SIST EN 50702:2021
(Main)Railway applications - Rolling stock - Third rail current collectors (shoegear): Characteristics and tests
Railway applications - Rolling stock - Third rail current collectors (shoegear): Characteristics and tests
This document specifies the tests for the current collectors to enable current collection from the third or fourth rail system as well as associated fuses and short circuit devices. It also specifies the general assembly characteristics to be applied to current collectors. This document is applicable to all types of vehicles with third or fourth rail current collectors. This document does not apply to roof mounted pantographs.
Bahnanwendungen – Fahrzeuge – Stromabnehmer für Stromschienen (Schleifschuhträger): Merkmale und Prüfungen
Applications ferroviaires - Matériel roulant - Appareil de prise de courant sur le rail de contact (capteur de courant) : Caractéristiques et essais
Le présent document spécifie les essais concernant les appareils de prise de courant pour le troisième ou quatrième rail, ainsi que les fusibles et les dispositifs de court-circuit associés. Il spécifie également les caractéristiques générales d'assemblage applicables aux appareils de prise de courant. Le présent document s'applique à tous les types de véhicules équipés d'appareils de prise de courant pour le troisième ou quatrième rail. Il ne s'applique pas aux pantographes montés sur le toit.
Železniške naprave - Vozna sredstva - Tokovni odjemniki s tretje tirnice (čevlji) - Karakteristike in preskusi
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2021
Železniške naprave - Vozna sredstva - Tokovni odjemniki s tretje tirnice (čevlji) -
Karakteristike in preskusi
Railway applications - Rolling stock - Third rail current collectors (shoegear):
Characteristics and tests
Ta slovenski standard je istoveten z: EN 50702:2021
ICS:
45.060.10 Vlečna vozila Tractive stock
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50702
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2021
ICS 45.060.10
English Version
Railway applications - Rolling stock - Conductor rail current
collectors (shoegear): Characteristics and tests
Applications ferroviaires - Matériel roulant - Appareil de Bahnanwendungen - Fahrzeuge - Stromabnehmer für
prise de courant sur le rail de contact (capteur de courant) : Stromschienen (Schleifschuhträger): Merkmale und
Caractéristiques et essais Prüfungen
This European Standard was approved by CENELEC on 2021-04-12. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50702:2021 E
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Abbreviations . 9
5 Technical requirements . 9
5.1 General . 9
5.2 Gauge . 9
5.3 Working range of the current collector . 9
5.4 Electrical values . 9
5.5 Force requirements . 9
5.6 Collector shoe . 9
5.7 Operating system .10
5.8 Weak link .10
5.9 Current collector mass and force in the bogie .10
5.10 Protection against corrosion .10
6 Marking .10
7 Tests .10
7.1 Categories of tests .10
7.1.1 Overview .10
7.1.2 Type tests .11
7.1.3 Routine tests .11
7.1.4 Investigation tests .11
7.1.5 Combined tests .11
7.2 General tests .11
7.2.1 Visual inspection (routine test) .11
7.2.2 Weight measurement (type test) .11
7.2.3 Dimensions (type test) .12
7.2.4 Identification (routine test) .12
7.2.5 Test weak link (type test) .12
7.3 Operating tests .14
7.3.1 Measurement of static force at ambient temperature (routine test) .14
7.3.2 Checking of the operating system of the current collector (if applicable) .15
7.3.3 Operating climatic test .15
7.3.4 Combined operating climatic test at vehicle .15
7.4 Endurance tests .15
7.4.1 Operation between retracted position and working position .15
7.4.2 Operation within working range .15
7.4.3 Resistance to vibrations .16
7.5 Resistance to shocks caused by collector shoe frequently approaching current rail
ramps .16
7.6 Air tightness tests .16
7.6.1 General .16
7.6.2 Air tightness tests on operating device cylinder .16
7.6.3 Tightness climatic test .17
7.6.4 Tightness test of short circuiter cylinders .17
7.7 Current collection tests (combined test, informative) .17
7.7.1 General .17
7.7.2 Measurement of surrounding conditions . 18
7.7.3 Pre-conditions for test runs . 18
7.7.4 Measurement of electric energy transmission . 19
7.8 Heating tests . 19
7.8.1 Objective . 19
7.8.2 Heating tests: rated and maximum current, vehicle at standstill (supplementary type
test) . 19
7.8.3 Heating tests: rated and maximum current, vehicle with traction (mandatory type test) . 20
7.8.4 Short Circuit Test for maximum short circuit current and duration (mandatory type test) 21
7.8.5 Field Test (supplementary type test) . 22
7.9 Dielectric test . 22
7.9.1 General . 22
7.9.2 Objective . 22
7.9.3 Insulation impedance test . 23
7.9.4 Voltage withstand test . 23
7.9.5 Clearance and creepage tests . 24
7.10 Sealing Test . 25
7.10.1 General . 25
7.10.2 Objective . 25
7.10.3 Type tests (mandatory) . 26
7.10.4 Routine tests (voluntary test) . 26
Annex A (normative) List of tests . 27
Bibliography . 29
European foreword
This document (EN 50702:2021) has been prepared by CLC/SC 9XB, “Electrical, electronic and
electromechanical material on board rolling stock, including associated software”.
