EN 50525-2-81:2011
(Main)Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-81: Cables for general applications - Cables with crosslinked elastomeric covering for arc welding
Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-81: Cables for general applications - Cables with crosslinked elastomeric covering for arc welding
This European Standard applies to single core, crosslinked elastomer covered arc welding cables. The cables are of rated voltage U0/U 100/100 V. The cables are intended for connections between the welding power source and the electrode holder and the work piece. Two types of cable are included, with respectively Class D and Class E conductors. These conductors are more flexible than Class 6 to EN 60228, with Class E having the greater flexibility. The maximum conductor operating temperature for each of the cables in this standard is 85 °C. NOTE HD 516 contains extensive guidance on the safe use of cables in this standard, and gives specific current ratings and volt drop data. This EN 50525-2-81 should be read in conjunction with EN 50525-1, which specifies general requirements.
Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) - Teil 2-81: Starkstromleitungen für allgemeine Anwendungen - Lichtbogenschweißleitungen mit vernetzter Elastomer- Hülle
Câbles électriques - Câbles d’énergie basse tension de tension assignée au plus égale à 450/750 V (U0/U) - Partie 2-81: Câbles pour applications générales - Câbles pour soudage à l’arc isolés en matériau élastomère réticulé
Električni kabli - Nizkonapetostni energetski kabli z nazivno napetostjo do vključno 450/750 V (U0/U) - 2-81. del: Kabli za splošno uporabo - Kabli za obločno varjenje z zamreženo elastomerno prevleko
Ta evropski standard velja za enožilne kable za obločno varjenje z zamreženo elastomerno prevleko.
Ti kabli imajo nazivno napetost U0/U 100/100 V.
Kabli so primerni za povezave med virom napajanja za varjenje, držalom elektrode in obdelovancem.
Vključena sta dva tipa kablov s pretvorniki razreda D in razreda E v tem zaporedju. Ti pretvorniki so bolj fleksibilni kot pretvorniki razreda 6 iz EN 60228, pri čemer so najbolj fleksibilni pretvorniki razreda E.
Maksimalna delovna temperatura pretvornika za vsakega od kablov iz tega standarda je 85 °C.
OPOMBA: HD 516 vsebuje obsežno vodilo o varni uporabi kablov iz tega standarda ter podaja določene vrednosti toka in podatke o nižanju voltov.
Ta EN 50525-2-81 se mora brati skupaj z EN 50525-1, ki določa splošne zahteve.
General Information
- Status
- Published
- Publication Date
- 05-May-2011
- Withdrawal Date
- 16-Jan-2014
- Technical Committee
- CLC/TC 20 - Electric cables
- Drafting Committee
- CLC/TC 20 - Electric cables
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 23-Oct-2024
- Completion Date
- 20-Feb-2026
- Directive
- Not Harmonized2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)OJ Ref: C 256/01, C 348/03 OJ Date: 28-Nov-2013
Harmonized Standard2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limitsOJ Ref: C 249/03 OJ Date: 08-Jul-2016
Relations
- Effective Date
- 28-Jan-2023
- Effective Date
- 28-Jan-2023
- Effective Date
- 28-Jan-2023
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 03-Feb-2026
Overview
EN 50525-2-81:2011 specifies requirements for single core, low voltage electric cables with crosslinked elastomeric coverings, designed specifically for arc welding applications. Developed by the European Committee for Electrotechnical Standardization (CLC), this standard applies to flexible cables with a rated voltage of 100/100 V (U₀/U). Such cables are engineered for reliable connections between welding power sources, electrode holders, and workpieces. EN 50525-2-81 covers both Class D and the more highly flexible Class E conductors, conforming to use in demanding industrial and general welding environments.
Key Topics
- Scope: Applies to single core arc welding cables with crosslinked elastomer covers, suitable for rated voltages of 100/100 V.
- Cable Types: Includes both H01N2-D (normal flexibility) and H01N2-E (extra high flexibility) cable types.
- Conductor Requirements:
- Conductors must be made of copper and constructed for high or extra high flexibility, exceeding EN 60228 Class 6 performance.
- Available in cross-sectional areas from 10 mm² to 240 mm².
- Covering Materials:
- Elastomeric coverings are extruded in one or two layers, ensuring durability and thermal resistance up to 85°C.
