EN 15329:2019

Railway applications - Braking - Brake block holder and brake block key

This document applies to brake block holders and brake block keys included in brake rigging installed on railway vehicles.
Brake block holders and brake block keys made of non-ferrous materials are not within the scope of this document.
This document contains requirements for design and evaluation testing of conformity.
The requirements contained in this document apply to the brake block holders and brake block keys fitted on railway vehicles with brake blocks whose dimensions are in accordance with the requirements given in EN 16452.

Bahnanwendungen - Bremsen - Bremsklotzhalter und Bremsklotzkeil

Dieses Dokument gilt für Bremsklotzhalter und Bremsklotzkeile, die in das Bremsgestänge von Schienenfahrzeugen eingebaut werden.
Bremsklotzhalter und Bremsklotzkeile aus Nichteisenwerkstoffen fallen nicht in den Anwendungsbereich dieses Dokuments.
Dieses Dokument enthält Anforderungen an die konstruktive Ausführung und die Typtestprüfung zur Konformität.
Die Anforderungen in diesem Dokument gelten für Bremsklotzhalter und Bremsklotzkeile in Schienenfahrzeugen mit Bremsklötzen, deren Maße den Anforderungen in EN 16452 entsprechen.

Applications ferroviaires - Freinage - Porte-semelles et clavette de semelle de frein

Le présent document s’applique aux porte-semelles et aux clavettes de semelles de frein inclus dans la timonerie de frein installée sur les véhicules ferroviaires.
Les porte-semelles et clavettes de semelles de frein fabriqués en matériaux non ferreux ne relèvent pas du domaine d’application du présent document.
Le présent document contient des exigences concernant la conception et l’évaluation de la conformité par des  essais.
Les exigences contenues dans le présent document s’appliquent aux porte-semelles et aux clavettes de semelles de frein montés sur les véhicules ferroviaires équipés de semelles de frein dont les dimensions sont conformes aux exigences de l’EN 16452.

Železniške naprave - Zavore - Nosilec zavorne ploščice in zavorni ključ

Ta evropski standard se uporablja za nosilce zavornih ploščic in zavornih ključev, nameščene na železniških vozilih.
Nosilci zavornih ploščic in zavornih ključev, izdelani iz neželeznih materialov, niso predmet tega osnutka evropskega standarda.
Ta evropski standard vsebuje zahteve za zasnovo in ocenjevalno preskušanje skladnosti.
Zahteve iz tega osnutka evropskega standarda se uporabljajo za nosilce zavornih ploščic in zavornih ključev, ki so nameščeni na železniških vozilih glavnih železniških prog in zasebnih železniških prog (regionalne železniške proge, železniške proge podjetij).

General Information

• Status: Published
• Publication Date: 19-Mar-2019
• Withdrawal Date: 29-Sep-2019
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/SC 3/WG 47 - Braking
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 03-Sep-2024
• Completion Date: 14-Apr-2025
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• 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: SIST EN 15329:2019 - Railway applications - Braking - Brake block holder and brake block key

Relations

• Replaces: EN 15329:2015 - Railway applications - Braking - Brake block holder and brake shoe key for railway vehicles
• Effective Date: 27-Mar-2019

Overview

EN 15329:2019 (CEN) is the European standard for railway braking components specifically covering brake block holders and brake block keys used in brake rigging on railway vehicles. It defines design, material and conformity testing requirements for ferrous (steel or cast iron) holders and keys and excludes non‑ferrous materials. The standard applies where brake blocks comply with EN 16452 and includes normative annexes for single and double holders, interchangeability marking and a relationship to EU Directive 2008/57/EC.

Key Topics and Requirements

• Scope & exclusions
  • Applies to brake block holders and brake block keys in brake rigging; non‑ferrous materials are excluded.
  • Intended for brake blocks dimensioned per EN 16452.
• Materials
  • Permitted materials: steel (cast, forged, rolled or welded) and grey or nodular cast iron.
  • Material declaration required (e.g., EN 10204 inspection documents).
  • Corrosion protection rules to avoid hazards and preserve bearing points.
• Design & environmental requirements
  • Design must consider vehicle use category (e.g., GE - general operation).
  • Environmental parameters defined by EN 50125‑1 and EN 60721 series: temperature class TX (external air up to +70 °C), humidity, rain (6 mm/min), snow/ice/hail (hail up to 15 mm noted), solar radiation (1 120 W/m² for up to 8 h/day), and pollution classes (IPX5/minimum).
• Testing & conformity
  • Type testing regime covering material tests, component static and dynamic loading, dimensional accuracy and specific tests for brake block keys.
  • Static and dynamic load tests and fatigue assessments are specified to verify secure mounting and service performance.
• Marking & documentation
  • Requirements for marking, interchangeability sign (“U”), and declarations of conformity are included.

