EN 13231-2:2020

SLOVENSKI STANDARD
01-januar-2021
Nadomešča:
SIST EN 13231-3:2012
SIST EN 13231-4:2013
Železniške naprave - Zgornji ustroj proge - Prevzem del - 2. del: Prevzem
reprofiliranih tirov na odprti progi, ostric, prehodov in razširjevalnih naprav
Railway applications - Track - Acceptance of works - Part 2: Acceptance of reprofiling
rails in plain line, switches, crossings and expansion devices
Bahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 2: Abnahme von
reprofilierten Schienen im Gleis, Weichen, Kreuzungen und Schienenauszügen
Applications ferroviaires - Voie - Réception des travaux - Partie 2 : Critères de réception
des travaux de reprofilage des rails en voie et dans les appareils de voie
Ta slovenski standard je istoveten z: EN 13231-2:2020
ICS:
45.080 Tračnice in železniški deli Rails and railway
components
93.100 Gradnja železnic Construction of railways
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13231-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 93.100 Supersedes EN 13231-3:2012, EN 13231-4:2013
English Version
Railway applications - Track - Acceptance of works -
Part 2: Acceptance of reprofiling rails in plain line,
switches, crossings and expansion devices
Applications ferroviaires - Voie - Réception des travaux Bahnanwendungen - Oberbau - Abnahme von Arbeiten
- Partie 2 : Critères de réception des travaux de - Teil 2: Abnahme von reprofilierten Schienen im Gleis,
reprofilage des rails en voie et dans les appareils de Weichen, Kreuzungen und Schienenauszügen
voie
This European Standard was approved by CEN on 28 September 2020.

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, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13231-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Longitudinal profile . 13
4.1 Principle . 13
4.2 Measurements required . 13
4.3 Acceptance criteria for longitudinal profile . 14
4.3.1 General . 14
4.3.2 Peak-to-peak limit . 14
5 Transverse profile . 15
5.1 Principle . 15
5.2 Areas in switches and crossings which are limited for reprofiling. 15
5.3 Measurements required . 15
5.4 Acceptance criteria for the transverse profile . 16
6 Metal removal . 17
6.1 Measurements required . 17
6.2 Acceptance criteria for metal removal . 17
7 Surface quality. 18
8 Visual appearance: acceptance criteria . 18
9 Rolling contact fatigue . 18
Annex A (normative) Calculation of peak-to-peak values . 19
A.1 Calculation of the percentage of exceedances . 19
Annex B (normative) Method of periodic verification . 21
B.1 Method of periodic verification of approved instruments . 21
B.2 Longitudinal profile . 21
B.3 Transverse profile . 23
Annex C (normative) Procedures to verify reference instruments . 28
C.1 Longitudinal profile . 28
C.2 Transverse profile . 36
Annex D (normative) Procedures to demonstrate correlation of approved and reference
instruments . 38
D.1 Longitudinal profile . 38
D.2 Transverse profile . 41
D.3 Surface quality. 49
Annex E (normative) Calculation of cumulative density function and power spectral density
(PSD) of the amplitude of the longitudinal profile . 51
E.1 Calculation of cumulative density function of the amplitude of the longitudinal
profile . 51
E.2 Calculation of the power spectral density of the amplitude of the longitudinal profile . 53
Annex F (normative) Rail surface quality measurement . 55
F.1 Requirements . 55
F.2 Calculation of the quality index (QI) . 55
F.3 Verification of the functional capability . 56
F.4 Verification of the functional capability . 56
F.5 Coordinate measuring machine (CMM) . 57
F.6 Measurement of the comparison standard using the CMM . 57
F.7 Analysis of data from CMM . 57
F.8 Measurement of the comparison standard using the test instrument . 57
F.9 Maximum deviation between test instrument and CMM . 57
Bibliography . 58

European foreword
This document (EN 13231-2:2020) 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 May 2021, and conflicting national standards shall be
withdrawn at the latest by May 2021.
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 13231-3:2012 and EN 13231-4:2013. The main changes compared to the
previous edition are listed below:
— EN 13231-2 merges the previous EN 13231-2 and EN 13231-3;
— updated to display the state of the art;
— mistakes have been solved;
— Clause 7 is new.
This document is part of the series EN 13231 “Railway applications - Track - Acceptance of works” as
listed below:
— Part 1: Works on ballasted track - Plain line, switches and crossings
— Part 2: Acceptance of reprofiling rails in plain line, switches, crossings and expansion devices
— Part 5: Procedures for rail reprofiling in plain line, switches, crossings and expansion devices
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, Turkey and the
United Kingdom.
1 Scope
This document defines the technical requirements and measurements for the acceptance of works for
longitudinal and/or transverse reprofiling of railway rail heads in plain line, switches and crossings and
expansion devices.
This document applies to Vignole rails of 46 kg/m and above according to EN 13674-1.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 https://www.iso.org/obp
3.1
reprofiling zones in switches
area where required reprofiling work is done on the switches depending on the position of the rail
within the switch
Note 1 to entry: There are three general areas of treatment as shown in Figure 1.

Key
○ welding/joint 2 zone G (closure panel)
1 zone F (switch panel) 3 zone H (crossing panel)
Figure 1 — Reprofiling zones in switches
3.2
reference points
points A, B and B that describe the area for the transverse rail head profile
1 2
Note 1 to entry: See Figure 2.

Key
1 angle of inclination 5 reference point B1 (see 3.25)
2 rail axis 6 reference point B (see 3.26)
3 reference line (see 3.23) 7 distance between point B1 and reference line (usually 14 mm)
4 reference point A (see 3.24) 8 angle between tangent at point B2 and reference line (usually 45°)
Figure 2 — Definition of terms, and determination of reference points A, B and B on the
1 2
transverse profile
3.3
reprofiling zone
part of the rail
...