Date: 4 November 2008
Origin: European
Latest date for receipt of comments: 28 February 2009
Project no.: 2008/02798
Responsible committee: GEL/20/17 Low voltage cables Interested committees:
Title:
Draft BS EN 50525-2-21 Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V - Cables for general applications
Flexible cables with crosslinked elastomeric insulation
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Draft for Public Comment
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Introduction
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DRAFT
EUROPEAN STANDARD prEN 50525-2-21
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2008
CENELEC
European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC -  All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
ICS  Will supersede HD 22.4 S4:2004, HD 22.10 S2:2007, HD 22.11 S2:2007, HD 22.12 S2:2007,
HD 22.16 S2:2007
English version
Electric cables - Low voltage energy cables of rated voltages
up to and including 450/750 V -
Part 2-21: Cables for general applications -
Flexible cables with crosslinked elastomeric insulation
Câbles électriques -Câbles d’énergie basse tension de tension assignée au plus égale à 450/750 V -  Partie 2-21: Câbles pour applications générales -
Câbles souples isolés en matériau élastomère réticulé  Kabel und Leitungen -
Starkstromleitungen mit Nennspannungen bis 450/750 V -
Teil 2-21: Starkstromleitungen  für allgemeine Anwendungen -  Flexible Leitungen mit vernetzter Elastomer-Isolierung
This draft European Standard is submitted to CENELEC members for CENELEC enquiry. Deadline for CENELEC: 2009-03-27.
It has been drawn up by CLC/TC 20.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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, 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.
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.
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prEN 50525-2-21:2008 - 2 -
Foreword
1
2 This draft European Standard was prepared by the Technical Committee CENELEC TC 20, Electric
3 cables. It is submitted to the CENELEC enquiry. 4
5 This document, which is one of a multipart series, will supersede HD 22.4 S4:2004,
6 HD 22 10 S2:2007, HD 22.11 S2:2007, HD 22.12 S2:2007, HD 22.16 S2:2007.
7 _______________
8 9
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- 3 - prEN 50525-2-21:2008
Contents
10 Page
11 1 Scope (4)
12 2 Normative references ..................................................................................................... 4 13 3 Terms and definitions .................................................................................................... 5 14 4
General purpose cables ................................................................................................. 5 15    4.1 Ordinary duty cables – H05RR-F ............................................................................. 5 16    4.2 Ordinary duty cables – H05RN-F ............................................................................. 6 17    4.3 Heavy duty cables – H07RN-F ................................................................................ 7 18    4.4 Heavy duty multicore cables – H07RN-F ................................................................. 8 19 5
Water resistant cables ................................................................................................... 9 20    5.1 Heavy duty cables – H07RN8-F .............................................................................. 9 21    5.2 Heavy duty multicore cables – H07RN8-F ............................................................. 11 22 6
Heat resistant cables (90 °C) ....................................................................................... 12 23    6.1 Ordinary duty cables – H05BB-F (12)
24    6.2 Heavy duty cables – H07BB-F
............................................................................... 13 25    6.3 Ordinary duty cables – H05BN4-F .......
.................................................................. 15 26    6.4 Heavy duty cables – 15 27    6.5 Heavy duty multicore cables – H07BN4-F ............................................................. 17 28 7
Heat resistant cables – TPU sheathed  (90 °C) ........................................................... 18 29 7.1 Ordinary duty cables – H05BQ-F
........................................................................... 18 30 7.2 Heavy duty cables – H07BQ-F .............................................................................. 19 31 8
Heat resistant EVA cables (110 °C) (20)
32 8.1 Ordinary duty cables – H05GG-F and H05GGH2-F ............................................... 20 33 Annex A (normative) Tests for cables to EN 50525-2-21 .................................................... 22 34 Annex B (normative) General data ...................................................................................... 26 35 Annex C (normative) Requirements for compatibility test ................................................. 32 36 Annex D (normative) Water resistance test for H07RN8-F flexible cables – 37 Electrical test ...................................................................................................................... 34 38 Annex E (normative) Water resistance test for H07RN8-F flexible cables –
39 Mechanical properties of sheath after water immersion .................................................. 35 40 Annex F (normative) Special national conditions .. (37)
41 Bibliography ....................................................................................................................... 38 42 Tables
43 Table A.1 - 60 °C cables ....................................................................................................... 22 44 Table A.2 - 90 °C and 110 °C cables (24)
45 Table B.1 .............................................................................................................................. 26 46 Table B.2 .............................................................................................................................. 27 47 Table B.3 .............................................................................................................................. 30 48 Table B.4 .............................................................................................................................. 31 49 Table C.1 ............................................................................................................................. 32 50 Table C.2 ............................................................................................................................. 32 51 Table C.3 ............................................................................................................................. 33 52 Table E.1 - Requirements for tensile strength and elongation at break . (36)
53
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