disconnected) under load or when live,
either by means of procedures or by the presence of interlocks, as required by EN 50153,
NOTE For the purpose of this Technical Specification connectors on board rolling stock are therefore considered as being always
without breaking capacity, therefore where needed for safety reasons, adequate procedures or interlocks (i.e. locking devices that
cannot be opened without the aid of a special tool) shall be provided in the end application;
– non-rewirable connectors as defined in EN 61984, 3.5,
– automatic couplers, due to their additional mechanical complexity and the need for more specific
requirements and testing,
– inter-vehicle jumpers, as they are connector and cable assemblies whose characteristics depend on
those of both elements. Inter-vehicle connectors within the limits set in the scope of this Technical
Specification are therefore covered by the agreed choice of suitable mechanical and environmental
characteristics as suggested by Annex B.

1 Scope
This Technical Specification retains EN 61984 as the minimum performance requirements for railway rolling
stock electrical connectors.
It identifies additional terms, test methods and performance requirements for single-pole and multipole
connectors with rated voltages up to 1 000 V, rated currents up to 125 V per contact and frequencies below
3 MHz used for indoor and outdoor applications in railway rolling stock.
This Technical Specification identifies the application levels for electrical connectors based on:
– the severity of the service conditions in different rolling stock technologies;
– the intended use of the rolling stock;
– the location of the connector in the rolling stock system.
This Technical Specification is not applicable to internal connections of electronic devices such as
connectors for printed boards and rack-and-panel connectors.
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 50124-1:2001 Railway applications – Insulation coordination – Part 1: Basic requirements –
+ A2:2005 Clearances and creepage distances for all electrical and electronic equipment
EN 50125-1:1999 Railway applications – Environmental conditions for equipment –
Part 1: Equipment on board rolling stock
EN 50153:2002 Railway applications – Rolling stock – Protective provisions relating to electrical
hazards
EN 50264-1:2002 Railway applications – Railway rolling stock cables having special fire performance –
Standard wall – Part 1: General requirements
EN 50264-2:2002 Railway applications – Railway rolling stock cables having special fire performance –
Standard wall – Part 2: Single core cables
EN 50264-3:2002 Railway applications – Railway rolling stock cables having special fire performance –
Standard wall – Part 3: Multicore cables
EN 50306-1:2002 Railway applications – Railway rolling stock cables having special fire performance –
Thin wall – Part 1: General requirements
EN 50306-2:2002 Railway applications – Railway rolling stock cables having special fire performance –
Thin wall – Part 2: Single core cables
EN 50306-3:2002 Railway applications – Railway rolling stock cables having special fire performance –
Thin wall – Part 3: Single core and multicore cables (pairs, triples and quads)
screened and thin wall sheathed
EN 50306-4:2002 Railway applications – Railway rolling stock cables having special fire performance –
Thin wall – Part 4: Multicore and multipair cables standard wall sheathed