Applications and Users

EN 15329:2019 is used by:

• Brake component manufacturers and designers (brake block holders, keys, brake rigging).
• Railway vehicle OEMs and subsystem integrators specifying braking components.
• Test laboratories and notified bodies performing type testing and conformity assessment.
• Maintenance engineers, procurement teams and regulators ensuring component interchangeability and compliance with EU vehicle acceptance requirements. Practical applications include component selection, design validation, procurement specs, and certification of brake rigging parts for rolling stock.

Related Standards

• EN 16452 (Brake blocks)
• EN 50125‑1 (Environmental conditions - rolling stock)
• EN 15085 (Welding of railway vehicles)
• EN 10204 (Inspection documents) EN 15329:2019 aligns with CEN rules and supports compliance with EU Interoperability Directive 2008/57/EC.

Keywords: EN 15329:2019, brake block holder, brake block key, railway braking standard, type testing, brake rigging, EN 16452, environmental conditions, conformity testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2019
1DGRPHãþD
SIST EN 15329:2015
äHOH]QLãNHQDSUDYH=DYRUH1RVLOHF]DYRUQHSORãþLFHLQ]DYRUQLNOMXþ
Railway applications - Braking - Brake block holder and brake block key
Bahnanwendungen - Bremsen - Bremsklotzhalter und Bremsklotzkeil
Applications ferroviaires - Freinage - Porte-semelles et clavette de semelle et clavette de
semelle de frein
Ta slovenski standard je istoveten z: EN 15329:2019
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 15329
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 45.040 Supersedes EN 15329:2015
English Version
Railway applications - Braking - Brake block holder and
brake block key
Applications ferroviaires - Freinage - Porte-semelles et Bahnanwendungen - Bremsen - Bremsklotzhalter und
clavette de semelle de frein Bremsklotzkeil
This European Standard was approved by CEN on 30 December 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 15329:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Symbols and abbreviations . 5
4.1 Symbols . 5
4.2 Abbreviations . 5
5 Materials . 6
5.1 General . 6
5.2 Material for brake block holder . 6
5.3 Material for brake block key . 6
5.4 Corrosion protection. 6
6 Design . 6
6.1 Environmental conditions . 6
6.1.1 General . 6
6.1.2 Ambient temperature . 6
6.1.3 External air humidity . 6
6.1.4 Rain . 7
6.1.5 Snow, ice and hail . 7
6.1.6 Solar radiation . 7
6.1.7 Resistance to pollution . 7
6.2 Brake block holders . 7
6.2.1 General . 7
6.2.2 Dimensional accuracy . 8
6.3 Brake block key . 8
7 Markings . 8
8 Type testing . 8
8.1 General . 8
8.1.1 General requirements for type testing . 8
8.1.2 Elements of type testing . 9
8.1.3 Material testing . 9
8.1.4 Component testing . 9
8.2 Type testing for brake block holders . 9
8.2.1 Static loading . 9
8.2.2 Dynamic loading . 11
8.3 Testing of brake block key . 12
8.3.1 Dimensional accuracy . 12
8.3.2 Loading test . 12
Annex A (normative) Single brake block holder . 13
Annex B (normative) Double brake block holder . 15
Annex C (normative) Marking of interchangeability sign U . 18
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2008/57/EC aimed to be covered . 19
Bibliography . 21
European foreword
This document (EN 15329:2019) 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 September 2019, and conflicting national standards shall be withdrawn at
the latest by September 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15329:2015.
This document has been prepared under a standardization request given to CEN by the European Commission
and the European Free Trade Association, and supports essential requirements of EU 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) the standard title has been modified;
b) normative references have been updated;
c) terms and definitions have been revised;
d) requirements on materials have been revised;
e) requirements on design have been revised;
f) requirements on markings have been revised;
g) requirements on type testing have been revised;
h) normative Annexes have been revised;
i) new informative Annex ZA has been added.
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.
1 Scope
This document applies to brake block holders and brake block keys included in brake rigging installed on railway
vehicles.
Brake block holders and brake block keys made of non-ferrous materials are not within the scope of this
document.
This document contains requirements for design and evaluation testing of conformity.
The requirements contained in this document apply to the brake block holders and brake block keys fitted on
railway vehicles with brake blocks whose dimensions are in accordance with the requirements given in
EN 16452.
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 10204, Metallic products — Types of inspection documents
EN 14478, Railway applications — Braking — Generic vocabulary
EN 15085 (all parts), Railway applications — Welding of railway vehicles and components
EN 16452, Railway applications — Braking — Brake blocks
EN 50125-1:2014, Railway applications — Environmental conditions for equipment — Part 1: Rolling stock and
on-board equipment
EN 60721-3-5:1997, Classification of environmental conditions — Part 3: Classification of groups of environmental
parameters and their severities — Section 5: Ground vehicle installations (IEC 60721-3-5:1997)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14478, EN 16452 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
brake block key
securing element for the brake block in the brake block holder
3.2
brake block with low coefficient of friction
composite (organic or sinter) brake block material type L or LL as defined in EN 16452 or cast iron brake block
material
3.3
brake block with high coefficient of friction
composite (organic or sinter) brake block material type K as defined in EN 16452
3.4
single brake block holder
brake block holder suitable for one brake block typically of length 320 mm; corresponds to “Bg” configuration as
defined in EN 16452
3.5
double brake block holder
brake block holder suitable for two brake blocks typically of length 250 mm; corresponds to “Bgu” configuration
as defined in EN 16452
3.6
integrated brake rigging
brake rigging as an integrated part of the brake actuator
3.7
non-integrated brake rigging
independent brake rigging
Note 1 to entry: Known as “standard rigging”.
4 Symbols and abbreviations
4.1 Symbols
For the purposes of this document, the symbols given in Table 1 apply.
Table 1 — Symbols and units
Symbol Description Unit
D Diameter mm
F Maximum application force in service = maximum pneumatic kN
bmax
a
application force + overlapping parking brake force
F Test force kN
Pr
F Dynamic test force kN
Prdyn
F Dynamic mean force kN
Prm
h Pitch before deflection test mm
L Span during deflection test mm
s
a
Overlapping is to be considered if overlapping is a normal mode.

