EN 13232-8:2023

SLOVENSKI STANDARD
01-december-2023
Železniške naprave - Zgornji ustroj proge - Kretnice in križišča za Vignolove tirnice
- 8. del: Dilatacijske naprave
Railway applications - Track - Switches and crossings for Vignole rails - Part 8:
Expansion devices
Bahnanwendungen - Oberbau - Weichen und Kreuzungen für Vignolschienen - Teil 8:
Auszugsvorrichtungen
Applications ferroviaires - Infrastructure - Appareils de voie - Partie 8: Appareils de
dilatation
Ta slovenski standard je istoveten z: EN 13232-8:2023
ICS:
45.080 Tračnice in železniški deli Rails and railway
components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13232-8
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2023
EUROPÄISCHE NORM
ICS 93.100 Supersedes EN 13232-8:2007+A1:2011
English Version
Railway applications - Track - Switches and crossings for
Vignole rails - Part 8: Expansion devices
Applications ferroviaires - Voie - Appareils de voie Bahnanwendungen - Oberbau - Weichen und
pour rails Vignole - Partie 8 : Appareils de dilatation Kreuzungen für Vignolschienen - Teil 8:
Auszugsvorrichtungen
This European Standard was approved by CEN on 2 January 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13232-8:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
3.1 General definitions . 7
3.2 Main types of expansion devices . 8
4 Design . 12
4.1 Design inputs . 12
4.2 Design rules . 13
4.2.1 General rules . 13
4.2.2 Wheel/rail interaction . 14
4.2.3 Specific rules . 14
4.3 Performance requirements . 15
4.4 Materials . 15
4.5 Design output . 15
4.5.1 Detailed component drawings . 15
4.5.2 Assembly documents . 16
5 Tolerances and inspection . 16
5.1 General . 16
5.2 Tools and instruments . 16
5.3 Critical dimensions . 16
5.3.1 Adjustment switch (bayonet type). 16
5.3.2 Expansion switch . 21
5.4 Certification . 28
5.5 Methods of examination for structural defects . 28
6 Testing of longitudinal forces by expansion/contraction . 28
6.1 Test method . 28
6.2 Test results . 29
7 Acceptance testing . 29
8 Limits and extent of supply . 29
9 Identification marks. 29
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive (EU) 2016/797 aimed to be covered . 30
Bibliography . 32

European foreword
This document (EN 13232-8:2023) 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 April 2024, and conflicting national standards shall be
withdrawn at the latest by April 2024.
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 13232-8:2007+A1:2011.
This series of standards “Railway applications – Track – Switches and crossings for Vignole rails” covers
the design and quality of switches and crossings in flat bottomed rail. The list of Parts is as follows:
— Part 1: Definitions
— Part 2: Requirements for geometric design
— Part 3: Requirements for wheel/rail interaction
— Part 4: Actuation, locking and detection
— Part 5: Switches
— Part 6: Fixed common and obtuse crossings
— Part 7: Crossings with moveable parts
— Part 8: Expansion devices
— Part 9: Layouts
Part 1 contains terminology used throughout all parts of this series. Parts 2 to 4 contain basic design
guides and are applicable to all switch and crossing assemblies. Parts 5 to 8 deal with particular types of
equipment including their tolerances. These use Parts 1 to 4 as a basis. Part 9 defines the geometric and
non-geometrical acceptance criteria for inspection of layouts.
This document has been prepared under a standardisation request addressed to [the relevant ESO] by
the European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
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 implement this European Standard: 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
An expansion device is a device that permits longitudinal relative rail movement of two adjacent rails,
while maintaining correct guidance and support.
These longitudinal movements may be required in:
a) interrupted continuously welded rail (CWR);
b) structure movement;
c) or a combination of both.
1 Scope
This document
— establishes a working terminology for expansion devices, for their constituent parts and for the
types
— specifies the minimum manufacturing requirements for expansion devices and their constituent
parts
— formulates codes of practice for inspection and tolerances
— defines the method by which expansion devices and their parts should be identified.
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 13146-1:2019, Railway applications - Track - Test methods for fastening systems - Part 1:
Determination of longitudinal rail restraint
EN 13232-1:2023, Railway applications – Track — Switches and crossings for Vignole rails – Part 1:
Definitions
EN 13232-2:2023, Railway applications – Track — Switches and crossings for Vignole rails – Part 2:
Requirements for geometric design
EN 13232-3:2023, Railway applications – Track – Switches and crossings for Vignole rails – Part 3:
Requirements for wheel/rail interaction
EN 13232-9:2023, Railway applications – Track – Switches and crossings for Vignole rails – Part 9:
Layouts
EN 13715:2020, Railway applications – Wheelsets and bogies – Wheels – Wheels tread
EN 13674-1:2011+A1:2017, Railway applications – Track – Rail - Part 1: Vignole railway rails 46 kg/m
and above
EN 13674-2:2019, Railway applications – Track – Rail- Part 2: Switch and crossing rails used in
conjunction with Vignole railway rails 46 kg/m and above
3 Terms and definitions
For the purpose of this document the terms and definitions given in EN 13232-1:2023 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1 General definitions
3.1.1
hand of half set
identifies the left hand or right hand half set of the adjustment or expansion switch when viewed
standing in the centre of the track and facing the tips of the inside rails or switches
Note 1 to entry: With check rails, there may be two LH or two RH half sets, see Figure 6, or opposite hand half
sets.
Note 2 to entry: See 3.2.1 for definition of adjustment switch.
Note 3 to entry: See 3.2.2 for definition of expansion switch.
3.1.2
expansion capacity C
maximum permissible relative longitudinal movement between the two rails, where:
C = D – D
max min
Note 1 to entry: See Figures 1 and 2.

Key Key
D minimum gap D maximum gap
min max
Figure 1 — Closed position Figure 2 — Open position
3.1.3
relative displacement rail / support
maximum permissible relative longitudinal movement between the rail (switch or stock rail) and the
corresponding support (base plate or b
...