SIST EN 16452:2015+A1:2019
(Main)Railway applications - Braking - Brake blocks
Railway applications - Braking - Brake blocks
This European Standard gives the requirements for the design, dimensions, performance, and testing of a brake block (otherwise known as brake shoe insert) that acts on the wheel tread as part of a tread brake system. This European Standard does not cover cast iron brake block requirements.
This European Standard is applicable to brake blocks of either "K", "L", or "LL" friction level designed to be fitted to tread braked rail vehicles.
This European Standard contains the requirements for interfacing the brake block with the rail vehicle, the testing procedures in order to confirm that it satisfies the basic safety and technical interchangeability requirements, the material control procedures to ensure product quality, reliability and conformity and considers health and environmental needs.
Bahnanwendungen - Bremse - Bremsklotzsohlen
Diese Europäische Norm enthält Anforderungen an Auslegung, Abmessungen, Leistung und Prüfung eines Bremsklotzes (auch bekannt als „Bremsklotzsohle“), die auf die Lauffläche als Teil eines Klotzbremssystems wirkt. Diese Norm behandelt keine Anforderungen an Bremsklötze aus Gusseisen.
Diese Europäische Norm ist für Bremsklötze der Reibungsklassen „K“, „L“, oder „LL“ anwendbar, die für den Einbau in Schienenfahrzeuge mit Klotzbremse ausgelegt sind.
Diese Norm enthält die Anforderungen für die Schnittstelle zwischen Bremsklotz und Schienenfahrzeug, die Prüfverfahren zur Bestätigung, dass die grundlegenden Sicherheitsanforderungen und technischen Anfor¬derungen der Austauschbarkeit erfüllt werden, Kontrollverfahren für Werkstoffe zur Sicherstellung der Pro¬duktqualität, Funktionssicherheit und Konformität und berücksichtigt gesundheits- und umweltrelevante Bedürfnisse.
Applications ferroviaires - Freinage - Semelles de frein
La présente Norme européenne spécifie les exigences relatives à la conception, aux dimensions, aux performances et aux essais d’une semelle de frein (également appelée « semelle de freinage ») qui agit sur la table de roulement de la roue dans le cadre d’un système de frein sur roue. La présente Norme européenne ne traite pas des exigences relatives aux semelles de frein en fonte.
La présente Norme européenne s’applique aux semelles de frein à coefficient de frottement de niveau « K », « L » ou « LL » conçues pour être montées sur des véhicules ferroviaires à freins sur roue.
La présente Norme européenne spécifie les exigences relatives à l’interface de la semelle de frein avec le véhicule ferroviaire, les modes opératoires d’essai pour confirmer la satisfaction des exigences de base en matière de sécurité et d’interchangeabilité technique, les modes opératoires de contrôle des matériaux pour s’assurer de la qualité, de la fiabilité et de la conformité des produits, et tient compte des besoins en matière de santé et d'environnement.
Železniške naprave - Zavore - Zavorne ploščice
Ta evropski standard podaja zahteve za zasnovo, mere, zmogljivost in preskušanje zavornih ploščic (imenovanih tudi vložek zavorne čeljusti), ki deluje na tekalni profil kot del zavornega sistema s tekalnim profilom. Ta evropski standard ne zajema zahtev za zavorne ploščice iz litega železa.
Ta evropski standard se uporablja za zavorne ploščice s stopnjo trenja »K«, »L« ali »LL«, ki so zasnovane za namestitev na železniška vozila z zavornim sistemom s tekalnim profilom.