The following dates are fixed:
— latest date by which this document has to be (dop) 2022-04-12
implemented at national level by publication of an
identical national standard or by endorsement
— latest date by which the national standards (dow) 2024-04-12
conflicting with this document have to be
withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and the
European Free Trade Association.
Introduction
This document corresponds to the aim of the EN 50206 series.
The electrical power of a transmission unit is achieved by collecting current from a conductor rail by means of
one or more current collector(s), which is/are installed on the traction unit or on a vehicle of the trainset.
The collector shoes of the current collector which slide along the conductor rail facilitate the transmission of
electric power.
The current collector and the conductor rail form two oscillating sub-systems which can be displaced. There is
a unilateral sliding linkage between them, which ensures continuous contact. Their design should allow for
minimum wear of both sub-systems when in operation.
1 Scope
This document specifies the tests for the current collectors to enable current collection from the third or fourth
rail system as well as associated fuses and short circuit devices. It also specifies the general assembly
characteristics to be applied to current collectors. This document is applicable to all types of vehicles with third
or fourth rail current collectors. This document does not apply to roof mounted pantographs.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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 50123-1:2003, Railway applications - Fixed installations - D.C. switchgear - Part 1: General
EN 50124-1:2017, Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and
creepage distances for all electrical and electronic equipment
EN 50125-1:2014, Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and
on-board equipment
EN 50125-2:2002, Railway applications - Environmental conditions for equipment - Part 2: Fixed electrical
installations
EN 50125-3:2003, Railway applications - Environmental conditions for equipment - Part 3: Equipment for
signalling and telecommunications
EN 50163:2004, Railway applications - Supply voltages of traction systems
EN 50215:2009, Railway applications - Rolling stock - Testing of rolling stock on completion of construction and
before entry into service
EN 60112:2003, Method for the determination of the proof and the comparative tracking indices of solid
insulating materials (IEC 60112:2003)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 60587:2007, Electrical insulating materials used under severe ambient conditions - Test methods for
evaluating resistance to tracking and erosion (IEC 60587:2007)
EN 61373:2010, Railway applications - Rolling stock equipment - Shock and vibration tests (IEC 61373:2010)
As impacted by EN 60112:2003/A1:2009.
As impacted by EN 60529:1991/A2:2013 and EN 60529:1991/COR1:2019.
As impacted by EN 61373:2010/AC:2017-09.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
current collector
equipment fitted to a vehicle and intended to collect current from a conductor rail
Note 1 to entry: Current collectors for conductor rail are also commonly known as shoegear.
[SOURCE: IEC 60050-811:2017, 811-32-01, modified — The term “contact wire or” has been omitted; Note 1
to entry has been added.]
3.2
collector shoe
part of the current collector making contact with the conductor rail
[SOURCE: IEC 60050-811:2017, 811-32-20, modified — The term “shoe gear” was replaced by “current
collector”.]
