SIST EN 15734-2:2011+A1:2022

SLOVENSKI STANDARD
SIST EN 15734-2:2011+A1:2022
01-februar-2022
Železniške naprave - Zavorni sistemi na vlakih z velikimi hitrostmi - 2. del:
Preskusne metode
Railway applications - Braking systems of high speed trains - Part 2: Test methods
Bahnanwendungen - Bremssysteme für Hochgeschwindigkeitszüge - Teil 2:
Prüfverfahren
Applications ferroviaires - Systèmes de freinage pour trains à grande vitesse - Partie 2 :
Méthodes d'essai
Ta slovenski standard je istoveten z: EN 15734-2:2010+A1:2021
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
SIST EN 15734-2:2011+A1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 15734-2:2011+A1:2022

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SIST EN 15734-2:2011+A1:2022


EN 15734-2:2010+A1
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2021
EUROPÄISCHE NORM
ICS 45.060.01 Supersedes EN 15734-2:2010
English Version

Railway applications - Braking systems of high speed
trains - Part 2: Test methods
Applications ferroviaires - Systèmes de freinage pour Bahnanwendungen - Bremssysteme für
trains à grande vitesse - Partie 2 : Méthodes d'essai Hochgeschwindigkeitszüge - Teil 2: Prüfverfahren
This European Standard was approved by CEN on 23 October 2010 and includes Corrigendum 1 issued by CEN on 5 December
2012 and Amendment 1 approved by CEN on 4 October 2021.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15734-2:2010+A1:2021 E
worldwide for CEN national Members.

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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
Contents Page
Foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Symbols, units and abbreviations . 6
5 Requirements . 7
5.1 General . 7
5.2 Test procedure . 8
5.2.1 General . 8
5.2.2 Identification of the parts to be tested . 8
5.2.3 General conditions for the tests . 8
5.2.4 Specification of the test equipment . 8
5.2.5 Test program . 9
5.2.6 Reports . 9
5.2.7 Documentation . 10
5.3 Methodology . 10
5.3.1 Measurement of the application time at the brake cylinder . 10
5.3.2 Measurement of the release time at the brake cylinder . 10
5.3.3 Measurement of the pressure drop time in the brake pipe or the equalising
reservoir of the driver’s brake valve . 10
5.3.4 Measurement of the pressure rise time in the brake pipe or the equalising reservoir
of the driver brake valve . 10
5.3.5 Measurement of the dead time of the WSP dump valves . 11
5.3.6 Measurement of the exhaust time of the WSP dump valves . 11
5.3.7 Measurement of the fill time of the WSP dump valves . 11
5.3.8 Measurement of air tightness . 11
5.3.9 Measurement of lowering time of the MTB . 11
5.3.10 Measurement of rising time of the MTB . 11
5.3.11 Measurement of application and release times of EP assist brake . 11
5.3.12 Measurement of the contribution of the different brakes . 11
5.3.13 Evaluation of the longitudinal brake force applied to the track by Magnetic Track
Brake or Eddy Current Brake . 12
6 Static tests programme . 13
6.1 Test on vehicle (Level 1) . 13
6.2 Test on Single Unit (Level 2) . 30
6.3 Test on Multiple Unit maximum consist (Level 3) . 39
7 Dynamic tests programme . 44
7.1 General for dynamic tests . 44
7.1.1 Preconditions . 44
7.1.2 Test conditions . 44
7.1.3 Measured variables to be recorded . 45
7.1.4 Verification of deceleration and braking distance. 46
7.1.5 Definition of braked weight . 46
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
7.2 Test program . 47
7.2.1 Test on Single Unit (Level 2) . 47
7.2.2 Test on Multiple Unit maximum consist (Level 3) . 59
Annex A (normative) Typical format for a test report for type or routine test . 65
Annex B (informative) Principle of the automatic function test. 66
B.1 Purpose of the automatic function . 66
B.2 Adjustment of the driver’s brake valve feed choke to comply with the automatic
function . 66
Bibliography . 68

