EN 16834:2019
(Main)Railway applications - Braking - Brake performance
Railway applications - Braking - Brake performance
This document defines a harmonized way to assess the braking performance by test of locomotives, passenger coaches, freight wagons and self-propelled passenger trains (EMU/DMU).
The document sets out the standardized method for undertaking brake performance tests and the correction factors to be applied to the data obtained for all types of rolling stock.
This document also defines the methods to assess the brake performance in terms of stopping distance, and from this the process to determine vehicle(s) deceleration and braked weight.
It then deals with conversion of the braked weight to the braked weight percentage of a vehicle or train for operating purposes. It also sets out additional factors when determining the braked weight percentage of a train calculated from specified braked weight, depending on the formation of the train.
In Annex D there is a method for determining brake performance of freight wagons fitted with P10 cast iron or LL-blocks using limited testing (force measurement).
Bahnanwendungen - Bremse - Bremsvermögen
Dieses Dokument legt eine harmonisierte Verfahrensweise zur Bewertung des Bremsvermögens durch Prüfung von Lokomotiven, Reisezugwagen, Güterwagen und Elektro- und Dieseltriebwagen und triebzügen fest.
Dieses Dokument legt das Normverfahren für die Durchführung von Prüfungen des Bremsvermögens und die Korrektur¬faktoren dar, die auf die für alle Arten von Schienenfahrzeugen gewonnenen Daten anzuwenden sind.
Dieses Dokument legt auch die Verfahren zur Bewertung des Bremsvermögens in Bezug auf den Anhalteweg und, davon ausgehend, den Prozess zur Bestimmung der Fahrzeugverzögerung und des Bremsgewichts fest.
Es befasst sich mit der Umwandlung des Bremsgewichts eines Fahrzeugs oder Zuges in Bremsgewichtshundertstel für betriebliche Zwecke. Es legt auch die zusätzlichen Faktoren bei der Bestimmung des Bremsgewichtshundertstel eines Zuges fest, das in Abhängigkeit von der Zugbildung aus dem festgelegten Bremsgewicht berechnet wird.
Anhang D enthält ein Verfahren (Kraftmessung) zur Bestimmung des Bremsvermögens von Güterwagen, die mit Bremsklötzen aus Grauguss P10 oder LL-Bremsklötzen ausgestattet sind.
Applications ferroviaires - Freins - Performance de freinage
Le présent document définit une méthode harmonisée pour évaluer la performance de freinage par essai des locomotives, des voitures voyageurs, des wagons et des rames automotrices (électriques et diesel).
Le présent document décrit la méthode normalisée pour réaliser les essais de performance de freinage, ainsi que les facteurs de correction à appliquer aux données obtenues pour tous les types de matériels roulants.
Le présent document définit également les méthodes d'évaluation de la performance de freinage en termes de distance d'arrêt et, à partir de celle-ci, le processus pour déterminer la décélération et la masse freinée du ou des véhicules.
Il traite ensuite de la conversion de la masse freinée en pourcentage de masse freinée d'un véhicule ou d'un train pour l'utilisation en service. Il présente également des facteurs supplémentaires pour la détermination du pourcentage de masse freinée d'un train calculé à partir d'une masse freinée spécifiée, selon la composition du train.
L'Annexe D spécifie une méthode pour déterminer la performance de freinage des wagons équipés de semelles en fonte P10 ou de semelles LL en utilisant des essais limités (mesurage de l'effort).
Železniške naprave - Zavore - Značilnosti zavore
Ta evropski standard določa usklajen način ocenjevanja značilnosti zavor s preskusom lokomotiv, potniških vagonov, tovornih vagonov in potniških vlakov na lastni pogon (EMU/DMU).
Evropski standard določa standardizirano metodo za preskušanje značilnosti zavor in korekcijske faktorje, ki se uporabljajo za podatke, pridobljene za vse tipe tirnih vozil.
Ta evropski standard prav tako opredeljuje metode za ocenjevanje značilnosti zavor v smislu zavorne razdalje in pri tem postopek za določanje pojemanja vozila in zavorne teže.
Vsebuje tudi pretvorbo zavorne mase v odstotek zavorne mase vozila ali vlaka za namene obratovanja. Prav tako določa dodatne faktorje za določanje odstotka zavorne mase vlaka, izračunanega iz specifične zavorne mase v odvisnosti od formacije vlaka.
V dodatku D je na voljo metoda za določanje značilnosti zavor tovornih vagonov, opremljenih z železovo litino P10, z uporabo omejenega preskušanja (merjenje sile).
