kSIST FprEN 14730-2:2020

Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds

This European Standard specifies requirements for the;
-   approval of training facilities, testing and maintaining the skills of aluminothermic welders and welding trainers. It applies to those aluminothermic welding processes compliant with the requirements of EN 14730-1. It requires that the system for training and testing of welders shall be approved by the railway authority.
-   approval of aluminothermic welding contractors. It applies to those contractors using aluminothermic welding processes compliant with the requirements of EN 14730-1 and who employ welders in the possession of a valid permit to weld as defined in section 4 of this standard.
-   acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors approved by the railway authority. It does not cover any previous weld inspections by the welder or others.
The standard also applies to aluminothermic welds produced on Vignole railway rail 46 kg/m and above, as contained in EN 13674-1.

Bahnanwendungen - Oberbau - Aluminothermisches Schweiߟen von Schienen - Teil 2: Qualifizierung aluminothermischer Schweiߟer, Zertifizierung von Betrieben und Abnahme von Schweiߟungen

Diese Europäische Norm legt Anforderungen fest für:
— Zulassung von Ausbildungseinrichtungen, Prüfung und Erhaltung der Fähigkeiten von aluminothermischen Schweißern und Schweißausbilder. Sie gilt für aluminothermische Schweißverfahren entsprechend den Anforderungen der EN 14730-1. Sie verlangt, dass das System zur Ausbildung und Prüfung von Schweißern von der Eisenbahnbehörde zugelassen wird;
— Zulassung von aluminothermischen Schweißfachbetrieben. Sie gilt für Auftragnehmer, die aluminothermische Schweißverfahren entsprechend den Anforderungen der EN 14730-1 anwenden und Schweißer beschäftigen, die im Besitz einer gültigen Schweißerlaubnis im Sinne von Abschnitt 4 dieser Norm sind;
— Endabnahme der von der Eisenbahnbehörde genehmigten aluminothermischen Prüfungen und aluminothermischen Schweißüberwacher. Sie umfasst keine früheren Schweißprüfungen durch den Schweißer oder andere.)
Diese Norm bezieht sich auf aluminothermische Schweißungen an Vignolschienen mit einem Metergewicht ab 46 kg/m, wie in EN 13674-1 beschrieben.

Applications ferroviaires - Voie - Soudage des rails par aluminothermie - Partie 2 : Qualification des soudeurs par aluminothermie, agrément des entreprises et réception des soudures

Le présent document spécifie les exigences relatives à :
— l'agrément des établissements de formation, le test et le maintien des compétences des soudeurs et des formateurs en soudage par aluminothermie. Il s'applique aux procédés de soudage par aluminothermie satisfaisant aux exigences de l'EN 14730-1. Il nécessite l'approbation du système de formation et de test des soudeurs par l'autorité ferroviaire concernée ;
— l'agrément des entreprises de soudage par aluminothermie. Il s'applique aux entreprises qui utilisent des procédés de soudage par aluminothermie satisfaisant aux exigences de EN 14730-1 et qui emploient des soudeurs titulaires d'un permis de souder valide conformément à l'Article 4 ;
— la réception des vérifications finales des soudures par aluminothermie et des contrôleurs soudure par aluminothermie approuvés par l'autorité ferroviaire. Il ne couvre pas les vérifications des soudures antérieures réalisées par le soudeur ou d'autres personnes.
Le présent document s'applique au soudage par aluminothermie des rails Vignole de masse supérieure ou égale à 46 kg/m, conformément à l'EN 13674-1.