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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
Foreword
This document (EN 15734-2:2010+A1:2021) has been prepared by Technical Committee CEN/TC 256
“Railway applications”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2022, and conflicting national standards shall be
withdrawn at the latest by June 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document includes a Corrigendum, approved by CEN on 2012-12-05.
This document includes Amendment 1, approved by CEN on 2021-10-04.
This document supersedes !EN 15734-2:2010".
The start and finish of text introduced or altered by corrigendum is indicated in the text by tags ˜
™.
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".
!Deleted paragraphs "
EN 15734, Railway applications — Brake systems of high speed trains, consists of the following parts:
— Part 1: Requirements and definitions
— Part 2: Test methods
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
1 Scope
This European Standard specifies test methods and acceptance criteria for a brake system for use in
high speed trains as described in the TSI Rolling Stock, operating on routes of the trans-European high-
speed rail system.
The tests defined in this document have the purpose of verifying that the braking performance and
functions of the train's brake system comply at least with the respective requirements of EN 15734-1.
This European Standard is applicable to:
— new vehicles of high speed trains;
— new constructions of existing vehicle types;
— major overhauls of the above-mentioned vehicles if they involve redesigning or extensive alteration
to the brake system of the vehicle concerned.
The functional testing requirements set out in this document assume the vehicles are fitted with a brake
system architecture that follows the UIC air brake pipe control principles.
High Speed Rolling Stock can be fitted with alternative brake system architectures that do not employ
brake pipe control. In these cases equivalent testing requirements will need to be generated to test the
functional performance of brake system fitted.
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 15220-1, Railway applications — Brake indicators — Part 1: Pneumatic operation brake indicators
EN 15327-1, Railway applications — Passenger alarm subsystem — Part 1: General requirements and
passenger interface for the passenger emergency brake system
EN 15355, Railway applications - Braking - Distributor valves and distributor-isolating devices
EN 15595, Railway applications - Braking - Wheel slide protection
EN 15611, Railway applications - Braking - Relay valves
EN 15663, Railway applications — Definition of vehicle reference masses
EN 15734-1:2010, Railway applications - Braking systems of high speed trains - Part 1: Requirements and
definitions
EN 50125-1, Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and
on-board equipment
EN 50128, Railway applications - Communication, signalling and processing systems - Software for
railway control and protection systems
UIC 544-1:2004, Brakes — Braking power
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
approval body
Notified Body or National Railway Authority that conforms to EN ISO/IEC 17025
3.2
test(ing) institute
test(ing) institute that conforms to EN ISO/IEC 17025
3.3
check
test performed as a discrete measurement or visual inspection
3.4
record
results recorded either graphically or electronically
3.5
type test
test of one or more devices, system or complete vehicle demonstrating that the design meets the
required specifications and the relevant standards
NOTE (Type) tests are performed by a test institute.
3.6
routine test
vehicle test that is performed during or after manufacture to confirm conformity to specified criteria
4 Symbols, units and abbreviations
For the purpose of this document, the following symbols, units and abbreviations apply:
ATC Automatic Train Control
ATP Automatic Train Protection
BC Brake Control
BP Brake Pipe
DP Data Processing
EP Electro Pneumatic Brake
ETCS European Train Control System
R+Mg Brake mode R+Mg
MRP Main Reservoir Pipe
MTB Magnetic Track Brake
R Brake mode R
Sifa Driver’s vigilance control (German: “Sicherheitsfahrschaltung”)
WRMS Wheel Rotation Monitoring System
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
WSP Wheel Slide Protection System
5 2 5 −1
1 bar  = 1 000 mbar = 10 N/m = 10 Pa = 10 MPa
5 Requirements
5.1 General
This document defines the content of the static and dynamic tests dedicated to the brakes, which are
needed for the following phases:
— type tests which demonstrate that the brake system conforms to the requirements. They are done
with a pre-serial unit or with the first unit of a serial production;
— routine tests which confirm the technical stability of the production process of the system and its
subsystems. For this purpose the basic features and functions of the system and its subsystems are
to be checked;
— verification that the braking performance and the functions of the train’s braking system comply at
least with the respective requirements of EN 15734-1;
— identification of data for the verification of the brake performance and the functions of the train's
braking system.
The document also identifies relevant data to be recorded.
The type and routine tests are as follows:
— tests with a single vehicle (Level 1);
— tests with one single unit (Level 2). These tests serve to check the common functions of the unit and
the interfaces between the vehicles;
— tests with multiple units consisting of two to n units (Level 3) up to the maximum configuration.
These tests serve to check the common functions of the train composition and the interfaces
between the units.
Figure 1 gives an example of the three levels.