3.3
type test
conformity test made on one or more items representative of the production
[SOURCE: IEC 60050-151:2001, 151-16-16]
3.4
routine test
conformity test made on each individual item during or after manufacture
[SOURCE: IEC 60050-151:2001, 151-16-17]
3.5
gauge
cross-sectional dimensions defining the maximum permitted dimensions of vehicles or the minimum dimensions
of fixed structures
[SOURCE: IEC 60050-811:2017, 811-09-01, modified – The note 1 to entry has been omitted]
3.6
weak link
area of the collector shoe holder or collector shoe which is bound to break as a result of an impact with a foreign
body
Note 1 to entry: The weak link, as a frangible section, is calibrated to break when the energy to be absorbed in the
equipment exceeds the limit at which the frangible section is bound to be compromised.
3.7
retraction
function aimed to remove the collector shoe from the conductor rail, where the mechanism is positioned such
as to make sure no current will draw through the current collector and the whole circuitry is fully insulated from
the conductor rail
3.8
on rail position
running position of the collector shoe at which it touches the conductor rail and at which it is able to draw the
electrical power dependent upon the track load conditions
3.9
retracted position
position where the collector shoe is retracted from the conductor rail by the means of a mechanism (pneumatic
or manual) system
3.10
contact force
force applied by the collector shoe on the conductor rail when the collector shoe is in the on rail
position
3.11
rated voltage
voltage value assigned by a manufacturer or other entity for a specified operating
condition of a component, device or equipment
[SOURCE: IEC 60050-614:2016, 614-03-09, modified — The notes 1, 2 and 3 to entry have been omitted.]
3.12
rated current at standstill
average value of the current withstand for a given time by the current collector at standstill
3.13
maximum current at standstill
maximum value of the current withstand by the current collector at standstill for a given time
3.14
rated current at running
continuous current transfer capacity of the current collector
3.15
short circuit current
maximum current that the current collector is expected to withstand under abnormal conditions, when there is
a fault and the protection system has been operated to protect against fault
Note 1 to entry: Typical fault clearance times varying from a few tens of milliseconds through to half a second dependent
upon the protection operation.
3.16
conductor rail
rigid metallic conductor mounted on insulators intended to interface with a vehicle mounted current collector
and placed alongside (third rail) or between the rails (fourth rail) of a railway track
Note 1 to entry: It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully
or almost fully segregated from the outside environment. Conductor rail systems are always supplied from direct current
electricity.
[SOURCE: IEC 60050-811:2017, 811-34-01, modified — “placed alongside (third rail) or between the rails
(fourth rail) of a railway track” has been added. Note 1 to entry has been changed. The Note 2 to entry has been
omitted.]
3.17
load case
case according to which the load of a vehicle is defined
Note 1 to entry: The different cases are the following:
— AW0: weight of empty, ready-to-run vehicle,
— AW1: AW0 plus full seated load, including crew,
— AW2: AW1 plus standees at 4 passengers per m2,
— AW3: AW1 plus standees at 6 passengers per m2,
— AW4: AW1 plus standees at 8 passengers per m2.
Note 2 to entry: A weight of 75 kg per passenger is assumed.
4 Abbreviations
AC: Alternative Current
DC: Direct Current
GPS: Global Positioning System
IP: International Protection
UV: Ultra-Violet
5 Technical requirements
5.1 General
All general characteristics are given in the customer specifications. Unless otherwise specified, environmental
conditions are defined in EN 50125-1:2014. The category of environment shall be specified by the customer.
5.2 Gauge
The current collector in all positions shall be inside the specified gauge which is provided by the customer.
5.3 Working range of the current collector
The customer specification shall state the values for the working range (distance and angle).
5.4 Electrical values
The supply voltages of traction systems are specified in EN 50163:2004. The customer specifications shall also
state the duration and values of the exceptional voltages for the current collector operation. Values defined in
EN 50163:2004, 3.14 to 3.18 shall be given in the customer specifications.
5.5 Force requirements
Static contact forces measured during raising and lowering of the collector shoe shall lie within the boundaries
defined in the customer specification.
5.6 Collector shoe
The customer specification shall state the material of the collector shoe. Requirements for special collector shoe
shapes shall be specified by the customer.
