1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50525-2-21:2011Electric cables Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) Part 2-21: Cables for general applications Flexible cables w
2、ith crosslinked elastomeric insulationBS EN 50525-2-21:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50525-2-21:2011. It partially supersedes BS6500:2000 andBS7919:2001.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17,
3、Electric Cables - Low voltage.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64364 4ICS 2
4、9.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedBS EN 50525-2-21:2011 BRITISH STANDA
5、RDNational forewordThis British Standard is the UK implementation of EN50525-2-21:2011. It partially supersedes BS6500:2000 andBS7919:2001.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric Cables - Low voltage.A list of organizations represented on this
6、committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64364 4ICS 29.060.20Compliance with a British Standard cannot confer immunity fromlega
7、l obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedThis British Standard is the UK implementation of EN 50525-2-21:2011. In the UK, the BS EN 50525 series of sta
8、ndards contain complenullsnullpersession details. The tanullle nullelonull nullest snullmmarinulles the relationship nulletnulleen these standards:Part 1 together with Supersedes2-null1 BS nullnullnull-null:1nullnullnull2-null1, 2-null2 BS null00null: 200null2-11 nullin partnull, 2-12, 2-21 nullin p
9、artnull, 2-null1 BS null500:20002-11 nullin partnull, 2-21 nullin partnull, 2-51 nullin partnull, 2-nullnull, null-21 BS nullnull1null:20012-null1, 2-51 nullin partnull BS 6004:2000null-null1 BS 7211:19982-22, 2-null2, 2-null2, null-11, null-null1 NoneNOTE All British Standards will remain current u
10、ntil they are withdrawn on 31 December 2012. British Standards in bold are only partially supersedednull and new editions onull BS null00null and BS null211 will be introduced on 1 nullanuary 2013.National nullnnenull Nnull nullinformatinullenull nullinulles information on the orinullins and identin
11、ullcation of particnulllar canullle tnullpes.BS EN 50525-2-21:2011EUROPEAN STANDARD EN 50525-2-21 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung
12、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 50525-2-21:2011 E ICS 29.060.20 Supersedes HD 22.4 S4:2004, HD 22.10 S2:2007, HD 22.11 S2:2007, HD 22.12 S2:2007, HD 22.16
13、 S2:2007English version Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-21: Cables for general applications - Flexible cables with crosslinked elastomeric insulation Cbles lectriques - Cbles dnergie basse tension de tension assigne au plus
14、gale 450/750 V (U0/U) - Partie 2-21: Cbles pour applications gnrales - Cbles souples isols en matriau lastomre rticul Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) - Teil 2-21: Starkstromleitungen fr allgemeine Anwendungen - Flexible Leitungen mit vernetzter Elast
15、omer-Isolierung 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
16、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 responsi
17、bility 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, G
18、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50525-2-21:2011EN 50525-2-21:2011 - 2 - Foreword This European Standard was prepare
19、d 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 50525-2-21 on 2011-01-17. This document, which is one of a multipart series, supersedes HD 22.4 S4:2004, HD 22 10 S2:2007, HD 22.11 S2:2007, HD 22.12
20、S2:2007, HD 22.16 S2:2007. 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 ha
21、s 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 _ BS EN 50525-2-21:2011- 3 - EN 50525-2-21:2011 Contents Page 1 Scope 52
22、 Normative references . 53 Terms and definitions . 64 General purpose cables . 64.1 Ordinary duty cables H05RR-F . 64.2 Ordinary duty cables H05RN-F . 74.3 Heavy duty cables H07RN-F 84.4 Heavy duty multicore cables H07RN-F . 95 Water resistant cables 105.1 Heavy duty cables H07RN8-F 105.2 Heavy duty
23、 multicore cables H07RN8-F . 126 Heat resistant cables (90 C) . 136.1 Ordinary duty cables H05BB-F . 136.2 Heavy duty cables H07BB-F . 146.3 Ordinary duty cables H05BN4-F . 166.4 Heavy duty cables H07BN4-F. 166.5 Heavy duty multicore cables H07BN4-F . 187 Heat resistant cables TPU sheathed (90 C) .