Key
1 Level 1: vehicle
2 Level 2: single unit
3 Level 3: multiple unit
Figure 1 —Type test and routine test levels
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
5.2 Test procedure
5.2.1 General
The procedures shall include the following items:
— identification of the parts to be tested;
— general conditions for the tests;
— specification of the test equipment;
— test program.
5.2.2 Identification of the parts to be tested
A list of the parts to be tested shall be made, with a description starting from the total system or
subsystem down to the single parts of the brake system. It is recommended to attach pneumatic,
electric or electronic schemes, graphs, etc. The test stand and the procedure shall be documented with
pneumatic, electric or electronic schemes, graphs, etc.
5.2.3 General conditions for the tests
5.2.3.1 Temperature
The tests shall be run at a temperature within the range of the air temperature class in accordance with
EN 50125-1, specified for the tested system.
5.2.3.2 Energy supply
a) Compressed air supply
If the system cannot be supplied with compressed air from its own supply, for instance for the tests
with a single vehicle, an external air supply is to be used with air quality (solid particles, humidity and
liquid water, oil) and characteristics (flow rate, minimum pressure, etc.) that shall be at least equivalent
to the one of the system’s normal air supply.
b) Electric supply
If the vehicle cannot be supplied with electric energy from its own supply, for instance for the tests with
a single vehicle, an external supply is to be used with characteristics that shall be the same as the one of
the normal vehicle’s supply.
5.2.4 Specification of the test equipment
The measuring equipment shall comply with the requested accuracy.
The recording apparatus shall have enough measurement tracks, in order that a record can include all
the needed information for the test. Each measurement track shall be clearly identified.
The records shall include the information listed in 5.2.6 and ˜7.1.3™.
The quality of the records shall enable the copy of them without quality loss. If a digital recording
system is used, an open format shall be used for data files.
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
5.2.5 Test program
The items listed in the following tables describe the minimum to be checked but do not define the
testing procedure.
Additional tests shall be proposed to suit the specific configuration of the brake system architecture
(e.g. automatic air brake, direct electro-pneumatic air brake, etc.) fitted on the rolling stock, or if specific
requirements are mentioned in the functional specification.
This list of tests shall be only considered as a basis for building up the dedicated test procedure for a
given rolling stock.
Each test in the following tables includes a short and basic description of the function to be tested. The
complete and detailed description shall be included into the test procedure to be presented to the
approval body.
The type tests shall include the degraded modes tests, with special attention to the redundant functions.
The tests shall start only if the software of the brake function / brake system has been successfully
validated in advance in accordance with EN 50128.
5.2.6 Reports
The tests shall be presented in a report and transmitted to the approval body that assesses the vehicle.
This report shall at least include:
a) reference of the test (type test or routine test);
b) date and location of the test;
c) identification and type of the tested vehicle;
d) software release number, and associated checksums;
e) description of the measurement tools, and the way they are used;
f) test (program) specification completed with the results and the associated records. Each record
shall include:
1) identification and type of the tested vehicle;
2) name of the test performed and reference paragraph in the test procedure;
3) recording methodology;
4) name and scale for all the recorded parameters;
5) obtained results;
6) date;
7) identification of the different charts;
g) conclusion of the tests in which a table listing all the adjustable parameter settings of the tests
(choke diameters, software configuration, etc.) shall be recorded.
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
The format shall enable an easy access to all the information associated to the tests. An example is
attached in Annex A.
NOTE If, for the routine tests, the vehicle manufacturer would like to use another way for recording the
information (record, check), this will need the approval of the approval body.
5.2.7 Documentation
The parameters as follows shall be recorded irrespective from the type of testing:
— software versions of all brake-relevant components (all software-controlled systems, contributing
directly or indirectly to the braking performance: drive units, anti-skid protection systems, brake
modules, etc.);
— batch numbers of the friction materials (blocks, inserts, pads, etc.) and results of bench tests in dry
and wet conditions;
— brake cylinder pressures in the case of an emergency brake application for at least one motor bogie
and one trailer bogie;
— wheel diameter.
It is assumed that the documentation conforms to the relevant standards and that conformity with
these requirements shall be established before performing the tests.
5.3 Methodology
5.3.1 Measurement of the application time at the brake cylinder
The application time is to be measured from 0 % to 95 % of the maximum stabilized pressure at the