- The materials used are specified to EN 50363-1 and EN 50363-2-2.
- Testing and Performance:
- Strict electrical and mechanical tests, including resistance, voltage withstand, flexibility, impact resistance at low temperatures, hot particle resistance, and flame propagation tests.
- Compliance with marking and identification requirements per EN 50525-1.
- Safety and Guidance:
- Reference to HD 516 for comprehensive guidance on installation, current ratings, and voltage drop data.
Applications
EN 50525-2-81:2011-compliant cables are essential in environments where arc welding is performed. Typical applications include:
- Industrial Welding: Used for connecting welding power generators to electrode holders and workpieces in manufacturing, automotive repair, shipbuilding, and structural steelwork.
- Workshops and Construction: Chosen for flexibility, durability, and safety in mobile or stationary welding stations.
- General Energy Transmission in Low Voltage Welding Circuits: Ensuring safe, reliable power delivery in temporary setups as well as permanent installations.
Use of these cables is critical for maintaining compliance with European safety and performance standards, reducing risk of failure or injury in welding operations.
Related Standards
For complete compliance and broader context, EN 50525-2-81 should be used in conjunction with the following standards:
- EN 50525-1: General requirements for low voltage cables up to 450/750 V, providing overarching criteria for design and performance.
- EN 60228: Specifies classes of conductors for flexibility and electrical properties.
- EN 50363-1 & EN 50363-2-2: Define material requirements for insulating and sheathing.
- EN 50395 & EN 50396: Cover test methods for electrical and non-electrical properties.
- EN 60332-1-2: Test methods for flame propagation.
- HD 516: Provides guidance on the use, installation, and safety considerations for harmonized cables.
EN 50525-2-81:2011 is the authoritative standard for arc welding cables with crosslinked elastomeric covering, ensuring cable reliability, flexibility, and safety in all low voltage welding installations. Compliance supports better performance, increased longevity, and adherence to best practices in electric cable applications across Europe.
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Frequently Asked Questions
EN 50525-2-81:2011 is a standard published by CLC. Its full title is "Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-81: Cables for general applications - Cables with crosslinked elastomeric covering for arc welding". This standard covers: This European Standard applies to single core, crosslinked elastomer covered arc welding cables. The cables are of rated voltage U0/U 100/100 V. The cables are intended for connections between the welding power source and the electrode holder and the work piece. Two types of cable are included, with respectively Class D and Class E conductors. These conductors are more flexible than Class 6 to EN 60228, with Class E having the greater flexibility. The maximum conductor operating temperature for each of the cables in this standard is 85 °C. NOTE HD 516 contains extensive guidance on the safe use of cables in this standard, and gives specific current ratings and volt drop data. This EN 50525-2-81 should be read in conjunction with EN 50525-1, which specifies general requirements.
This European Standard applies to single core, crosslinked elastomer covered arc welding cables. The cables are of rated voltage U0/U 100/100 V. The cables are intended for connections between the welding power source and the electrode holder and the work piece. Two types of cable are included, with respectively Class D and Class E conductors. These conductors are more flexible than Class 6 to EN 60228, with Class E having the greater flexibility. The maximum conductor operating temperature for each of the cables in this standard is 85 °C. NOTE HD 516 contains extensive guidance on the safe use of cables in this standard, and gives specific current ratings and volt drop data. This EN 50525-2-81 should be read in conjunction with EN 50525-1, which specifies general requirements.