5.7 Operating system
The operating system shall be specified by the customer (pneumatic, hydraulic, electric and/or mechanical
actuated). The operation system shall be designed such that the collector shoe can be disconnected from the
conductor rail within 2 s for preventing electrical flashes.
5.8 Weak link
If required in the customer specification, a weak link shall allow a rupture of the collector shoe holder or collector
shoe in the event of a collision.
5.9 Current collector mass and force in the bogie
The supplier shall specify the mass of the current collector and the maximum force at every fixing point.
Additionally, the supplier shall specify all relevant parameters to enable the calculation of the maximum efforts
at every fixing point.
5.10 Protection against corrosion
The requirements for the corrosion protection application and the type of corrosion protection shall be given in
the customer specification.
6 Marking
As a minimum, the following shall be labelled on the current collector:
a) manufacturer's name
b) article number
c) serial number
d) revision or modification level
If requested by the customer:
1) Nominal Voltage
2) type of current collector
3) weight of current collector
4) nominal current
Taking into consideration operation in a railway environment, the name plate shall be readable after cleaning
and in built-in condition
7 Tests
7.1 Categories of tests
7.1.1 Overview
There are four categories of tests:
a) type tests
b) routine tests
c) investigation tests
d) combined tests
The tests, mentioned above, are described in 7.1.2 to 7.1.5. See also Annex A.
7.1.2 Type tests
Type tests shall be performed on a single piece of apparatus of a given design. Equipment in current
manufacture shall be considered to have satisfied the type tests and shall be exempted from them, if the
manufacturer provides signed reports of type tests already made on identical or derived apparatus constructed
previously. A derived product might have different interfaces to the vehicle, but the main dimensions and
functions shall be the same. For derived products, a declaration of conformity is mandatory. Supplementary
type tests shall be required if they are requested in the customer specification.
7.1.3 Routine tests
Routine tests shall be carried out to verify that the properties of a product correspond to those measured during
the type test. Routine tests shall be performed by the supplier on each equipment. For certain equipment, after
agreement between customer and supplier, routine tests may be replaced by sampling tests: sampling rate shall
be agreed between supplier and customer.
7.1.4 Investigation tests
Investigation tests are special tests, which are supplementary, and performed on a single item to obtain
additional information. They are required only if they are specified in the customer specification. The acceptance
of the apparatus shall not rely on the results of these investigation tests.
7.1.5 Combined tests
Combined tests are special and supplementary tests which can only be carried out in an operating environment.
They shall take into account the type of vehicle to be used, its speed and direction of travel. They shall be
carried out using the track and/or defined in the customer specification. These tests apply to both basic and
derived current collector models. Combined tests shall be subject to negotiation between supplier and customer.
7.2 General tests
7.2.1 Visual inspection (routine test)
This task is performed on a fully assembled series production product. To facilitate the inspection, the product
can be mounted representatively.
Test acceptance criteria:
a) All bolting hardware shall be marked with a special paint. The whole joint shall be covered with a continuous
line. In case of missing paint, the product shall be checked with an appropriate torque wrench set to 80 %
of the supposed applied torque for the bolt.
b) Use care with small parts especially small washers and bolts that could be hidden by other parts.
c) The current collector shall include all electrical and mechanical components. It shall be free from physical
defects and surface treated (see 5.10).
d) No scratch or trace on painting areas shall be noticed.
e) Use care when handling the product at this stage.
f) Check all labels required per the customer specification. It includes hazard labels.
7.2.2 Weight measurement (type test)
The current collector shall be completely assembled. The product is then put on a scale of the appropriate
accuracy. One % (range: 100 kg or more)
Test acceptance criteria:
a) The measured mass shall be within the tolerance of the contractual mass stated on the main assembly
drawing.
b) The mass of the current collector shall comply with the contractual mass as specified in 5.9.
7.2.3 Dimensions (type test)
The dimensions of current collector (including tolerances), as specified on the drawings, shall be verified with
an appropriate measurement apparatus.
As a minimum, the following measurements shall be carried out:
a) Measurement of bolting points layout
b) measurement of outline dimensions of the product
The pneumatic interface shall be compliant with the bogie in case of a pneumatic supply of retraction
mechanism.
A special jig shall be designed which will meet the bogie interface whilst the current collector is checked out.