4.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
MP magnetic particle testing
UT Ultrasonic Testing
GE Go Everywhere
5 Materials
5.1 General
The ferrous materials used for the manufacturing of brake block holders and their components shall comply with
relevant standards of material (as for instance welded design shall be in accordance with EN 15085).
Declaration of conformity with standards (e.g. with EN 10204 or internal specification) shall be provided.
5.2 Material for brake block holder
The brake block holders shall be produced from one of the following:
— steel (cast, forged, rolled or welded);
— grey or nodular cast iron.
5.3 Material for brake block key
The selection of the material and the manufacturing process are free and shall comply with the technical
specifications and/or the drawings.
5.4 Corrosion protection
If corrosion protection is applied, it shall not contain any components constituting a hazard for the staff coming
into contact with them. Should paint colouring be applied, care shall be taken to ensure that bearing points for
bolts, bushes and moving parts are free from paint.
6 Design
6.1 Environmental conditions
6.1.1 General
For vehicles used in “general operation” or “GE” (various formations of vehicles from different origins; train
formation not declared at design stage) and using non-integrated brake rigging, all the environmental
requirements listed shall be taken into account within the design concept of the components. However only the
assessment tests listed in Clause 8 shall be performed. The remaining proofs are to be presented in the
declarations of conformity.
For other vehicles any deviation on below environmental conditions is allowed. Any special requirement shall
be declared in a specification.
6.1.2 Ambient temperature
The brake component shall be able to operate within the temperature class TX in accordance with EN 50125-1,
where the upper limit for TX shall be raised up to +70 °C for the external air temperature.
6.1.3 External air humidity
The following humidity levels shall be considered for the external environment (EN 50125-1:2014, 4.4):
— yearly average: 75 % relative humidity;
— on 30 days in the year continuously: between 75 % and 95 % relative humidity;
— on the other days occasionally: between 95 % and 100 % relative humidity;
— maximum absolute humidity: 30 g/m occurring in tunnels.
...