European foreword

This document (EN 15551:2017) 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of an identical text or by endorsement, at the latest by July 2017 and conflicting national standards shall be withdrawn at the latest by July 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 15551:2009+A1:2010.

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC.

For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document.

NOTE After the publication of EN 16839, Railway applications — Rolling stock — Head stock layout, as a European Standard, the overlapping content and all items not pertinent to the product "Buffer" will be removed from this document.

Compared with EN 15551:2009+A1:2010, the following main changes have been done:

a) the “Introduction” was checked upon and revised;
b) Clause 1 “Scope” was revised;
c) Clause 2 “Normative references” as well the final “Bibliography” were checked upon and revised;
d) Clause 3 was modified:
1. 1) damping (3.11) was deleted and the calculation of damping in 3.8;
2. 2) definitions of stored energy and absorbed energy for static and dynamic condition were added as 3.12 to 3.15;
3. 3) the term “technical specification” was added as 3.16;
e) the term “elastic device” was replaced by “elastic system”;
f) the classification of crashworthy buffers was added as new Subclause 4.5;
g) tests for type tests and series tests were defined in the new Table 2 and modified in Table 7;
h) the static requirements in Table 5 have been changed;
i) Table C.2 "Nature of inspection and tests" was revised;
j) for friction and ring springs the two Subclauses C.2.4 "Static characteristics" and C.2.5 "Dynamic characteristics" were added;
k) Annex E was revised with the specification of the high sided test wagons;
l) Table H.1 was revised and new materials were added;
m) Annex I was modified to be analogous to prEN 16839 (this annex will be deleted after EN 16839 is published);
n) in Annex J, the test for crashworthy buffers was modified;
o) the following figures were modified:
1. 1) Figure 1 — Force-stroke diagram for stored and absorbed energy;
2. 2) Figure 2 — Mounting of buffers with non metallic inserts or heads;
3. 3) Figure 6 — Marking;
4. 4) Figure 7 — Boundary dimensions and minimum surface of buffer heads;
5. 5) Figure A.1 — Dimension of the maximum space envelope of buffer - Side view;
6. 6) Figure B.1 — Location of measurement;
7. 7) Figure K.1 — Dimension of the maximum space of the buffer;
p) editorial modifications were carried out.

According to the CEN-CENELEC Internal Regulations, the national standards organizations 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.

BS EN 15551:2017

Railway applications. Railway rolling stock. Buffers

Published:

28 Feb 2017

Withdrawn:

9 Sep 2022