Ta evropski standard vsebuje zahteve za stik zavorne ploščice z železniškim vozilom, preskusne postopke za potrditev izpolnjevanja osnovnih zahtev glede varnosti in tehnične zamenljivosti, postopke nadzora materiala za zagotavljanje kakovosti, zanesljivosti in skladnosti izdelkov ter upošteva zdravstvene in okoljske zahteve.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bahnanwendungen - Bremse - BremsklotzsohlenApplications ferroviaires - Freinage - Semelles de freinRailway applications - Braking - Brake blocks45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineeringICS:Ta slovenski standard je istoveten z:EN 16452:2015+A1:2019SIST EN 16452:2015+A1:2019en,fr,de01-maj-2019SIST EN 16452:2015+A1:2019SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16452:2015+A1
March
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v wä r x rä r s Supersedes EN
s x v w tã t r s wEnglish Version
Railway applications æ Braking æ Brake blocks Applications ferroviaires æ Freinage æ Semelles de frein Bahnanwendungen æ Bremse æ Bremsklotzsohlen This European Standard was approved by CEN on
t z February
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s approved by CEN on
t s December
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egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x v w tã t r s w ªA sã t r s { ESIST EN 16452:2015+A1:2019
Summary of Dynamometer test programs and acceptance criteria . 30 Annex B (normative)
General requirements for conducting dynamometer test programmes . 32 B.1 General . 32 B.2 Rotation and ventilation conditions . 32 B.3 Brake application timing ts . 32 B.4 Bedding . 32 B.5 Wear . 32 B.6 Roughness index of the wheel tread . 33 B.7 Interruption of the tests . 33 B.8 Temperatures . 33 B.9 Wet conditions . 33 B.10 Test of simulation of downhill . 34 B.11 Test wheels . 34 Annex C (normative)
Composite brake blocks (K) (2Bg – 2Bgu)– Demonstration of friction properties for S and SS (S/SS) – braked freight wagons (vmax = 120 km/h) . 35 C.1 Program for performance tests . 35 C.2 Program for simulation brake assessment . 41 C.3 Dispersion range of mean friction coefficients . 42 C.4 Dispersion range of instantaneous friction coefficients . 46 Annex D (normative)
Composite brake blocks (LL) – Demonstration of friction properties for S and SS (S/SS) – braked freight wagons (vmax = 120 km/h) . 47 D.1 Program for performance tests . 47 D.2 Program for simulation brake assessment . 52 D.3 Dispersion range of mean friction coefficients . 54 D.4 Dispersion range of instantaneous friction coefficients . 56 SIST EN 16452:2015+A1:2019
Composite brake blocks (K) (1Bg)– Demonstration of friction properties for S and SS (S/SS) – braked freight wagons (vmax = 120 km/h) . 57 E.1 Program for performance tests. 57 E.2 Dispersion range of mean friction coefficients . 60 E.3 Dispersion range of instantaneous friction coefficients . 62 Annex F (normative)
Composite brake blocks (L) – Demonstration of friction properties for extra tread brake of coach . 63 F.1 Program for performance tests. 63 F.2 Program for simulation brake assessment . 67 F.3 Dispersion range of mean friction coefficients in dry condition . 68 F.4 Dispersion range of mean friction coefficients in wet condition . 69 F.5 Dispersion range of instantaneous friction coefficients . 70 Annex G (normative)
Composite brake blocks (K) – Demonstration of friction properties for locomotives . 72 G.1 Program for performance tests. 72 G.2 Program for simulation brake assessment . 76 G.3 Dispersion range of mean friction coefficients in dry condition . 77 G.4 Dispersion range of mean friction coefficients in wet condition . 78 G.5 Dispersion range of instantaneous friction coefficients . 79 Annex H (normative)
Composite brake blocks (K) – Demonstration of friction properties for EMU – DMU . 81 H.1 Program for performance tests. 81 H.2 Program for simulation brake assessment . 86 H.3 Dispersion range of mean friction coefficients in dry condition . 87 H.4 Dispersion range of mean friction coefficients in wet condition . 88 H.5 Dispersion range of instantaneous friction coefficients . 89 Annex I (normative)
Composite brake blocks (K) – Demonstration of friction properties for High speed train (motor bogie). 91 I.1 Program for performance tests. 91 I.2 Program for simulation brake assessment . 94 I.3 Dispersion range of mean friction coefficients in dry condition . 95 I.4 Dispersion range of mean friction coefficients in wet condition . 97 I.5 Dispersion range of instantaneous friction coefficients . 98 Annex J (!normative")
Dynamometer test program – Generic test program . 100 J.1 General . 100 J.2 Generic test program . 100 J.3 Definitions . 104 J.4 !Values to be determined in order to define the area of use . 104 SIST EN 16452:2015+A1:2019
Dynamometer Test program to detect the formation of metal pick-up at the brake block . 107 K.1 Test program for freight wagons with brake blocks type K and LL . 107 K.2 Test program for locomotives with brake blocks type K . 109 K.3 Test program for EMU – DMU with brake blocks type K. 112 K.4 Test program for High speed train with brake blocks type K . 115 Annex L (normative)