– 7 – CLC/TS 50467:2008
EN 50382-1:2008 Railway applications – Railway rolling stock high temperature power cables having
special fire performance – Part 1 – General requirements
EN 50382-2:2008 Railway applications – Railway rolling stock high temperature power cables having
special fire performance – Part 2: Single core silicone rubber insulated cables for
120 °C or 150 °C
EN 60068-1:1994 Environmental testing – Part 1: General and guidance (IEC 60068-1:1988 +
corrigendum Oct. 1988 + A1:1992)
EN 60068-2-70:1996 Environmental testing – Part 2-70: Tests – Test Xb: Abrasion of marking and
letterings caused by rubbing of fingers and hands (IEC 60068-2-70:1995)
EN 60309-1:1999 Plugs, socket-outlets and couplers for industrial purposes – Part 1: General
requirements (IEC 60309-1:1999)
EN 60352-1:1997 Solderless connections – Part 1: Wrapped connections – General requirements,
test methods and practical guidance (IEC 60352-1:1997)
EN 60352-2:2006 Solderless connections – Part 2: Crimped connections – General requirements,
test methods and practical guidance (IEC 60352-2:2006)
EN 60352-3:1994 Solderless connections – Part 3: Solderless accessible insulation displacement
connections – General requirements, test methods and practical guidance
(IEC 60352-3:1993)
EN 60352-4:1994 Solderless connections – Part 4: Solderless non-accessible insulation
+ A1:2000 displacement connections – General requirements, test methods and practical
guidance (IEC 60352-4:1994 + A1:2000)
EN 60352-5:2001 Solderless connections – Part 5: Press-in connections – General requirements, test
+ A1:2003 methods and practical guidance (IEC 60352-5:2001 + A1:2003)
EN 60352-6:1997 Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance (IEC 60352-6:1997)
EN 60352-7:2002 Solderless connections – Part 7: Spring clamp connections – General
requirements, test methods and practical guidance (IEC 60352-7:2002)
EN 60512-1:2001 Connectors for electronic equipment – Tests and measurements –
Part 1: General (IEC 60512-1:2001)
EN 60512-1-1:2002 Connectors for electronic equipment – Tests and measurements –
Part 1-1: General examination – Test 1a: Visual examination (IEC 60512-1-1:2002)
EN 60512-4-1:2003 Connectors for electronic equipment – Tests and measurements –
Part 4-1: Voltage stress tests – Test 4a: Voltage proof (IEC 60512-4-1:2003)
EN 60512-5-1:2002 Connectors for electronic equipment – Tests and measurements –
Part 5-1: Current-carrying capacity tests – Test 5a: Temperature rise
(IEC 60512-5-1:2002)
EN 60512-11-6:2002 Connectors for electronic equipment – Tests and measurements –
Part 11-6: Climatic tests – Test 11f: Corrosion, salt mist (IEC 60512-11-6:2002)
EN 60512-11-7:2003 Connectors for electronic equipment – Tests and measurements –
Part 11-7: Climatic tests – Test 11g: Flowing mixed gas corrosion test
(IEC 60512-11-7:2003)
EN 60512-19-3:1997 Electromechanical components for electronic equipment – Basic testing
procedures and measuring methods – Part 19: Chemical resistance tests –
Section 3: Test 19c: Fluid resistance (IEC 60512-19-3:1997)

EN 60512-23-3:2001 Electromechanical components for electronic equipment – Basic testing
procedures and measuring methods – Part 23-3: Test 23c: Shielding effectiveness
of connectors and accessories (IEC 60512-23-3:2000)
EN 60512-23-4:2001 Connectors for electronic equipment – Test and measurement –
Part 23-4: screening and filtering tests – Test 23d: Transmission line reflections in
the time domain (IEC 60512-23-4:2001)
EN 60529:1991 Degrees of protection provided by enclosures (IP Code)
+ A1:2000 (IEC 60529:1989 + A1:1999)
EN 60664-1:2007 Insulation coordination for equipment within low-voltage systems –
Part 1: Principles, requirements and tests (IEC 60664-1:2007)
EN 60999-1:2000 Connecting devices – Electrical copper conductors – Safety requirements for
screw-type and screwless-type clamping units – Part 1: General requirements and
particular requirements for clamping units for conductors from 0,2 mm² up to
35 mm² (included) (IEC 60999-1:1999)
EN 60999-2:2003 Connecting devices – Electrical copper conductors – Safety requirements for
screw-type and screwless-type clamping units – Part 2: Particular requirements for
clamping units for conductors above 35 mm² up to 300 mm² (included)
(IEC 60999-2:2003)
EN 61210:1995 Connecting devices – Flat quick-connect terminations for electrical copper
conductors – Safety requirements (IEC 61210:1993, mod.)
EN 61373:1999 Railway applications – Rolling stock equipment – Shock and vibration tests
(IEC 61373:1999)
EN 61984:2001 Connectors – Safety requirements and tests (IEC 61984:2001)
EN ISO 4892-2:1999 Plastics – Methods of exposure to laboratory light sources – Xenon arc sources
(ISO 4892-2:1994)
EN ISO 6988:1994 Metallic and other non-organic coatings – Sulfur dioxide test with general
condensation of moisture (ISO 6988:1985)
HD 588.1 S1:1991 High-voltage test techniques – Part 1: General definitions and test requirements
(IEC 60060-1:1989 + corrigendum Mar. 1990)
IEC 60050-581:1978 International Electrotechnical Vocabulary (IEV) – Chapter 581: Electromechanical
+ A1:1998 components for electronic equipment
IEC 60050-811 International Electrotechnical Vocabulary (IEV) – Chapter 811: Electric traction
IEC 60050-826 International Electrotechnical Vocabulary (IEV) – Part 826: Electrical installations
IEC 60417-DB Graphical symbols for use on equipment
IEC 60512-9:1992 Electromechanical components for electronic equipment; basic testing procedures
and measuring methods – Part 9: Miscellaneous tests
IEC 60760 Flat, quick-connect terminations
IEC/TS 60536 Classification of electrical and electronic equipment with regard to protection
against electric shock
ISO 1431-1:2004 Rubber, vulcanized or thermoplastic – Resistance to ozone cracking –
Part 1: Static and dynamic testing

