Bsi bs en 50525 2 81 2011

raising standards worldwide™NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication Electric cables — Low voltage energy cables of rated voltages

raising standards worldwide™

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

BSI Standards Publication

Electric cables — Low voltage energy cables of rated voltages

up to and including 450/750 V

Part 2-81: Cables for general applications

— Cables with crosslinked elastomeric covering for arc welding

National foreword

This British Standard is the UK implementation of EN 50525-2-81:2011 It partially supersedes BS638-4:1996

The UK participation in its preparation was entrusted to Technical Committee GEL/20/17, Electric Cables - Low voltage

A list of organizations represented on this committee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

© BSI 2011 ISBN 978 0 580 64372 9 ICS 25.160.30; 29.060.20

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2011

Amendments issued since publication

Date Text affected

National foreword

This British Standard is the UK implementation of EN 50525-2-81:2011 It partially supersedes BS638-4:1996

The UK participation in its preparation was entrusted to Technical Committee GEL/20/17, Electric Cables - Low voltage

A list of organizations represented on this committee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

© BSI 2011 ISBN 978 0 580 64372 9 ICS 25.160.30; 29.060.20

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2011

Amendments issued since publication

Date Text affected

This British Standard is the UK implementation of EN 50525-2-81:2011

In the UK, the BS EN 50525 series of standards contain complex supersession details The table below best summarizes the relationship between these standards:

2-11 (in part), 2-12, 2-21 (in part), 2-71 BS 6500:2000 2-11 (in part), 2-21 (in part), 2-51 (in part), 2-83, 3-21 BS 7919:2001

NOTE  All British Standards will remain current until they are  withdrawn on 31 December 2012. British Standards in bold are only  partially superseded, and new editions of BS 6004 and BS 7211 will be  introduced on 1 January 2013.

National Annex NA (informative) gives information on the origins and identification of particular cable types

EN 50525-2-81

NORME EUROPÉENNE

EUROPÄISCHE NORM May 2011

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

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

(U0/U) -

Part 2-81: Cables for general applications - Cables with crosslinked elastomeric covering for arc welding

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

Kabel und Leitungen - Starkstromleitungen mit Nennspannungen

bis 450/750 V (U0/U) -

Teil 2-81: Starkstromleitungen für allgemeine Anwendungen - Lichtbogenschweißleitungen mit vernetzter Elastomer- Hülle

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

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

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 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

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 cables − Part 2-2: Cross-linked elastomeric covering compounds

EN 50395 Electrical test methods for low voltage energy cables

EN 50396 Non electrical test methods for low voltage energy cables

EN 50525-1 Electric cables − Low voltage energy cables of rated voltages up

to and including 450/750 V (U0/U) − Part 1: General requirements

EN 60228 Conductors of insulated cables (IEC 60228)

EN 60332-1-2 Tests on electric and optical fibre cables under fire conditions −

Part 1-2: Test for vertical flame propagation for a single insulated wire or cable − Procedure for 1 kW pre-mixed flame

(IEC 60332-1-2)

EN 60811-1-4 Insulating and sheathing materials of electric and optical cables −

Common test methods − Part 1-4: General application − Tests at low temperature (IEC 60811-1-4)

3 Terms and definitions

For the purposes of this document, the terms and definitions given in Clause 3 of EN 50525-1 apply

4 Arc welding cables – H01N2-D and H01N2-E

4.1 Construction

4.1.1 Conductor

The conductor shall be copper, and generally in accordance with class 6 to EN 60228, except that the maximum diameter of wires in a conductor shall comply with the requirements given in column 2 of Table B.1 for cables with normal flexibility, or of Table B.2 for cables with extra high flexibility

NOTE The individual wires of a conductor may be plain or tinned

A separator of suitable material shall be applied around the conductor

4.1.2 Size of cable

The cable shall consist of a single conductor in accordance with Table B.1 or Table B.2, in sizes from 10 mm2 to 240 mm2

4.1.3 Covering

The covering shall be applied by extrusion around the conductor and may consist of one or two layers

Covering in one layer shall be material type EM 5 to EN 50363-2-2

Covering in two layers shall comprise an outer layer of material type EM 5 to EN 50363-2-2 and an inner layer which shall be either of type EM 5 or of material type EI 7 to EN 50363-1 The ratio of the thicknesses of the two layers is not specified, but the minimum thickness of the outer layer shall not

be less than 0,6 mm

4.1.4 Marking

The cable shall be marked with the CENELEC code H01N2-D for cables with normal flexibility, or H01N2-E for cables with extra high flexibility In addition, the cross-sectional area of the conductor shall be marked The marking shall comply with Clause 6 of EN 50525-1

4.2 Requirements

4.2.1 General

Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular requirements of this Part