The pneumatic hoses route shall be smooth without excess bending while they are connected to the interface.
Test acceptance criteria:
The dimensions shall be within tolerances specified on the drawings.
7.2.4 Identification (routine test)
Test acceptance criteria:
a) All marking labels or firm labels shall be checked and compared to the manufacturing order to make sure
of a right identification.
b) Check all labels required (hazard labels, etc.).
c) The marking shall comply with the requirements described in Clause 6.
7.2.5 Test weak link (type test)
7.2.5.1 General
When the current collector features an arm with a weak link designed to break if an obstacle is encountered,
the following two tests shall be conducted successfully if required by the customer.
7.2.5.2 Stage 1
Static test on a whole current collector specimen, a minimum static force on which the mechanism won’t break
or bend is applied in two directions successively.
(1) The specimen is securely fastened onto a jig. Then a force Fx is slowly applied on the collector shoe in the
running direction of the train. This load is applied for one minute without any damage to the current collector.
Once done, the force is released.
Test acceptance criteria:
a) No breakage of any part allowed, only slight bending.
(2) A new specimen is securely fastened onto a jig. Then a force Fz (in the downward direction) is slowly
applied on the shoe. This load is applied for one minute without any damage on the CCD.
Once done, the force is released.
Test acceptance criteria:
b) No breakage of any part allowed, only slight bending.
Recommendation: In absence of specified values the following forces shall be applied.
Fx ≥ 5 000 N; Fz ≥ 500 N
7.2.5.3 Stage 2
Dynamic test on a complete current collector, recommended way (see Figure 1): shock of a falling hammer
mounted on a pendulum (as alternative the current collector might be mounted on a pendulum)
This hammer will have the following characteristics. The minimum impact energy to cause the weak link to break
shall be specified. It will give an energy due to the free fall of a mass which is made of a mass M (the material
shall be steel). The device is securely fastened, and then the hammer mounted on the pendulum is dropped to
hit the shoe.
E= M×gh×
where
E is energy in Newton metres (Nm/ J/ Ws)
M is mass in kg
g is the absolute term of acceleration of gravity, 9,81 m/s
h is height in m (Height of fall)
Figure 1 — Weak link impact test
A complete current collector coming from mass production is then mounted on a test bench similar to the way
it is mounted on the bogie.
The current collector is subjected to a hard shock by the hammer in running direction of the train at the very end
of the collector shoe arm.
The speed reached by the hammer just before hitting the specimen is calculated as below:
All potential energy is converted to kinetic energy:
=> v 2×gh×
M×gh×= ×M×v
where
M is mass in kg
g is the absolute term of acceleration of gravity, 9,81 m/s
h is high in m
v is speed in m/s
Test acceptance criteria:
a) With such settings, the arm of the specimen shall break whereas other structural parts of the current
collector shall not be damaged. However, minor repairs are allowed to replace some damaged hardware.
b) The weak link section is then considered valid as long as the same specimen (same mass production
specimen) passes static test described in stage #1.
These two stages are repeated until having both stages OK passed.
Recommendation: In absence of specified values the following forces shall be applied in this test:
E = 650 J ± 50 J (to be discussed); Impact speed: v = 20,5 km/h = 5,7 m/s
Which gives a test mass of the hammer: approximately 40 kg (mass of structural parts of pendulum neglected)
To get a dropping height that begins in a horizontal position, the arm of the pendulum shall have a length of
approximately 1,75 m.
After the test, the shoe arm shall be totally separated from the rest of the current collector and it shall not hang
on its power cable.
Infringement of the gauge shall be considered.
These requirements apply to most designs except for light metros that run on over street concrete beam. Care
has to be taken that nothing can fall on pedestrians, who walk in streets under the light metro.
7.3 Operating tests
7.3.1 Measurement of static force at ambient temperature (routine test)
The measuring device shall be so installed that the force application is vertical at the middle of the collector
shoe.
Test acceptance criteria:
a) The measured forces shall comply with 5.9.
=
7.3.2 Checking of the operating system of the current collector (if applicable)
The current collector shall be coupled to the whole operating system. The test shall be carried out at ambient
temperature and at rated air supply pressure or rated voltage in the case of electrical operating system.