Dynamometer test program to demonstrate the extreme winter braking properties . 118 L.1 Test program for freight wagons with brake blocks type K . 118 L.2 Test program for freight wagons with brake blocks type LL . 120 L.3 Specific requirements for conducting Test Programs L.1 and L.2 . 121 L.4 Process of assessment and past fail criteria for test programs L.1 and L.2 . 122 L.5 Generic flow chart to perform test program . 123 L.6 Detailed flow chart to perform test program (example brake block K) . 124 Annex M (normative)
Test run to demonstrate the extreme winter braking properties brake blocks K – LL for freight wagons . 127 M.1 !Test program to demonstrate the braking properties under severe snowy conditions . 127 M.2 Values to be determined in order to define the area of use . 130 M.3 Assessment of measurement data and pass/fail criteria . 130 Annex N (normative)
Dynamometer Test program to simulate “Locked brake” . 132 N.1 Test program for freight wagons with brake blocks type K and LL . 132 N.2 Test program for locomotives with brake blocks type K . 133 N.3 Test program for EMU – DMU with brake blocks type K. 134 N.4 Test program for High speed train with brake blocks type K . 135 Annex O (normative)
Dynamometer test program to demonstrate the compatibility with track circuits . 136 O.1 General . 136 O.2 Short description of the measuring method used. 136 O.3 Schematic diagram of test set up. 136 O.4 Flow chart to perform test program . 138 O.5 Preparation of the disc and the rollers . 138 O.6 Preparation of the samples of brake block . 139 O.7 Contamination of disc . 139 O.8 Measurements . 140 O.9 Assessment of the results . 141 Annex P (informative)
Vehicle test to demonstrate the compatibility with track circuits . 143 SIST EN 16452:2015+A1:2019
Dynamometer test program – Determination of static friction coefficient . 147 Q.1 !Generic test program for freight wagons with brake blocks type K and LL . 147 Q.2 !Specific test program for S and/or SS freight wagons with brake blocks type K and LL" . 147 Q.3 Test program for EMU – DMU and Locomotive with brake blocks type K . 149 Q.4 Test program for High speed train with brake blocks type K . 150 Q.5 !Specific Requirements for conducting dynamometer test programmes Q.1 to Q.4" . 150 Annex R (informative)
Dynamometer test program – Simulation of service conditions for freight wagons . 153 R.1 Simulation freight wagon with brake block type K 2Bgu . 153 R.2 Simulation freight wagon with brake block type LL 2Bgu . 155 Annex S (normative)
Interchangeability, rejection lugs and critical dimensions . 158 Annex T (normative)
Brake block shear and flexural strength tests . 161 T.1 General . 161 T.2 Shear strength test . 161 T.3 Flexural strength test . 162 Annex U (normative)
Limitation of permissible mechanical damage of brake block . 164 U.1 General . 164 U.2 Cracked through to back-plate . 164 U.3 Crumbling of the friction material . 165 U.4 Metal pick-up . 165 U.5 Detachment from back-plate . 166 U.6 Cracks in the direction of wheel circumference . 166 U.7 Detachment of the friction material . 166 U.8 Interface with the brake block holder . 167 Annex V (normative)
In service assessment of brake block . 168 V.1 General . 168 V.2 Freight wagon . 168 V.3 Coach . 169 V.4 Locomotive . 169 V.5 EMU-DMU . 170 V.6 High speed train . 170 SIST EN 16452:2015+A1:2019
Complementary definitions and abbreviations . 173 Annex X (informative)
Brake block characterization test . 175 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC aimed to be covered . 176 Bibliography . 179
This document supersedes !EN 16452:2015".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !". This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document. Compared to the previous edition, the following changes have been made: a) 7.3 “Static friction coefficient” has been modified; b) 7.4.2 “Dynamometer test” has been modified; c) 7.5.1 “Generic prescriptions” has been modified; d) 7.4.3 “Train brake test” has been modified; e) Annex A “Summary of Dynamometer test programs and acceptance criteria” has been modified; f) Annex J “Dynamometer test program – Generic test program” has been modified; g) Annex M “Test run to demonstrate the extreme winter braking properties brake blocks K – LL for freight wagons” has been modified; h) Annex Q “Dynamometer test program – Determination of static friction coefficient” has been modified; i) Annex T “Brake block shear and flexural strength tests” has been modified; j) Annex ZA has been updated. 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, 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 the United Kingdom.
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14478 and the following apply. 3.1 application parameter configuration parameters refer to vehicle mass, operating speed, wheel diameter, braked mass, brake block configuration, brake block force 3.2 Bg configuration one brake block 320 mm per brake block holder Note 1 to entry: Bg comes from UIC and means “Bremsklotzsohle geteilt”. 3.3 Bgu configuration two brake blocks 250 mm per brake block holder Note 1 to entry: Bgu comes from UIC and means “Bremse geteilt mit unterteilter Sohle”. 3.4 brake block stator part of a tread brake adapted to generate a friction force when engaged with a wheel tread 3.5 brake block force force with which the brake block is made to come into contact with the wheel tread 3.6 friction material consumable portion of the brake block that acts on the wheel tread in order to provide the specified brake performance SIST EN 16452:2015+A1:2019
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