Testing shall be in accordance with Annex A

The conductor resistance shall not exceed the relevant value given in column 6 or 7 of Table B.1 or Table B.2 as appropriate

The thickness of the covering in one layer or the combined thickness of covering in the two layers shall comply with the specified value given in column 3 of either Table B.1 or Table B.2 as appropriate

The dimensions of the cables shall be within the limits specified in columns 4 and 5 of either Table B.1

or Table B.2 as appropriate

The requirements for the voltage test at 1 000 V on completed cables shall be in accordance with Annex C

The requirements for the static flexibility test on completed cables shall be in accordance with Annex D

4.2.2 Two-layer coverings

Samples for non-electrical tests on covering in two layers shall be prepared and tested in accordance with EN 50525-1, 5.7.2.3, c)

Full testing shall be carried out on both layers, except where the resulting sample from the inner layer

is below 0,8 mm thickness In this case full testing shall be carried out on the outer layer, but only the hot set test shall be carried out on the inner layer

Annex A

(normative)

Tests for cables to EN 50525-2-81

Table A.1

Ref

No Tests

a Category

of test Test method described in

EN (Sub)clause

1 Electrical tests b

1.1 Resistance of conductors T, S 50395 5

1.2 Voltage test at 1 000 V c T, S 50395 6

1.3 Absence of faults in covering R 50395 10.2

2 Constructional and dimensional

tests

2.1 Checking of compliance with

constructional provisions T, S 50525-1 and manual Inspection

tests 2.2 Measurement of thickness of covering T, S 50396 4.1

2.3 Measurement of overall diameter T, S 50396 4.4

3 Covering material tests d T 50363-1 and

50363-2-2 e

-

4 Static flexibility test T 50396 6.1

5 Impact test at - 20 °C T 60811-1-4 8.5

6 Test for resistance to hot particles T 50396 7.1

7 Test under fire conditions T 60332-1-2 -

a All tests are applicable to these cables The order given does not imply a sequence of

testing

b Particular test conditions and requirements are given in Table 1 of EN 50525-1

c See also Annex C

d See 4.2.2 of this EN 50525-2-81 in respect of tests and requirements for coverings in two

layers

e These ENs includes all the test methods and requirements for the material Material to be

tested is taken from the finished cable

Annex B

(normative)

General data

NOTE The overall dimensions of cables have been calculated in accordance with EN 60719

Table B.1 ― General data for Type H01N2-D

1 2 3 4 5 6 7 Nominal

cross-sectional area

of conductor

Maximum diameter of wires in conductor

Thickness

of covering Specified value

Mean overall diameter Maximum conductor resistance at 20 °C a

Lower limit Upper limit Tinned wires Untinned wires

10

16

25

35

50

70

95

120

150

185

240

0,21 0,21 0,21 0,21

0,21 0,21 0,21 0,51

0,51 0,51 0,51

2,0 2,0 2,0 2,0

2,2 2,4 2,6 2,8

3,0 3,2 3,4

7,7 8,8 10,1 11,4

13,2 15,3 17,1 19,2

21,1 23,1 25,8

9,7 11,0 12,7 14,2

16,5 19,2 21,4 24,0

26,4 28,9 32,1

1,95 1,24 0,795 0,565

0,393 0,277 0,210 0,164

0,132 0,108 0,081 7

1,91 1,21 0,780 0,554

0,386 0,272 0,206 0,161

0,129 0,106 0,080 1

a Conductor resistance is according to EN 60228 for class 6

Table B.2 ― General data for Type H01N2-E

1 2 3 4 5 6 7 Nominal

cross-sectional area

of conductor

Maximum diameter of wires in conductor

Thickness

of covering Specified value

Mean overall diameter Maximum conductor resistance at 20 °C a

Lower limit Upper limit Tinned wires Untinned wires

10

16

25

35

50

70

95

120

150

185

240

0,16 0,16 0,16 0,16

0,16 0,16 0,16 0,21

0,21 0,21 0,21

1,2 1,2 1,2 1,2

1,5 1,5 1,8 1,8

1,8 1,8 2,0

6,2 7,3 8,6 9,8

11,9 13,6 15,6 17,2

18,8 20,4 23,0

7,8 9,1 10,8 12,3

14,8 17,0 19,5 21,6

23,5 25,5 28,0

1,95 1,24 0,795 0,565

0,393 0,277 0,210 0,164

0,132 0,108 0,081 7

1,91 1,21 0,780 0,554

0,386 0,272 0,206 0,161

0,129 0,106 0,080 1

a Conductor resistance is according to EN 60228 for class 6

Annex C

(normative)

Requirements for the voltage test on completed cables

Table C.1

Unit Value Minimum length of

the sample m 20 Minimum period of

immersion in water h 1 Temperature of the

water °C 20 ± 5

Duration of each application of voltage, minimum

Result to be obtained No breakdown