Test acceptance criteria:
a) The movement from the retracted position to the upper stop shall be achieved in a time of less than 2 s
from the moment the current collector starts to move.
b) The movement from the upper stop to the retracted position shall be achieved in a time of less than 2 s
from the moment the current collector starts to move.
7.3.3 Operating climatic test
The tests as described in 7.3.2 shall be carried out at the extremes of temperature and humidity specified in the
customer specification. If the values are not specified, the tests shall be carried out at −25 °C and +40 °C,
ambient humidity (if not otherwise specified by the customer). The above tests, at the extremes of temperature
shall also be carried out at the minimum and maximum values of air pressure or voltage specified in the
customer specification.
Test acceptance criteria:
a) During and after the tests, the current collector shall operate satisfactorily in accordance with the
acceptance criteria given in 7.3.2.
7.3.4 Combined operating climatic test at vehicle
The tests as described in 7.3.3 shall be carried out at a current collector mounted to a vehicle while tested in a
climate chamber. The vehicle manufacturer is responsible for the test, the current collector supplier shall
support.
Test acceptance criteria:
a) During and after the tests, the current collector shall operate satisfactorily in accordance with the
acceptance criteria given in 7.3.2.
7.4 Endurance tests
7.4.1 Operation between retracted position and working position
The current collector is fitted with the collector shoe with the largest mass for which it is designed and is
submitted to 10 000 consecutive raising and lowering operations from the working position to the retracted
position (if a locking device has been fitted for the retracted position, it shall be disconnected).
Test acceptance criteria:
a) There shall be no abnormal wear. The current collector shall meet the requirements of 7.3.1 and 7.3.2.
b) There shall be no distortions or fractures.
7.4.2 Operation within working range
The current collector with a collector shoe in the same conditions as described in 7.4.1 shall be submitted to
5 000 000 cycles raising and lowering consecutive operations within the working range. The working range is
from the normal position (off rail) to the maximum working position (on rail). The maximum working position
shall include the dynamic movement of the bogie if applicable, and the tolerance of the position of the conductor
rail. The test shall be carried out at a minimum frequency of 1 Hz. The test does not serve as a wear test for the
collector shoe.
Test acceptance criteria:
a) There shall be no abnormal wear. The current collector shall meet the requirements of 7.3.1 and 7.3.2.
b) There shall be no distortions or fractures.
7.4.3 Resistance to vibrations
The current collector shall be capable of withstanding the vibration and shock given by the test requirements of
EN 61373:2010.
7.5 Resistance to shocks caused by collector shoe frequently approaching current rail
ramps
The current collector shall be able to withstand the shocks from a low cycle fatigue the collector shoe generates
because it frequently approaches the current rail ramps. An evaluation and test shall be agreed between the
customer and supplier depending on infrastructure and current collector design.
Test acceptance criteria:
a) There shall be no abnormal wear. The current collector shall meet the requirements of 7.3.1 and 7.3.2.
b) There shall be no distortions or fractures.
7.6 Air tightness tests
7.6.1 General
The following applies if the operating system is of the pneumatic type.
7.6.2 Air tightness tests on operating device cylinder
The test, which shall be carried out at ambient temperature, checks the sealing of the operating device's cylinder
or bellow and the whole pneumatic circuitry of the device.
The cylinder with its air hoses is connected to a pneumatic supply set to the max vehicle pressure (Y MPa).
This value Y is issued from customer specification.
Figure 2 — Air tightness test set up
The valve V is closed to isolate the cylinder and the tank (see Figure 2). The whole system remains unchanged
for X seconds. This duration X is issued from customer specification.
Volume shall not be artificially extended.
Time indication: Testing shall not last longer than about 20 s as it is a routine test.
Test acceptance criteria:
a) P2 (MPa) is surveyed and shall not drop below 5 % of the starting pressure P1 (MPa).
This test is part of the routine test.
7.6.3 Tightness climatic test
This test will be included in qualification tests only. A similar set up, as described in 7.6.2, shall be used in this
test. The test shall be carried out at the maximum and minimum temperatures specified in the customer
specifications. If temperatures are not specified, the test shall be carried out at −25 °C and at +40 °C.