– 9 – CLC/TS 50467:2008
3 Definitions
For the purposes of this document, the following terms and definitions apply in addition of those given in
IEC 60050-581.
3.1
connection
two mated connectors or contacts
EXAMPLES See Figure 1.
a) Cable-to-cable connection b) Connection to apparatus
Figure 1 – Typical examples of connections
3.2
connector
component which terminates conductors for the purpose of providing connection to and disconnection from a
suitable mating component, and which are not intended to be connected and disconnected under electrical
load
[IEC 60050 (581) 06-01, modified]
3.3
free connector
connector for attachment to the free end of a wire or cable
[IEC 60050 (581) 06-12]
3.4
fixed connector
connector for attachment to a rigid surface
[IEC 60050 (581) 06-10]
3.5
enclosed connector
connector where protection against electric shock is provided by its enclosures
3.6
unenclosed connector
connector where protection against electric shock is provided by the enclosure of the equipment, in which the
connector is mounted, in accordance with the applicable product safety standard
3.7
inter-vehicle connector
a connector deemed to be assembled with proper cable to form a cable assembly for inter-vehicle electrical
connection
3.8
contact
conductive element in a connector (including means for cable termination) that mates with a corresponding
element to provide an electrical path

3.9
male contact
contact (including means for cable termination) designed for electrical engagement on its outer surface and
to enter a female contact, thus forming an electrical connection
EXAMPLES Tab, pin, blade.
3.10
female contact
contact (including means for cable termination) designed for electrical engagement on its inner surface, and
to accept entry of a male contact, thus forming an electrical connection
EXAMPLES Receptacle, sleeve.
3.11
cable termination
any joining of cable to contact
EXAMPLES Crimp, insulation displacement, screwing, spring clamp.
3.12
multipole connector
a connector with more than one contact
EXAMPLE See Figure 2.
1 2 3
7 6
Key
1 Multiple cable seal 6 Housing seal
2 Male contact 7 Multipole connector
3 Female contact 8 Multipole connection
4 Single cable seal 9 Cable
5 Housing 10 Conductor
Figure 2 – Multipole connectors
3.13
connector coding
device, either visual, or mechanical or sensitive, or a combinations of these, preventing connection of
connectors from the same family and having the same number of contacts but with different coding

