EN 15085-2:2020

SLOVENSKI STANDARD
01-december-2020
Nadomešča:
SIST EN 15085-2:2008
Železniške naprave - Varjenje železniških vozil in komponent - 2. del: Zahteve za
proizvajalca varilnih naprav
Railway applications - Welding of railway vehicles and components - Part 2:
Requirements for welding manufacturer
Bahnanwendungen - Schweißen von Schienenfahrzeugen und -fahrzeugteilen - Teil 2:
Anforderungen an Schweißbetriebe
Applications ferroviaires - Soudage des véhicules et des composants ferroviaires - Partie
2 : Exigences de qualité du constructeur
Ta slovenski standard je istoveten z: EN 15085-2:2020
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15085-2
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2020
EUROPÄISCHE NORM
ICS 25.160.01; 45.060.01 Supersedes EN 15085-2:2007
English Version
Railway applications - Welding of railway vehicles and
components - Part 2: Requirements for welding
manufacturer
Applications ferroviaires - Soudage des véhicules et des Bahnanwendungen - Schweißen von
composants ferroviaires - Partie 2 : Exigences de Schienenfahrzeugen und -fahrzeugteilen - Teil 2:
qualité du constructeur Anforderungen an Schweißbetriebe
This European Standard was approved by CEN on 24 August 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 NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

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 15085-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Classification levels and activities of manufacturers . 6
4.1 Classification level . 6
4.2 Type of activity of the manufacturer . 9
5 Requirements for the manufacturer . 9
5.1 General . 9
5.2 Welders and welding operators . 9
5.3 Welding coordination . 10
5.3.1 General . 10
5.3.2 Welding coordinators with comprehensive technical knowledge (Level A) . 10
5.3.3 Welding coordinators with specific technical knowledge (Level B) . 11
5.3.4 Welding coordinators with basic technical knowledge (Level C) . 11
5.3.5 Welding coordination organization . 11
5.3.6 Subcontracted welding coordinator . 12
5.4 Inspection personnel . 12
5.5 Technical requirements. 12
5.6 Welding procedure specification (WPS) . 13
6 Manufacturer’s declaration of the welding activities and organization . 13
7 Supervision of subcontracting . 14
Annex A (normative) Tasks and areas of competence of the welding coordinator . 15
Annex B (normative) Requirements for the welding coordination of manufacturers . 20
Annex C (informative) Guideline to evaluate the size of a welding manufacturer . 22
Annex D (informative) Guidance for the evaluation of the technical knowledge of welding
coordinators. 23
Bibliography . 28

European foreword
This document (EN 15085-2:2020) 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 April 2021, and conflicting national standards shall be
withdrawn at the latest by April 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 15085-2:2007. The main changes compared to the previous edition are
listed below:
a) Requirements for certification of manufacturer have been deleted;
b) Classification levels and activities of manufacturers have been defined.
This series of European Standards EN 15085 “Railway applications - Welding of railway vehicles and
components” consists of the following parts:
— Part 1: General;
— Part 2: Requirements for welding manufacturers;
— Part 3: Design requirements;
— Part 4: Production requirements;
— Part 5: Inspection, testing and documentation;
— Part 6: Maintenance welding requirements.
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.
Introduction
Welding is a special process in the manufacture of railway vehicles and their parts.
The general requirements for welding process control are defined in the EN ISO 3834 and EN ISO 14554
series of standards. The EN 15085 series of standards supplements those requirements and defines
special requirements for the construction and maintenance of railway vehicles.
This document can also be used by internal and external parties, including accredited certification bodies,
to assess the organization's ability to meet customer, regulatory and the organization's own
requirements.
1 Scope
This document defines the classification levels for welded components, the types of activity typically
undertaken and the requirements to be fulfilled to demonstrate conformance.
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 15085-1, Railway applications - Welding of railway vehicles and components - Part 1: General
EN 15085-3, Railway applications - Welding of railway vehicles and components - Part 3: Design
requirements
EN 15085-4, Railway applications - Welding of railway vehicles and components - Part 4: Production
requirements
EN 15085-5, Railway applications - Welding of railway vehicles and components - Part 5: Inspection, testing
and documentation
EN 15085-6, Railway applications - Welding of railway vehicles and components - Part 6: Maintenance
welding requirements
EN ISO 3834 (all parts), Quality requirements for fusion welding of metallic materials
EN ISO 14554 (all parts), Quality requirements for welding - Resistance welding of metallic materials
EN ISO 14731:2019, Welding coordination - Tasks and responsibilities (ISO 14731:2019)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15085-1 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 https://www.iso.org/obp

Under preparation. Stage at the time of publication: prEN 15085-6.
3.1
safety relevance
description of the consequences of a failure of a welded component with respect to the effects on persons,
facilities and the environment
Note 1 to entry: The safety relevance of a welded component is distinguished as follows:
Low: Failure of the welded component does not lead to any direct impairment of the overall function.
Consequential events with personal injuries are unlikely
Medium: Failure of the welded component leads to an impairment of the overall function and/or may lead to
consequential events with personal injuries
High: Failure of the welded component leads to consequential events with personal injuries and breakdown
of the overall function
Note 2 to entry: Safety relevance assessment should be done according to EN 50126 series.
4 Classification levels and activities of manufacturers
4.1 Classification level
Manufacturers and the components they weld are classified in three levels depending on the safety
relevance of the welded component (see 3.1).
The classification levels are defined as follows:
CL 1 For welded railway vehicles and their welded components with high safety relevance.
CL 2 For welded components of railway vehicles with medium safety relevance. (Welded joints
with high safety category according to EN 15085-3 are not permitted)
CL 3 For welded components of railway vehicles with low safety relevance. (Welded joints with
high or medium safety category according to EN 15085-3 are not permitted)
Table 1 allocates the most common components of railway vehicles in classification levels.
Deviations from the classification given in Table 1 are permitted.
Deviations that result in a lower classification than the ones given in Table 1 shall be documented and
justified. The approach for safety relevance assessment given in the EN 50126 series of standards may be
used for this purpose.
Table 1 — Allocation of components to their classification level
CL Component
CL 1 New build, conversion and repair of rail vehicles and their components
Examples for components:
— bogies (headstocks, solebars, cross bearers, bogie frames);
— underframes of locomotives, passenger rolling stock and freight wagons (extensions,
solebars, cross bearers, bolsters, assembly);
— car bodies (end and side walls, roof, driver cabin, floor plate assembly, energy
absorption modules, anti-climbers);
— freight wagon assembly (e.g. floor plates of car transporters, load fixing elements);
— draw and buffing gear;
— supporting frames, brackets and tensioning straps for exterior equipment (e.g. tanks,
electrical, air-conditioning and compressed air containers);
— wheelset mountings, axleboxes, spring supports, shock absorbers, vibration dampers;
— brake equipment (magnetic track brake, brake rods, brake triangles, brake cylinders,
brake cross beams);
— supp
...