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2019
Železniške naprave - Zavore - Značilnosti zavore
Railway applications - Braking - Brake performance
Bahnanwendung - Bremse - Bremsleistung
Applications ferroviaires - Freins - Performance de freinage
Ta slovenski standard je istoveten z: EN 16834:2019
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 16834
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2019
EUROPÄISCHE NORM
ICS 45.040
English Version
Railway applications - Braking - Brake performance
Applications ferroviaires - Freins - Performance de Bahnanwendungen - Bremse - Bremsvermögen
freinage
This European Standard was approved by CEN on 12 November 2018.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16834:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Symbols and abbreviations . 8
5 Principles of determining the brake performance . 9
5.1 General . 9
5.2 Brake assessment with braked weights . 10
5.3 Brake assessment with deceleration’s method . 11
6 Execution of tests . 11
6.1 Test methods . 11
6.1.1 General . 11
6.1.2 Freight wagons and coaches. 11
6.1.3 Locomotives . 12
6.1.4 EMU/DMU and high speed trainsets. 12
6.1.5 Testing of vehicles/trains with additional brake equipment . 12
6.2 Load conditions for tests . 12
6.2.1 Freight wagons . 12
6.2.2 Locomotives . 13
6.2.3 Passenger vehicles . 13
6.3 Speeds to be used for testing. 14
6.4 Method of execution of the test . 15
6.4.1 General . 15
6.4.2 Atmospheric conditions . 16
6.4.3 Condition of brake equipment . 16
6.4.4 Number and validity of individual tests . 16
6.5 Test in degraded mode and degraded conditions . 17
6.6 Determination of brake performance for the ETCS system . 17
6.7 Evaluating the test results for stopping distance . 18
6.7.1 Correcting the stopping distances for each test . 18
6.7.2 Determining the mean stopping distance . 19
6.7.3 Correction of the mean stopping distance . 22
6.8 Parking and holding brake testing . 25
7 Assessment for deceleration method . 25
7.1 General . 25
7.2 Physical principles . 25
7.3 Determining the parameters required for brake performance . 26
7.3.1 General . 26
7.3.2 Method for determining decelerations . 27
7.4 Assessment of performance under degraded conditions . 30
7.4.1 Coefficient of friction reduced due to moisture . 30
7.4.2 Effect of reduced adhesion . 30
7.4.3 Determining degraded deceleration . 31
8 Assessment of the braked weight . 31
8.1 General . 31
8.1.1 Determining braked weight percentage . 31
8.1.2 Determining braked weight . 32
8.2 Coaches and EMU/DMU's . 33
8.3 Additional assessment for Coaches operating with a speed above 160 km/h from
vehicles test . 33
8.4 Freight wagons in P . 34
8.5 Freight wagons in G . 34
8.6 Locomotives . 34
8.7 Magnetic track brake and eddy current brake . 35
8.7.1 General . 35
8.7.2 Assessment using train test . 35
8.7.3 Assessment using single vehicle test . 35
8.8 ep brake (ep-direct and ep-assist) . 35
8.9 Brake pipe accelerators valves . 35
9 Recommendations for the use of braked weight percentage in operation . 36
9.1 General . 36
9.2 Principles of use for trains operating in P mode . 36
9.3 Adjustment for trains comprising a locomotive and coaches . 37
9.3.1 Variation in braked weight taking into account the length of the train . 37
9.3.2 Braked weight of trains fitted with brake accelerators . 37
9.3.3 Rules of use for train operation: Braked weight of trains fitted with ep assist . 38
9.3.4 Variation in braked weight taking into account supplementary dynamic brake . 38
9.4 Adjustments for Freight trains braked in the P mode . 38
9.4.1 Variation in braked weight taking into account the length of the train . 38
9.4.2 Reduction in the braked weight of a G-braked vehicle in a P-braked train . 39
9.4.3 Variation in braked weight taking into account Brake accelerators and ep assist . 39
9.5 Principles of use for trains operating in G mode . 39
9.5.1 General . 39
9.5.2 Freight trains . 39
10 Operation with the ETCS system . 40
11 Assessment of maximum utilization of adhesion. 40
12 Assessment of gradient capability of parking/holding brake . 41
Annex A (normative) Brake assessment for trains . 42
A.1 Assessment sheet for trains using brake positions P, R, R+Mg . 42
A.2 Overview of the mathematical formulae for the assessment curves for trains using
brake positions P, R, R+Mg . 44
Annex B (normative) Brake assessment for single vehicles . 45
B.1 Assessment sheet for single vehicles . 45
B.2 Overview of the mathematical formulae for the assessment curves for single vehicles . 47
Annex C (normative) Checking of the friction pairing of disc-braked single vehicles . 48
C.1 D
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