Test acceptance criteria:
a) P2 is surveyed and shall not drop below 5 % of the starting pressure P1.
7.6.4 Tightness test of short circuiter cylinders
Similar tests shall be completed on short circuiter air cylinders. The schematic layout of the test is the same
(see Figure 3). Simple acting cylinders may be encountered on these devices.
Figure 3 — Schematic short circuiter cylinder
Test acceptance criteria:
a) P2 (MPa) is surveyed and shall not drop below 5 % of the starting pressure P1 (MPa).
If the current collector only consists of parts that have already been tested according to their respective
standards and if the manufacturer has not modified the current collector, these parts need not to be tested
again.
7.7 Current collection tests (combined test, informative)
7.7.1 General
Combined tests are part of the vehicle test series.
For the dynamic interaction of the vehicle mounted current collectors and the conductor rail system, it shall be
evaluated that the current transmission by mechanical contact is maintained without interruptions affecting the
functionality under all network and running conditions.
The following measurement method is allowed:
a) Measurement of electric energy transmission by measuring electric current
Continuous measurement of surrounding conditions and video recording are obligatory.
7.7.2 Measurement of surrounding conditions
a) Geographic position, e.g. by GPS;
b) Measurement of running distance (uncertainty ± 1 %)
c) Measurement of running speed (uncertainty ± 1 %)
d) Measurement of line voltage (uncertainty ± 0,5 %)
e) Video transmission into the vehicle/measuring compartment and video recording;
f) Temperature, relative humidity (uncertainty ± 2 %);
g) Position of current collector; (working position/ position of rest);
h) Accelerations of bogie frame next to the current collector (only for investigation).
Geographical position and running distance are linked to calculate the exact position in line kilometrage
(accuracy in meters).
Video recording and recording of the measuring data shall be synchronized and linked to the line position.
7.7.3 Pre-conditions for test runs
7.7.3.1 General
A differentiation of the conductor rail arrangement is necessary for each side of the track:
a) conductor rail in dedicated position
b) gap of conductor rail / conductor rail on the opposite side due to infrastructural constraints
c) ramp section surrounding the rail gap or special arrangements of the conductor rail such as conducting
rails, etc.
A reference track may be agreed between operator, manufacturer and assessor, if all arrangements of
conductor rail as mentioned above are included in the reference track. Otherwise tests in the whole network of
the operator are necessary. An initial test run with low speed (10 km/h to 20 km/h recommended) after
commissioning is a precondition to identify and locate potential non-gauge conformities and areas of conductor
rail gaps and ramps or special arrangements of the conductor rail.
7.7.3.2 State of the vehicle
As far as concerning the current collection, the vehicle shall be in the technical state of approval. All current
collectors shall be mounted. Circuit design may be modified where necessary to meet the requirements for the
measurements. At each side of the train the current collectors shall be disconnected from each other to avoid
circular currents. One current collector at each side of the train is sufficient to prove the functionality. All
combined static tests for the current collectors and the circuit breaker and their activation/de-activation shall be
passed successfully.
7.7.4 Measurement of electric energy transmission
7.7.4.1 Adjustments before the tests
The static contact force is adjusted as given by the infrastructure regulations for the regular working position
and measured at each collector before and after the line tests. Tolerances shall be defined in customer
specification.
The electric current is measured for each current collector. During the test run, an energy consumption for
traction and auxiliaries or an inversed feeding by braking energy should be maintained to generate a current
flow between conductor rail and vehicle or inversed. The final running speed shall be not less than the allowed
speed of the line section or – if lower – the permitted speed for the vehicle.
The measuring campaign should start with a low speed (e.g. half of permitted speed) to identify nonconformities.
Speed should be increased up to maximum train speed in steps not greater than 40 km/h. Test runs with
maximum speed shall be repeated if necessary. Activation and de-activation of the current collectors shall be
tested at different speed including maximum speed if requested by the customer.
Test acceptance criteria:
a) In the areas of a continuous conductor rail the absolute value of the electric current shall be higher than
zero (uncertainty ± 0,5 %, sampling rate ± 20 Hz).
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