Železniške naprave - Zgornji ustroj proge - Aluminotermično varjenje tirnic - 2. del: Kvalifikacije varilcev, cerificiranje izvajalcev in prevzem zvarov

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 14730-2:2019
01-julij-2019

Železniške naprave - Zgornji ustroj proge - Aluminotermično varjenje tirnic - 2. del:

Kvalifikacije varilcev, cerificiranje izvajalcev in prevzem zvarov

Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of

aluminothermic welders, approval of contractors and acceptance of welds
Bahnanwendungen - Oberbau - Aluminothermisches Schweißen von Schienen - Teil 2:

Qualifizierung aluminothermischer Schweißer, Zertifizierung von Betrieben und Abnahme

von Schweißungen

Applications ferroviaires - Voie - Soudage des rails par aluminothermie - Partie 2 :

Qualification des soudeurs par aluminothermie, agrément des entreprises et réception

des soudures
Ta slovenski standard je istoveten z: prEN 14730-2
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
93.100 Gradnja železnic Construction of railways
oSIST prEN 14730-2:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 14730-2:2019
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oSIST prEN 14730-2:2019
DRAFT
EUROPEAN STANDARD
prEN 14730-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 25.160.01; 25.160.10; 93.100 Will supersede EN 14730-2:2006
English Version
Railway applications - Track - Aluminothermic welding of
rails - Part 2: Qualification of aluminothermic welders,
approval of contractors and acceptance of welds

Applications ferroviaires - Voie - Soudage des rails par Bahnanwendungen - Oberbau - Aluminothermisches

aluminothermie - Partie 2 : Qualification des soudeurs Schweiß¿en von Schienen - Teil 2: Qualifizierung

par aluminothermie, agrément des entreprises et aluminothermischer Schweiß¿er, Zertifizierung von

réception des soudures Betrieben und Abnahme von Schweiß¿ungen

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 256.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, 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 United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14730-2:2019 E

worldwide for CEN national Members.
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oSIST prEN 14730-2:2019
prEN 14730-2:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Qualification of aluminothermic trainers and welders .................................................................... 7

4.1 Training requirements .................................................................................................................................. 7

4.2 Duration of training ....................................................................................................................................... 7

4.3 Examination ...................................................................................................................................................... 7

4.4 Diploma............................................................................................................................................................... 8

4.5 Permit to Weld ................................................................................................................................................. 8

4.6 Welder identification ..................................................................................................................................... 9

4.7 Welder records ................................................................................................................................................ 9

5 Approval of Aluminothermic Welding Contractors ............................................................................ 9

5.1 General ................................................................................................................................................................ 9

5.2 Welding Quality Management System ..................................................................................................... 9

5.3 Welding Coordination ................................................................................................................................ 10

5.4 Aluminothermic Welders .......................................................................................................................... 10

5.5 Training ........................................................................................................................................................... 10

5.6 Equipment ...................................................................................................................................................... 10

5.7 Purchase, Management and Control of Consumables ..................................................................... 10

5.8 Weld Inspection ............................................................................................................................................ 10

5.9 Traceability .................................................................................................................................................... 10

5.10 Audits ................................................................................................................................................................ 11

6 Acceptance of Aluminothermic Welds .................................................................................................. 11

6.1 General ............................................................................................................................................................. 11

6.2 Weld Inspector .............................................................................................................................................. 11

6.3 Weld Inspection ............................................................................................................................................ 11

6.4 Geometric Requirements .......................................................................................................................... 11

6.5 Weld Integrity ................................................................................................................................................ 17

6.6 Documentation .............................................................................................................................................. 17

Annex A (Informative) Diploma in Aluminothermic Welding of Rails .................................................. 18

Annex B (Informative) Permit to Weld .............................................................................................................. 19

Annex C (normative) Check list ............................................................................................................................ 20

Bibliography ................................................................................................................................................................. 21

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oSIST prEN 14730-2:2019
prEN 14730-2:2019 (E)
European foreword

This document (prEN 14730-2:2019) has been prepared by Technical Committee CEN/TC 256 “Railway

applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14730-2:2006.

This document is the second part of the EN 14730 series which provides systems for the successful

delivery of aluminothermic welds in track.
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oSIST prEN 14730-2:2019
prEN 14730-2:2019 (E)
Introduction
This document (prEN 14730-2) has five main topics:
a) approval of welding trainers;
b) approval of welding training centres;
c) qualifications of aluminothermic welders;
d) approval of aluminothermic welding contractors;
e) acceptance of welds.