brake cylinder. This is measured at the brake cylinder which is the furthest from of the brake panel
which controls it. It is accepted to add a T-connection for the type test.
5.3.2 Measurement of the release time at the brake cylinder
The release time is to be measured from the maximum stabilized pressure at the brake cylinder down
to 0,4 bar. This is measured at the brake cylinder furthest from the brake panel which controls it. It is
accepted to add a T-connection for the type test. However for the routine tests of the stocks equipped
with variable load relay valves, it is usual to measure at the distributor’s brake cylinder pilot pressure.
In any case, the full release at the brake cylinder shall be verified.
5.3.3 Measurement of the pressure drop time in the brake pipe or the equalising reservoir of the
driver’s brake valve
The pressure drop time is to be measured from 5 bar to 3,5 bar, but the pressure drop to be done is to
be from 5 bar to 3,2 bar.
5.3.4 Measurement of the pressure rise time in the brake pipe or the equalising reservoir of the
driver brake valve
The pressure rise time is to be measured from 3,5 bar to 4,9 bar.
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EN 15734-2:2010+A1:2021 (E)
5.3.5 Measurement of the dead time of the WSP dump valves
The dead time for exhaust and fill is to be measured from the command to fill or release to the start of
the pressure variation at the brake cylinder. This is measured at the brake cylinder which is furthest
away from the dump valve which controls it. It is accepted to add a T-connection for the type test.
5.3.6 Measurement of the exhaust time of the WSP dump valves
The exhaust time is to be measured from the maximum stabilized pressure at the brake cylinder down
to 0,4 bar. This is measured at the brake cylinder of the vehicle which is furthest away from the dump
valve which controls it. It is accepted to add a T-connection for the type test.
5.3.7 Measurement of the fill time of the WSP dump valves
The fill time is to be measured from 0 % to 95 % of the maximum stabilized pressure at the brake
cylinder. This is measured at the brake cylinder of the vehicle which is furthest away from the dump
valve which controls it.
5.3.8 Measurement of air tightness
When carrying out pressure leakage tests, waiting time shall be at least 1 min for pressure stabilization
before starting timing measurements.
5.3.9 Measurement of lowering time of the MTB
The lowering time of the MTB shall be measured between the activation command and the impact of the
magnets on the rail.
5.3.10 Measurement of rising time of the MTB
The rising time of the MTB shall be measured between the deactivation command and reaching their
upper position.
5.3.11 Measurement of application and release times of EP assist brake
The times shall be checked on an individual vehicle with the compressed air brakes applied, with the BP
first being pressurized to 5 bar and then shut off. The times shall be calculated when the electrical
signal is established to the braking or release solenoid valve.
During ep braking, the application time shall be measured decreasing the BP pressure from 5 bar to 3,5
bar. During ep release, the release time shall be measured increasing the BP pressure from 3,5 bar to
4,9 bar with an auxiliary air reservoir pressure of 5,3 bar to 5,5 bar.
5.3.12 Measurement of the contribution of the different brakes
During dynamic tests the contribution of the different brakes installed on the rolling stock shall be
measured as follows:
— for the friction brake by recording the pressure in the brake cylinders;
— for the dynamic brake by recording the brake force information provided by the traction
equipment;
— for the eddy current brake by recording the brake force information provided by the control
equipment;
— for the magnetic track brake by recording their state and using design data.
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
5.3.13 Evaluation of the longitudinal brake force applied to the track by Magnetic Track Brake
or Eddy Current Brake
The longitudinal force shall be evaluated for emergency brake application and if applicable also for full
service brake application from maximum speed under operational mass in working order. If there a
load dependent brake force is applied for the Eddy Current Brake, then the design mass under
exceptional payload shall also be considered.
The longitudinal force for the magnetic track brake shall be calculated from the deceleration which is
raised by the Magnetic track brake. These deceleration shall be calculated as the difference between the
deceleration which is measured for brake applications with and without acting Magnetic Track Brake.
For the Eddy Current Brake the recorded brake force information provided by the control equipment
shall be evaluated.
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SIST EN 15734-2:2011+A1:2022
EN 15734-2:2010+A1:2021 (E)
6 Static tests programme
6.1 Test on vehicle (Level 1)
Table 1 — Test on vehicle (Level 1)
Name of the test Type test Routine Test
 Record Check Record Check
6.1.1 Basic visual inspection
6.1.1.1
✓ ✓
The conformity of the vehicle data shall be checked
concerning
— vehicle type and number;
— vehicle inscriptions.
6.1.1.2
✓ ✓
The conformity of the pneumatic, mechanical, electric and
electronic brake equipment regarding types, quantity and
marking with the documentation shall be checked.
6.1.2 General safety related assessment of the installation
6.1.2.1
✓ ✓
The installation of the brake system parts in the veh
...