1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50525-2-22:2011Electric cables Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) Part 2-22: Cables for general applications High flexibility
2、braided cables with crosslinked elastomeric insulationBS EN 50525-2-22:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50525-2-22:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric Cables - Low voltage.A list
3、 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 64365 1ICS 29.060.20Compliance with a British St
4、andard 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 50525-2-22:2011 BRITISH STANDARDNational forewordThis British Stan
5、dard is the UK implementation of EN50525-2-22:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric Cables - Low voltage.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport t
6、o include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64365 1ICS 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Po
7、licy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedThis British Standard is the UK implementation of EN 50525-2-22:2011.In the UK, the BS EN 50525 series of standards contain complenullsnullpersession details. The tanullle nullelonull nullest snullm
8、marinulles 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 partnull, 2-null1 BS null500:20002-11 nullin partnull, 2-21 nullin partnull, 2-51 nullin p
9、artnull, 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 until they are withdrawn on 31 December 2012. British Standards in bold are only partially
10、 supersedednull and new editions onull BS null00null and BS null211 will be introduced on 1 nullanuary 2013.BS EN 50525-2-22:2011EUROPEAN STANDARD EN 50525-2-22 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Ele
11、ctrotechnique Europisches Komitee fr 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 50525-2-22:2011 E ICS 29.060.20 Supersedes HD 22.14 S3:2007
12、 (partially)English version Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-22: Cables for general applications - High flexibility braided cables with crosslinked elastomeric insulation Cbles lectriques - Cbles dnergie basse tension de tens
13、ion assigne au plus gale 450/750 V (U0/U) - Partie 2-22: Cbles pour applications gnrales - Cbles sous tresse flexibilit leve isols en matriau lastomre rticul Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) - Teil 2-22: Starkstromleitungen fr allgemeine Anwendungen -
14、 Hochflexible umflochtene Leitungen mit vernetzter Elastomer-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 nationa
15、l 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 a
16、ny 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,
17、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. BS EN 50525-2-22:2011EN 50525-2-2
18、2:2011 - 2 - 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 approved by CENELEC as EN 50525-2-22 on 2011-01-17. This document, which is one of a multipart series, partially superse
19、des HD 22.14 S3:2007. 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 has to
20、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 50525-2-22:2011- 3 - EN 50525-2-22:2011 Contents Page 1 Scope 42 Norm
21、ative references . 43 Terms and definitions . 44 Flexible cables - H03RT-H . 44.1 Construction . 44.2 Requirements . 5Annex A (normative) Tests for cables to EN 50525-2-22 6Annex B (normative) . 7General data 7Annex C (normative) . 8Measurement of coverage by textile braid. 8C.1 Terms and definition
22、s 8C.2 Test methods 8Bibliography . 10Figures Figure C.1 Textile braid 9Tables Table A.1 6Table B.1 7BS EN 50525-2-22:2011EN 50525-2-22:2011 - 4 - 1 Scope EN 50525-2-22 applies to crosslinked EPR insulated and textile braided flexible cables. The cables are of rated voltage U0/U 300/300 V. The cable
23、s are intended for the connection of domestic appliances to the fixed supply, where an extra flexible connection is required. The maximum conductor operating temperature for the cables in this standard is 60 C. NOTE HD 516 contains extensive guidance on the safe use of cables in this standard. This
24、EN 50525-2-22 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 lates
25、t 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
26、, the latest version applies. EN 50363-1 Insulating, sheathing and covering materials for low voltage energy cables - Part 1: Cross-linked elastomeric insulating compounds EN 50395 Electrical test methods for low voltage energy cables EN 50396 Non electrical test methods for low voltage energy cable
27、s 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) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 50525-1,
28、 Clause 3 apply. 4 Flexible cables - H03RT-H 4.1 Construction 4.1.1 Conductor The conductor shall be class 6, according to EN 60228, except that the maximum resistance of conductors at 20 C shall be increased by 3 %. 4.1.2 Sizes of cable The sizes of cable shall be: - 0,75 mm2to 1,5 mm2 2 and 3 core