– 11 – CLC/TS 50467:2008
3.14
intended use
application conditions of connectors which are included within the permissible rated values and
environmental conditions and characteristic assigned by the manufacturers specification
3.15
interlock
device, either electrical or mechanical, which prevents the contacts of a connector from becoming live before
it is in proper engagement with its counterpart, and which either prevents the connector from being
withdrawn while its contacts are live or makes the contacts dead before separation
[EN 60309-1, 2.9 modified]
3.16
cycle of mechanical operation (mating cycles)
one insertion and one withdrawal of the connector halves
[EN 61984, 3.9]
3.17
clamping unit
part(s) of the terminal necessary for the mechanical clamping and the electrical connection of the
conductor(s), including the parts which are necessary to ensure the correct contact pressure
[EN 60999-1, 2.1]
3.18
upper limiting temperature
maximum permissible temperature of a connector assigned by the manufacturer at which the connector may
still be operated. It takes into consideration the temperature rise due to heating of the contacts by current
flow plus the ambient temperature
3.19
lower limiting temperature
minimum permissible temperature of a connector assigned by the manufacturer at which the connector may
still be operated
3.20
clearance
shortest distance in air between two conductive parts
[EN 60664-1, 1.3.2]
3.21
creepage distance
shortest distance along the surface of the insulating material between two conductive parts
[EN 60664-1, 1.3.3]
3.22
over voltage category
numeral defining a transient over voltage condition
[EN 60664-1, 1.3.10]
3.23
pollution
any addition of foreign matter, solid, liquid, or gaseous (ionised gases), that can result in a reduction of
electrical strength or specific surface resistivity of the insulation
[EN 60664-1, 1.3.11]
3.24
pollution degree
numeral characterising the expected pollution of the micro-environment
[EN 60664-1, 1.3.13]
3.25
rated voltage
value of voltage assigned by the manufacturer to the connector and to which operation and performance
characteristics are referred
NOTE A connector may have more than one rated voltage value.
[EN 60664-1, 1.3.9 modified]
3.26
rated insulation voltage
a r.m.s. withstand voltage value assigned by the manufacturer to the connector, characterising the specified
(long term) withstand capability of its insulation
NOTE The rated insulation voltage is not necessarily equal to the rated voltage which is primarily related to functional performance.
[EN 60664-1, 1.3.9.1]
3.27
rated impulse voltage
impulse withstand voltage value assigned by the manufacturer to the connector, characterising the specified
withstand capability of its insulation against transient over voltages
[EN 60664-1, 1.3.9.2 modified]
3.28
impulse withstand voltage
highest peak value of impulse voltage, of prescribed form and polarity, which does not cause breakdown of
the insulation under specified conditions
NOTE The impulse withstand voltage is equal to or higher than the rated impulse voltage.
[EN 60664-1, 1.3.8.1]
3.29
r.m.s. withstand voltage (power-frequency withstand voltage)
highest r.m.s. value of a voltage which does not cause breakdown of the insulation under specified
conditions
[EN 60664-1, 1.3.8.2]
3.30
rated current
current value assigned by the manufacturer, which the connector can carry continuously (without
interruption) and simultaneously through all its contacts wired with the largest specified conductor, preferably
at an ambient temperature of 40 °C, without the upper limiting temperature being exceeded
NOTE If other ambient temperature values are used for the definition of the rated current, reference shall be made by the manufacturer
in the technical documentation to the derating curve as defined by EN 60512-5-2, test 5b.
3.31
functional insulation
insulation between conductive parts which is necessary only for the proper functioning of the equipment
[EN 60664-1, 1.3.17.1]
– 13 – CLC/TS 50467:2008
3.32
basic insulation
insulation applied to live parts to provide basic protection against electric shock
