CEN/TS 15427-1-2:2023

SLOVENSKI STANDARD
01-december-2023
Železniške naprave - Trenje na stiku kolo-tirnica - 1-2. del: Oprema in uporaba -
Zgornja površina tirnic
Railway applications - Wheel/Rail Friction Management - Part 1-2: Equipment and
Application - Top of Rail
Bahnanwendungen - Rad/Schiene Reibungsmanagement - Teil 1-2: Ausrüstung und
Anwendung - Schienenkopf
Applications ferroviaries - Gestion du Frottement Roue/Rail - Partie 1-2 : Équipements et
application - Tête de Rail
Ta slovenski standard je istoveten z: CEN/TS 15427-1-2:2023
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
45.080 Tračnice in železniški deli Rails and railway
components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TS 15427-1-2
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
October 2023
TECHNISCHE SPEZIFIKATION
ICS 21.260; 45.080; 45.120 Supersedes CEN/TS 15427-1-2:2021
English Version
Railway applications - Wheel/rail friction management -
Part 1-2: Equipment and application - Top of rail
Applications ferroviaries - Gestion du Frottement Bahnanwendungen - Reibungsmanagement zwischen
Roue/Rail - Partie 1-2 : Équipements et application - Rad und Schiene - Teil 1-2: Vorrichtungen und
Tête de Rail Anwendung - Kraftschlussmodifikatoren
This Technical Specification (CEN/TS) was approved by CEN on 9 July 2023 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15427-1-2:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General. 7
4.1 Purpose . 7
4.2 Application . 8
5 Requirements for trainborne equipment . 9
5.1 General. 9
5.2 Design of trainborne equipment . 9
5.3 Installation of trainborne equipment . 10
5.4 Operations, inspection and maintenance . 10
5.5 Application . 10
5.6 Verification . 12
6 Requirements for trackside equipment . 12
6.1 General. 12
6.2 Design of trackside equipment . 13
6.3 Installation of trackside equipment . 14
6.4 Operations, inspection and maintenance . 14
6.5 Application . 14
6.6 Verification . 15
Annex A (informative) Types of trainborne and trackside equipment . 16
A.1 Introduction . 16
A.2 Trainborne equipment . 16
A.2.1 General. 16
A.2.2 Fluid top of rail material application to the active interface . 16
A.2.3 Solid top of rail material application to the wheel . 16
A.3 Trackside equipment . 16
A.3.1 General. 16
A.3.2 Mechanically activated . 16
A.3.3 Hydraulically activated . 16
A.3.4 Electrically activated . 16
Annex B (informative) Guidance on approvals testing and verification . 17
B.1 General. 17
B.2 Process for system verification . 17
B.2.1 Baselining . 17
B.2.2 Approval and safety trials . 18
B.2.3 Measure effectiveness . 18
B.2.4 Monitoring. 19
B.2.5 Outcome of trial . 19
Annex C (informative) Good practice for trainborne equipment . 20
C.1 Reasons for installing trainborne equipment . 20
C.2 Determination of equipment position . 20
C.3 Inspection and maintenance . 20
Annex D (informative) Installation and maintenance good practice for trackside equipment
..................................................................................................................................................................... 25
D.1 Selecting locations for trackside equipment . 25
D.2 Determination of equipment position . 25
D.3 Inspection and maintenance . 26
D.4 Records . 26
Annex E (informative) Guideline braking tests for top of rail friction management
(trainborne and trackside equipment) . 27
E.1 General . 27
E.2 Choosing the right test vehicle . 27
E.3 Trainborne equipment . 27
E.4 Test conditions . 27
E.5 Brake tests. 28
E.6 Test parameters . 28
Bibliography . 29

European foreword
This document (CEN/TS 15427-1-2:2023) has been prepared by Technical Committee CEN/TC 256
“Railway applications”, the secretariat of which is held by DIN.
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 CEN/TS 15427-1-2:2021.
The 2023 edition has been updated with editorial changes following the feedback from the
CEN/TS 15427-1-2:2021 edition. This mainly consists of corrections and clarifications and improved
consistency with the other standards and technical specifications in the 15427 suite.
This document is part of the following series:
— EN 15427-1-1, Railway applications - Wheel/Rail friction management - Part 1-1: Equipment and
Application – Flange lubrication;
— CEN/TS 15427-1-2, Railway applications - Wheel/rail friction management - Part 1-2: Equipment
and application – Top of rail materials;
— CEN/TS 15427-1-3, Railway applications - Wheel/rail friction management - Part 1-3: Equipment
and application – Adhesion materials;
— EN 15427-2-1, Railway applications - Wheel/Rail friction management - Part 2-1: Properties and
Characteristics – Flange lubricants;
— CEN/TS 15427-2-2, Railway applications - Wheel/rail friction management - Part 2-2: Properties
and characteristics – Top of rail materials;
— CEN/TS 15427-2-3, Railway applications - Wheel/Rail friction management - Part 2-3: Properties
and Characteristics – Adhesion materials;
— CEN/prTR 15427-3, Railway applications – Wheel/Rail friction management - Part 3: Rationale
for requirements and further background information.
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 announce this Technical Specification: 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 the United Kingdom.

Introduction
Friction management using solid or fluid (oil, grease, etc.) substances at the wheel-rail interface is a
complex subject and includes:
— lubrication of the wheel flange / rail gauge corner interface, commonly referred to as “flange or
rail lubric
...