24、197.1 Ordinary duty cables H05BQ-F . 197.2 Heavy duty cables H07BQ-F 208 Heat resistant EVA cables (110 C) - Ordinary duty cables H05GG-F and H05GGH2-F . 218.1 Construction . 218.2 Requirements . 22Annex A (normative) Tests for cables to EN 50525-2-21 23Annex B (normative) General data . 27Annex C (
25、normative) Requirements for compatibility test . 33C.1 Cables with a 60 C temperature rating . 33C.2 Cables with a 90 C temperature rating . 33C.3 Cables with a 110 C temperature rating . 34Annex D (normative) Water resistance test for H07RN8-F flexible cables Electrical test 35D.1 Voltage pre-test
26、on completed cables . 35D.2 Voltage test on completed cable at 50 C 35D.3 Insulation resistance test after pre-voltage test . 35Annex E (normative) Water resistance test for H07RN8-F flexible cables Mechanical properties of sheath after water immersion . 37E.1 General . 37E.2 Procedure . 37E.3 Requi
27、rements . 37Annex F (normative) Special national conditions . 39Bibliography . 40BS EN 50525-2-21:2011EN 50525-2-21:2011 - 4 - Tables Table A.1 60 C cables 23Table A.1 60 C cables (concluded) . 24Table A.2 90 C and 110 C cables . 25Table B.1 27Table B.2 28Table B.3 31Table B.4 32Table C.1 . 33Table
28、C.2 . 33Table C.3 . 34Table E.1 Requirements for tensile strength and elongation at break . 38BS EN 50525-2-21:2011- 5 - EN 50525-2-21:2011 1 Scope EN 50525-2-21 applies to flexible cables, insulated with crosslinked elastomeric compound, and sheathed with either crosslinked elastomeric compound or
29、thermoplastic polyurethane (TPU). The cables are of rated voltages U0/U up to and including 450/750 V. The cables are intended for a variety of applications where appliances or equipment, including heavy industrial equipment, require a flexible connection to the power supply. The maximum conductor o
30、perating temperatures for the cables in this standard are 60 C (R types), 90 C (B types) and 110 C (G types). The following particular cable types are included: - General purpose cables (RR and RN types); - Water-resistant cables (RN8 types); - General purpose cables (BB and BN4 types); - TPU sheath
31、ed cables (BQ types); - Heat resistant cables (GG types) NOTE HD 516 contains extensive guidance on the safe use of cables in this standard. This EN 50525-2-21 should be read in conjunction with EN 50525-1, which specifies general requirements. 2 Normative references The following referenced documen
32、ts 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 s
33、ub-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 applies. EN 50363-1 Insulating, sheathing and covering materials for low voltage energy cables - Part 1: Cross-linked elastomeric ins
34、ulating compounds EN 50363-2-1 Insulating, sheathing and covering materials for low voltage energy cables - Part 2-1: Cross-linked elastomeric sheathing compounds EN 50363-10-2 Insulating, sheathing and covering materials for low voltage energy cables - Part 10-2: Miscellaneous sheathing compounds -
35、 Thermoplastic polyurethane 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 E
36、N 60228 Conductors of insulated cables (IEC 60228) BS EN 50525-2-21:2011EN 50525-2-21:2011 - 6 - 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 (IE
37、C 60332-1-2) EN 60811-1-1 Insulating and sheathing materials of electric and optical cables - Common test methods - Part 1-1: General application - Measurement of thickness and overall dimensions - Tests for determining the mechanical properties (IEC 60811-1-1) EN 60811-1-2 Insulating and sheathing
38、materials of electric and optical cables - Common test methods - Part 1-2: General application - Thermal ageing methods (IEC 60811-1-2) 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
39、 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 General purpose cables 4.1 Ordinary duty cables H05RR-F 4.1.1 Construction 4.1.1.1 Conductor The conductor shall be class 5, according to EN 60228. 4.1.1.2 Sizes
40、of cable The sizes of cable shall be: - 2 and 5 core 0,75 mm2to 4 mm2; - 3 and 4 core 0,75 mm2to 6 mm2. 4.1.1.3 Insulation The insulation shall be a cross-linked elastomeric compound, Type EI 4 to EN 50363-1, applied around each conductor. 4.1.1.4 Assembly The cores shall be twisted together. NOTE 1
41、 A centre filler may be used. NOTE 2 A tape may be applied around the core assembly before application of the sheath. 4.1.1.5 Sheath The sheath shall be a cross-linked elastomeric compound of Type EM 3 to EN 50363-2-1. BS EN 50525-2-21:2011- 7 - EN 50525-2-21:2011 The sheath shall fill the spaces be
42、tween the cores. The colour of sheath is not specified. NOTE If black is used, the requirement in EN 50363-2-1 for EM 3 to have a minimum level of carbon black will apply. 4.1.1.6 Marking The cable shall be marked with the CENELEC code H05RR-F. The marking shall comply with Clause 6 of EN 50525-1. 4
43、.1.2 Requirements 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 Table A.1, column 6. The dimensions of the cables shall conform to Table B.1 for the relevant size. The requirements to b
44、e met for the compatibility test shall be as given in Table C.1. 4.2 Ordinary duty cables H05RN-F 4.2.1 Construction 4.2.1.1 Conductor The conductor shall be class 5, according to EN 60228. 4.2.1.2 Sizes of cable The sizes of cable shall be: - 2, 3 and 4 core 0,75 mm2and 1 mm2. 4.2.1.3 Insulation Th
45、e insulation shall be a cross-linked elastomeric compound, Type EI 4 to EN 50363-1, applied around each conductor. 4.2.1.4 Assembly The cores shall be twisted together. NOTE 1 A centre filler may be used. NOTE 2 A tape may be applied around the core assembly before application of the sheath. 4.2.1.5
46、 Sheath The sheath shall be a cross-linked elastomeric compound of Type EM 2 to EN 50363-2-1. The sheath shall fill the spaces between the cores. BS EN 50525-2-21:2011EN 50525-2-21:2011 - 8 - 4.2.1.6 Marking The cable shall be marked with the CENELEC code H05RN-F. The marking shall comply with Claus
47、e 6 of EN 50525-1. 4.2.2 Requirements 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 Table A.1, column 7. The dimensions of the cables shall conform to Table B.1 for the relevant size. T
48、he requirements to be met for the compatibility test shall be as given in Table C.1. 4.3 Heavy duty cables H07RN-F 4.3.1 Construction 4.3.1.1 Conductor The conductor shall be class 5, according to EN 60228. 4.3.1.2 Sizes of cable The sizes of cable shall be: - Single core 1,5 mm2to 630 mm2; - 2 and
49、5 core 1,0 mm2to 95 mm2; - 3 and 4 core 1,0 mm2to 300 mm2. 4.3.1.3 Insulation The insulation shall be a cross-linked elastomeric compound, Type EI 4 to EN 50363-1, applied around each conductor. NOTE It is permitted to apply a tape on each core. Where the insulation is covered with a tape, it shall be applie