29、. BS EN 50525-2-22:2011- 5 - EN 50525-2-22:2011 4.1.3 Insulation The insulation shall be EPR compound of type EI 4 to EN 50363-1 applied around each conductor. 4.1.4 Fillers Fillers of textile material shall be incorporated into the cable. 4.1.5 Assembly The cores and textile fillers shall be twiste
30、d together. The maximum length of lay shall not exceed 7,5 times the diameter of the assembly of cores. The direction of lay shall be the same for the conductors and for the cores. NOTE A centre filler may be used. 4.1.6 Overall textile braid The assembly of cores and fillers shall be covered by a t
31、extile braid: Minimum number of threads: 60; Minimum crossings per metre: 700; Minimum number of carriers: 24. 4.1.7 Marking The cable shall be marked with the CENELEC code H03RT-H. The marking shall be printed on one of the cores, and shall comply with Clause 6 of EN 50525-1. 4.2 Requirements Each
32、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 requirement for length of lay shall be determined by measuring the length of ten pitches of a sample and dividing this length by 10
33、. The result is the length of lay of the laid-up cores. The dimensions of the cables shall conform to Table B.1 for the relevant size. BS EN 50525-2-22:2011EN 50525-2-22:2011 - 6 - Annex A (normative) Tests for cables to EN 50525-2-22 Table A.1 1 2 3 4 5 Ref. No. Tests a Category of test Test method
34、 described in EN (Sub)Clause 1 Electrical tests b 1.1 Resistance of conductors T,S 50395 5 1.2 Voltage test on completed cable at 2 000 V T,S 50395 6 1.3 Voltage test on cores at 2 000 V R 50395 7 1.4 Absence of faults on insulation R 50395 10 2 Provisions covering constructional and dimensional cha
35、racteristics 2.1 Checking of compliance with constructional provisions T,S 50525-1 Inspection and manual tests 2.2 Measurement of insulation thickness T,S 50396 4.1 2.3 Coverage by textile braid T,S This EN Annex C 2.4 Measurement of overall dimensions 2.4.1 - mean value T,S 50396 4.4 2.4.2 - ovalit
36、y T,S 50396 4.4 2.5 Solderability test (plain conductors) T 50396 8.2 3 Insulation material tests T 50363-1 c 4 Mechanical strength of completed cable 4.1 Three pulley flexing test T 50396 6.3 4.2 Kink test T 50396 6.5 4.3 Wear resistance test T 50396 6.6 5 Resistance to heat of textile braid T 5039
37、6 7.2 a The order given does not imply a sequence of testing. bParticular test conditions and requirements are given in Table 1 of EN 50525-1. c This EN includes all the test methods and requirements for the material. Material to be tested is taken from the finished cable. BS EN 50525-2-22:2011- 7 -
38、 EN 50525-2-22:2011 Annex B (normative) General data NOTE The overall dimensions of cables have been calculated in accordance with EN 60719. Table B.1 1 2 3 4 Number and nominal cross-sectional area of conductors Thickness of insulation Specified value Mean overall diameter Lower limit Upper limit m
39、m2mm mm mm 2 x 0,75 0,8 5,5 7,2 2 x 1 0,8 5,7 7,6 2 x 1,5 0,8 6,2 8,2 3 x 0,75 0,8 5,9 7,7 3 x 1 0,8 6,2 8,1 3 x 1,5 0,8 6,7 8,8 BS EN 50525-2-22:2011EN 50525-2-22:2011 - 8 - Annex C (normative) Measurement of coverage by textile braid C.1 Terms and definitions C.1.1 thread single textile unit which
40、, when combined with others, forms the braid of the cable C.1.2 carrier element for the winding of the threads NOTE Each carrier can contain several threads. C.1.3 crossing arrangement of all threads of the carriers in order to provide the braid coverage of the cable C.2 Test methods C.2.1 Number of
41、 threads The number of threads shall be calculated by adding up the number of threads in each carrier. C.2.2 Crossings per metre The sample of the cable to be tested shall be longitudinally placed, and marked with two reference points, 20 mm apart. The number of crossings (see Figure C.1) shall be m
42、easured and recorded. Three different evaluations shall be made. The average of them (each one referred to 1 000 mm) is the value of the crossings per metre. BS EN 50525-2-22:2011- 9 - EN 50525-2-22:2011 Figure C.1 Textile braid BS EN 50525-2-22:2011EN 50525-2-22:2011 - 10 - Bibliography EN 60719 Ca
43、lculation of the lower and upper limits for the average outer dimensions of cables with circular copper conductors and of rated voltages up to and including 450/750 V (IEC 60719) EN 60811-2-1 Insulating and sheathing materials of electric and optical cables - Common test methods - Part 2-1: Methods
44、specific to elastomeric compounds - Ozone resistance test, hot set test and mineral oil immersion tests (IEC 60811-2-1) HD 516 Guide to use of low voltage harmonized cables This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other stan
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