SIST EN 15328:2020+A1:2024

Railway applications - Braking - Brake pads

This document specifies requirements for pads for disc brakes of railway rolling stock.
The document defines requirements and generic test programs for brake pads on dynamometer. This document does not cover mandatory tests to verify stopping distances in addition to laboratory, bench test and in-service tests. In order to qualify the brake pad performance in accordance with the classification the standard provides fixed parameter figures as categories defined in paragraph classification scheme.
This document is not applicable for urban rail applications.

Bahnanwendungen - Bremsen - Bremsbeläge

Dieses Dokument legt Anforderungen für Bremsbeläge für Scheibenbremsen von Schienenfahrzeugen fest.
Dieses Dokument legt die Anforderungen und allgemeinen Prüfprogramme für Bremsbeläge am Reibungsprüfstand fest. Dieses Dokument deckt nicht die vorgeschriebene Verifizierung von Anhaltewegen fest, die zusätzlich zu Laboruntersuchungen, Prüfstandsversuchen und Betriebserprobungen durchgeführt werden. Zur Bestimmung der Leistung des Bremsbelags in Übereinstimmung mit der Klassifizierung enthält die Norm feste Parameterwerte als Kategorien, die im Absatz über das Klassifizierungsschema definiert sind.
Dieses Dokument ist nicht anwendbar für städtische Schienenbahnen.

Applications ferroviaires - Freinage - Garniture de frein

Le présent document spécifie les exigences relatives aux garnitures destinées aux freins à disque qui équipent le matériel roulant ferroviaire.
Le présent document définit les exigences, ainsi que les programmes d'essai génériques pour les garnitures de frein sur des dynamomètres. Le présent document ne couvre pas les essais obligatoires destinés à vérifier les distances d'arrêt en plus des essais en laboratoire, des essais sur banc et des essais en service. Dans le but de qualifier les performances des garnitures de frein selon la classe choisie, la présente norme fournit des paramètres fixes sous forme de catégories définies dans le paragraphe Système de classification.
Le présent document n'est pas applicable aux applications ferroviaires pour le rail urbain.

Železniške naprave - Zavore - Zavorne obloge

Ta dokument določa zahteve za zavorne obloge za železniška vozila.
Dokument opredeljuje zahteve in splošne preskusne programe za zavorne obloge na dinamometru. Ne zajema obveznih preskusov za preverjanje zavornih razdalj, niti laboratorijskih preskusov, primerjalnih preskusov in preskusov med uporabo. Za določitev ustrezne zmogljivosti zavornih oblog v skladu s klasifikacijo standard zagotavlja stalne vrednosti parametrov kot kategorije, opredeljene v shemi razvrščanja odstavkov.
Ta dokument se ne uporablja za mestne železniške naprave.

General Information

• Status: Published
• Publication Date: 18-Apr-2024
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: IŽNP - Reilway applications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 18-Apr-2024
• Due Date: 23-Jun-2024
• Completion Date: 19-Apr-2024
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: EN 15328:2020+A1:2024 - Railway applications - Braking - Brake pads