EN 50525-2-81:2011 is classified under the following ICS (International Classification for Standards) categories: 29.060.20 - Cables. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 50525-2-81:2011 has the following relationships with other standards: It is inter standard links to HD 22.6 S2:1995/A1:1999, HD 22.6 S2:1995/A2:2004, HD 22.6 S2:1995, EN 1648-2:2018, EN 16282-3:2016, EN 16282-3:2016+A1:2021, EN 1648-1:2018, EN 16282-2:2016, EN 60335-1:2012/A13:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 50525-2-81:2011 is associated with the following European legislation: EU Directives/Regulations: 2006/95/EC, 2014/35/EU, 2014/53/EU. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 50525-2-81:2011 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2011
(OHNWULþQLNDEOL1L]NRQDSHWRVWQLHQHUJHWVNLNDEOL]QD]LYQRQDSHWRVWMRGR
YNOMXþQR988GHO.DEOL]DVSORãQRXSRUDER.DEOL]DREORþQR
YDUMHQMH]]DPUHåHQRHODVWRPHUQRSUHYOHNR
Electric cables - Low voltage energy cables of rated voltages up to and including 450/750
V (U0/U) - Part 2-81: Cables for general applications - Cables with crosslinked
elastomeric covering for arc welding
Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) -
Teil 2-81: Starkstromleitungen für allgemeine Anwendungen -
Lichtbogenschweißleitungen mit vernetzter Elastomer- Hülle
Câbles électriques - Câbles d’énergie basse tension de tension assignée au plus égale à
450/750 V (U0/U) - Partie 2-81: Câbles pour applications générales - Câbles pour
soudage à l’arc isolés en matériau élastomère réticulé
Ta slovenski standard je istoveten z: EN 50525-2-81:2011
ICS:
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 50525-2-81
NORME EUROPÉENNE
May 2011
EUROPÄISCHE NORM
ICS 29.060.20 Supersedes HD 22.6 S2:1995 + corr. Jun.1995 + A1:1999 + A2:2004
English version
Electric cables -
Low voltage energy cables of rated voltages up to and including 450/750 V
(U /U) -
Part 2-81: Cables for general applications -
Cables with crosslinked elastomeric covering for arc welding
Câbles électriques - Kabel und Leitungen -
Câbles d’énergie basse tension de tension Starkstromleitungen mit Nennspannungen
assignée au plus égale à 450/750 V bis 450/750 V (U /U) -
(U /U) -
Teil 2-81: Starkstromleitungen für
Partie 2-81: Câbles pour applications allgemeine Anwendungen -
générales - Lichtbogenschweißleitungen mit
Câbles pour soudage à l’arc isolés en vernetzter Elastomer- Hülle
matériau élastomère réticulé
This European Standard was approved by CENELEC on 2011-01-17. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50525-2-81:2011 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 20, Electric
cables.
The text of the draft was submitted to the formal vote and was accepted by CENELEC as
EN 50525-2-81 on 2011-01-17.
This document, which is one of a multipart series, supersedes HD 22.6 S2:1995 + A1:1999 +
A2:2004.
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any
or all such patent rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2012-01-17
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-01-17
____________
- 3 - EN 50525-2-81:2011
Contents
Page
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Arc welding cables – H01N2-D and H01N2-E . 5
4.1 Construction . 5
4.2 Requirements . 5
Annex A (normative) Tests for cables to EN 50525-2-81 . 7
Annex B (normative) General data . 8
Annex C (normative) Requirements for the voltage test on completed cables . 9
Annex D (normative) Requirements for the static flexibility test on completed cables . 10
Bibliography . 11
Tables
Table A.1 . 7
Table B.1 ― General data for Type H01N2-D . 8
Table B.2 ― General data for Type H01N2-E . 8
Table C.1 . 9
Table D.1 . 10
1 Scope
This European Standard applies to single core, crosslinked elastomer covered arc welding
cables.
The cables are of rated voltage U /U 100/100 V.
The cables are intended for connections between the welding power source and the electrode
holder and the work piece.
Two types of cable are included, with respectively Class D and Class E conductors. These
conductors are more flexible than Class 6 to EN 60228, with Class E having the greater
flexibility.
The maximum conductor operating temperature for each of the cables in this standard is
85 °C.
NOTE HD 516 contains extensive guidance on the safe use of cables in this standard, and gives specific current
ratings and volt drop data.
This EN 50525-2-81 should be read in conjunction with EN 50525-1, which specifies general
requirements.
2 Normative references
The following referenced documents are indispensable for the application 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.
NOTE One or more references to the standards below are in respect of a specific sub-division of that standard,
for instance a clause, a table, a class or a type. Cross-references to these standards are undated and, at all times,
the latest version shall apply.
EN 50363-1 Insulating, sheathing and covering materials for low voltage
energy cables − Part 1: Cross-linked elastomeric insulating
compounds
EN 50363-2-2 Insulating, sheathing and covering materials for low voltage
energy cabl
...




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