NOTE Basic insulation does not necessarily include insulation used exclusively for functional purposes (see IEC/TS 60536, 2.1).
[EN 60664-1, 1.3.17.2]
3.33
supplementary insulation
independent insulation applied in addition to basic insulation, in order to provide protection against electric
shock in the event of a failure of basic insulation (see IEC/TS 60536, 2.2)
[EN 60664-1, 1.3.17.3]
3.34
double insulation
insulation comprising both basic insulation and supplementary insulation (see IEC/TS 60536, 2.3)
[EN 60664-1, 1.3.17.4]
3.35
reinforced insulation
single insulation system applied to live parts, which provides a degree of protection against electric shock
equivalent to double insulation under the conditions specified in the relevant standard (see IEC/TS 60536, 2.4)
NOTE A single insulation system does not imply that the insulation must be a homogeneous piece. It may comprise several layers
which cannot be tested singly as basic or supplementary insulation.
[EN 60664-1, 1.3.17.5]
3.36
internal insulation
part of basic insulation providing the required clearance and creepage distances inside a conducting housing
or enclosure
3.37
protective conductor (symbol PE)
conductor required by some measures of protection against electric shock for electrically connecting any of
the following parts:
− exposed conductive parts,
− extraneous conductive parts,
− main earthing terminal,
− earthed point of the source or artificial neutral
[IEC 60050 (826) 04-05]
3.38
rolling stock
a general term covering all vehicles with or without motors
[IEC 60050 (811) 02-01]
3.39
vehicle
a general term denoting any single item of rolling stock, e.g. a locomotive, a coach or a wagon
[IEC 60050 (811) 02-02]
3.40
vehicle compartment
compartment of vehicles in which people may enter during normal operation
[EN 50125-1, 3.2]
3.41
vehicle cubicle
any enclosure for housing of mechanical, electrical and/or electronic equipment
[EN 50125-1, 3.3]
3.42
electrical operating area
any room or location which serves primarily for the operation of electrical equipment and is normally entered
only by skilled persons or instructed persons
NOTE Generally speaking an electrical operating area is any location (mainly inside the car body) where electrical equipment operate.
The above is the main function of this area but not the only one. In fact normally the area is not kept secured and the protection against
direct contact is achieved by other means (e.g. obstacles).
[EN 50153, 3.2.6]
3.43
closed electrical operating area
any room or location which serve exclusively for the operation of electrical equipment and is kept secure by a
means appropriate to the voltage and location
NOTE 1 Access to such areas is permitted only to skilled persons and instructed persons.
NOTE 2 The definition of closed electrical operating area can be suitable for under floor or upper roof cabinets. Generally speaking it is
any location (inside or outside the car body) which is kept secured because of the voltage that can assume the equipment inside it.
Access to such areas is not allowed to ordinary persons.
[EN 50153, 3.2.1]
4 Technical information (electrical ratings)
For connectors according to this specification, no particular values have been specified for electrical ratings
such as voltage and current. Values shall be specified in compliance with mechanical and environmental
conditions given in the manufacturer's specification depending from the intended use.
NOTE For voltage ratings in electrical circuits and components for rolling stock, information may be found in EN 50153 (see Table 1),
EN 50163, and EN 60077-1.
5 Classification
5.1 General
For the purpose of this specification, in order to apply the relevant test requirements, connectors shall be
classified by the manufacturer’s specification according to their intended use and characteristics, as set out
below.
5.2 Severity of service conditions in different rolling stock technologies
Different rolling stock technologies are e.g. mass transit underground, mass transit and high speed for
passenger trains, or freight trains for non passenger trains. They need specific service conditions as those
listed in Annex B. These have to be agreed between manufacturer and user.