This part of EN 14730 has been occasioned by a European Directive that will permit the freedom of an

open European market. To enable this perception to become a reality, it is essential a standard is in

place that satisfies the needs of the infrastructure owners or custodians and reflects the production

capabilities of the manufacturers in technical and quality terms.
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oSIST prEN 14730-2:2019
prEN 14730-2:2019 (E)
1 Scope
This document specifies requirements for the:

— approval of training facilities, testing and maintaining the skills of aluminothermic welders and

welding trainers. It applies to those aluminothermic welding processes compliant with the

requirements of EN 14730-1. It requires that the system for training and testing of welders be

approved by the railway authority;

— approval of aluminothermic welding contractors. It applies to those contractors using

aluminothermic welding processes compliant with the requirements of EN 14730-1 and who

employ welders in the possession of a valid permit to weld as defined in Clause 4 of this standard;

— acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors

approved by the railway authority. It does not cover any previous weld inspections by the welder

or others.

This document also applies to aluminothermic welds produced on Vignole railway rail 46 kg/m and

above, as contained in EN 13674-1.
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 14730-1, Railway applications - Track - Aluminothermic welding of rails - Part 1: Approval of welding

processes

ISO 3834-2, Quality requirements for fusion welding of metallic materials — Part 2: Comprehensive

quality requirements
EN ISO 14731, Welding coordination - Tasks and responsibilities (ISO 14731)
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 http://www.iso.org/obp
3.1
aluminothermic welder

a welder trained in an approved training centre in accordance with Clause 3.7 and holds a permit to

weld in accordance with Clause 4.6
3.2
contractor

company approved by a railway authority to provide staff and equipment to execute the production of

aluminothermic welds

Note 1 to entry: This may include staff and machinery from within the railway authority

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oSIST prEN 14730-2:2019
prEN 14730-2:2019 (E)
3.3
employer
company that employs approved aluminothermic welders
3.4
process manual

manual produced by the process supplier, it identifies the consumables, equipment and operating

method to be followed for all steps of the critical welding parameters
Note 1 to entry: This manual is referred to and described in EN 14730-1
3.5
process supplier

company that provides an approved aluminothermic welding process and is approved by the railway

authority to supply consumables and tools for the execution of aluminothermic welds

Note 1 to entry: This process is accepted in accordance with EN 14730-1
3.6
railway authority

either the railway regulator or the owner of a railway infrastructure or the custodian with a delegated

responsibility for a railway infrastructure
3.7
training centre

welder training organisation or centre approved by the process supplier and by the railway authority

3.8
weld inspector
approved and authorised to carry out weld inspections by the railway authority
3.9
welding contractor/sub-contractor
company approved in accordance with section 5 of this standard
3.10
welding trainer

qualified and certified trainer approved by the process supplier and authorised by the railway authority

3.11
responsible welding coordinator
person responsible and competent to perform welding coordination
3.12
examiner

person qualified by the process supplier and the railway authority to examine knowledge and skills of a

welder
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oSIST prEN 14730-2:2019
prEN 14730-2:2019 (E)
4 Qualification of aluminothermic trainers and welders
4.1 Training requirements

The training and testing shall be conducted in a training centre. The process supplier shall provide the

process manual. The training shall be carried out in accordance with the supplier’s process manual. In

addition to the welding processes the initial training shall include as a minimum:

— basic safety items relating to the process;
— rail identification;
— gas equipment for preheating and cutting;
— abrasive wheels;
— portable powered plant;
— cause and effect of operating outside of the correct procedures;
— weld manufacture;
— basic weld profile grinding;
— visual weld inspection.
4.2 Duration of training
4.2.1 Initial training – no welding experience
The training course duration shall be a minimum of 4 weeks.
This applies to any individual that
...