Relations

• Merged From: SIST EN 15328:2020 - Railway applications - Braking - Brake pads
• Effective Date: 14-Feb-2024
• Merged From: SIST EN 15328:2020/kFprA1:2023 - Railway applications - Braking - Brake pads
• Effective Date: 14-Feb-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2024
Železniške naprave - Zavore - Zavorne obloge
Railway applications - Braking - Brake pads
Bahnanwendungen - Bremsen - Bremsbeläge
Applications ferroviaires - Freinage - Garniture de frein
Ta slovenski standard je istoveten z: EN 15328:2020+A1:2024
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 15328:2020+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2024
EUROPÄISCHE NORM
ICS 45.040 Supersedes EN 15328:2020
English Version
Railway applications - Braking - Brake pads
Applications ferroviaires - Freinage - Garniture de frein Bahnanwendungen - Bremsen - Bremsbeläge
This European Standard was approved by CEN on 15 June 2020 and includes Amendment 1 approved by CEN on 2 March 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15328:2020+A1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Symbols and abbreviations . 10
5 Characteristics and test method of the brake pads . 11
5.1 Classification of brake pads . 11
5.2 Coefficient of friction . 11
5.3 Environmental impact, health and safety . 11
5.4 Usage requirements . 11
5.5 Frictional requirements for brake pads . 11
5.5.1 General . 11
5.5.2 Priority levels of brake applications . 12
5.5.3 Criteria for the nominal line . 12
5.5.4 Criteria for the mean coefficient of friction . 12
5.5.5 Criteria for continuous brake applications . 13
5.5.6 Criteria for bedding brake applications . 13
5.6 Requirements and optional test programs for brake pads for coaches . 14
5.6.1 General . 14
5.6.2 Tolerance ranges . 14
5.6.3 Criteria for continuous brake applications . 14
5.6.4 Criteria for bedding brake applications . 14
5.6.5 Coefficient of friction under high thermal load . 14
5.6.6 Coefficient of friction under wet conditions . 14
5.7 Geometrical features of the brake pads . 15
5.7.1 Brake pad shape . 15
5.7.2 Brake pad wear . 15
5.7.3 Brake pad fixing . 15
5.8 Mechanical, physical and chemical characteristics . 15
5.9 Thermal and mechanical requirements . 17
5.10 In-service assessment. 17
5.11 Marking of brake pads. 17
5.12 Dynamometer tests . 17
5.13 Conditions for classification tests . 18
5.13.1 Classification scheme for locomotives, MUs, high-speed trains, freight wagon and
coaches . 18
5.13.2 Optional classification scheme for coaches . 20
5.13.3 Validity of assessment . 20
5.13.4 Scope of classification . 20
5.14 Interchangeability of brake pads . 20
Annex A (normative) Generic conditions for the execution of test programs . 21
A.1 General . 21
A.2 Response time . 21
A.3 Weighing . 21
A.4 Interruption of test sequence . 21
A.5 Temperatures . 21
A.6 Brake applications under wet conditions . 21
A.7 Conditioning of brake discs. 22
A.7.1 General . 22
A.7.2 Conditioning program . 23
A.7.3 Roughness measurement . 23
A.8 Bedding-in of brake pads . 23
A.9 Methods of temperature measurements. 24
A.10 Mean friction radius . 24
A.11 Rotation and ventilation conditions . 24
Annex B (normative) Test programs for classes A1 to G1. 25
B.1 Test program: brake pads of class A1 . 25
B.2 Test program: brake pads of classes B1 and C1 . 27
B.3 Test Program: brake pads of classes B2 and C2 . 32
B.4 Test program: brake pads of class C0 . 37
B.5 Test program: brake pads of class C3 . 39
B.6 Test program: brake pads of class D1 . 42
B.7 Test program: brake pads of class D2 . 45
B.8 Test program: brake pads of class E1 . 49
B.9 Test program: brake pads of class F1 . 51
B.10 Test program: brake pads of classes F2 and G1 . 55
B.11 Test program: brake pads of class F3 . 57
B.12 Assessment of static friction coefficient . 60
Annex C (normative) Test programs for coaches . 61
C.1 Test program S1.1 (v = 200 km/h – organic brake pads) . 61
max
C.2 Test program S2.1 (wet test) . 64
C.3 Instantaneous coefficient of friction for test program S1.1, S2.1, T1 and T2 . 64
C.4 Mean coefficient of friction for test programs S1.1, S2.1, T1 and T2 . 65
C.5 Test program T1 (v = 200 km/h – sintered brake pads). 66
max
C.6 Test program T2 wet test (sintered brake pads) . 69
Annex D (normative) Documentation of brake tests . 70
Annex E (normative) Generic test programs for locomotives, MUs and high speed trains . 72
E.1 Use of the generic test programs . 72
E.2 Locomotives and MUs . 72
E.2.1 Test parameters. 72
E.2.2 B
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