– 15 – CLC/TS 50467:2008
5.3 Intended use of rolling stock
The intended use of rolling stock is affected by the geographical destination and whether is used
underground or above ground. The specific conditions for connectors may differ depending on such intended
use (e.g. underground requirements for fire protection and for resistance to UV are different than for above
ground). The relevant requirements have to be agreed by manufacturer and user.
5.4 Location of connector on board rolling stock
1 4
1 5
2 3
4 6
Figure 3 – Typical connector locations on board rolling stock

Table 1 – Example of typical connector locations on board rolling stock
Location
Examples of consequences on
according Definition Examples
requirements
to Figure 3
indoor vehicle cubicle
(weather-protected)
different vibration and shock
1 closed electrical operating area levels depending on the
outdoor vehicle cubicle
installation on bogie or car body
(weather-protected)
either under-frame or upper-roof
low IP degree required
passenger vehicle compartment
2 Cabin and interiors (air with low dust and
and driver cabin
chemical contamination)
higher temperature resistance
closed electrical operating area;
forced filtered ventilation with machinery compartment
if diesel engine, then resistance to
outside air
fuels and fluids
non weather-protected location
higher IP degree
under car body, roof
outdoor static applications resistance to light (UV)
(non weather-protected locations)
resistance to ozone
for rubber and plastic parts
non weather-protected location
higher IP degree
resistance to light (UV)
5 outdoor dynamic applications inter-vehicle
resistance to ozone
for rubber and plastic parts
higher mechanical resistance
non weather-protected location
higher IP degree
outdoor highly dynamic resistance to light (UV)
bogie
applications resistance to ozone
for rubber and plastic parts
higher mechanical resistance
non weather-protected location
higher IP degree
resistance to light (UV)
resistance to ozone
outdoor highly dynamic
axles for rubber and plastic parts
applications
higher mechanical resistance
Vvry high vibration and shock
constraints
resistance to fuels and fluids

6 Requirements
6.1 General
Connectors shall be so designed and dimensioned that they can withstand the electrical, mechanical,
thermal and corrosive stresses which occur in their intended use and present no danger to the user or the
environment.
The manufacturer and the user shall select the appropriate characteristics related to the application of the
connector: specific attention should be given to those listed in Annex A.
In addition, characteristics which are not covered by the constructional and performance requirements
specified in this Technical Specification but are necessary for the intended use of the connector, shall be
given in the manufacturers specification. These can be additional geometrical, mechanical, electrical and/or
environmental characteristics. Details shall be agreed between manufacturer and user.

– 17 – CLC/TS 50467:2008
Examples for additional characteristics can be found in Annex A.
The manufacturer and user shall select the appropriate characteristics related to the location in the rolling
stock system: specific attention should be given to Annex B.
6.2 Marking and identification
6.2.1 Identification
Connectors shall be identified and characterised by the following markings:
a) manufacturer’s name, trademark or mark of origin;
b) type identification;
c) rated current in A;
d) rated voltages or rated insulation voltages between line to earth and line to line in V;
e) rated impulse voltage in kV, if specified;
f) pollution degree;
g) degree of protection by enclosure according to EN 60529, if applicable;
h) range of temperature;
i) type of terminals;
j) connectable conductors;
k) reference to this specification;
l) traceability.
6.2.2 Marking
The marking shall be indelible and easily legible.
The minimum marking on the connector shall be a) of 6.2.1. Additional information may be agreed between
manufacturer and user.
Markings a) and b) of 6.2.1 shall be found on the smallest unit of packaging.
Traceability shall be agreed between manufacturer and user.
All other markings of 6.2.1 shall be given in the technical documentation or catalogue of the manufacturer.
The positions for the contacts and protective earthing contacts shall be clearly indicated. Marking of the first
contact and first row by a letter, number or another clear symbol is sufficient. This requirement does not
apply to a connector in which contact identification is ensured in the end-use product. Relevant information
shall be given in the technical documentation of the manufacturer.
Marking of protective earthing contacts shall apply the symbol     or PE.
Marking shall not be applied to screws or other removable parts.
Symbols are given in IEC 60417.

6.3 Provision against incorrect mating (non-intermateable)
A multipole connector shall be so designed that contact between protective earthing contacts and live
contacts and the contact between live contacts of different polarity is not possible by engagement.
Compliance is checked by using a polarisation test.
6.4 Protection against electric shock
Subclauses 6.4.1 and 6.4.2 of EN 61984 and the relevant requirements of EN 50153 shall apply.
6.5 Provisions for earthing
Accessible metal parts of a connector with an earthing contact (which may become live in the event of an
insulation fault) shall be reliably connected to the earthing contact.
In no case shall the resistance of this connection exceed 0,1 Ω.
NOTE If accessible metal parts are screened from live parts by metal parts which are connected to an earthi
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