1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50525-2-72:2011Electric cables Low voltageenergy cables of rated voltagesup to and including 450/750 V(U0/U) -Part 2-72: Cables for general applications Flat divisible cabl
2、es (cords) withthermoplastic PVC insulationBS EN 50525-2-72:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50525-2-72:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric Cables - Low voltage.A list of organiz
3、ations 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 64371 2ICS 29.060.20Compliance with a British Standard cann
4、ot 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 50525-2-72:2011 BRITISH STANDARDNational forewordThis British Standard is the
5、 UK implementation of EN50525-2-72:2011.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 to include a
6、ll the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64371 2ICS 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and St
7、rategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedThis British Standard is the UK implementation of EN 50525-2-72:2011.In the UK, the BS EN 50525 series of standards nullontain nullomplenullsnullpersession details. The tanullle nullelonull nullest snullmmarin
8、ulles the relationship nulletnulleen these standards:Part 1 together with Supersedes2-null1 BS nullnullnull-null:1nullnullnull2-null1, 2-null2 BS null007: 200null2-11 nullin partnull, 2-12, 2-21 nullin partnull, 2-71 BS null500:20002-11 nullin partnull, 2-21 nullin partnull, 2-51 nullin partnull, 2-
9、nullnull, null-21 BS 7null1null:20012-null1, 2-51 nullin partnull BS 6004:2000null-null1 BS 7211:19982-22, 2-72, 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 supersedednull a
10、nd new editions onull BS null00null and BS null211 will be introduced on 1 nullanuary 2013.BS EN 50525-2-72:2011EUROPEAN STANDARD EN 50525-2-72 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Eur
11、opisches 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 50525-2-72:2011 E ICS 29.060.20 Supersedes HD 21.11 S1:1995 + A1:2001English
12、 version Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-72: Cables for general applications - Flat divisible cables (cords) with thermoplastic PVC insulation Cbles lectriques - Cbles dnergie basse tension de tension assigne au plus gale 45
13、0/750 V (U0/U) - Partie 2-72: Cbles pour applications gnrales - Cbles mplats sparables, isols en PVC thermoplastique Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) - Teil 2-72: Starkstromleitungen fr allgemeine Anwendungen - Trennbare Zwillingsleitung mit thermopla
14、stischer PVC-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 li
15、sts 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
16、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, F
17、rance, 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 50525-2-72:2011EN 50525-2-72:2011 - 2 - Foreword This European Standard was
18、 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 50525-2-72 on 2011-01-17. This document, which is one of a multipart series, supersedes HD 21.11 S1:1995 + A1:2001. Attention is drawn to the
19、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
20、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 50525-2-72:2011- 3 - EN 50525-2-72:2011 Contents Page 1 Scope 42 Normative references . 43 Terms and definitions . 54
21、 Flexible cables H03VH7H-F 54.1 Construction . 54.2 Requirements . 6Annex A (normative) Tests for cables to EN 50525-2-72 7Annex B (normative) General data . 8Bibliography . 9Figure Figure 1 Cross-sectional diagram of cable 5Tables Table A.1 7Table B.1 8BS EN 50525-2-72:2011EN 50525-2-72:2011 - 4 -
22、1 Scope This European Standard applies to thermoplastic (PVC) insulated flat divisible flexible cables. The cables are of rated voltage U0/U 300/300 V. The cables are intended for use indoors as internal wiring or direct supply connection to luminaires. The maximum conductor operating temperature fo
23、r the cables in this standard is 60 C. NOTE HD 516 contains extensive guidance on the safe use of cables in this standard. This EN 50525-2-72 should be read in conjunction with EN 50525-1, which specifies general requirements. 2 Normative references The following referenced documents are indispensab
24、le 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 tha
25、t 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 50363-3 Insulating, sheathing and covering materials for low voltage energy cables Part 3: PVC insulating compounds EN 50395 Electrical tes
26、t 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 6
27、0332-1-2 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 m
28、ethods Part 1-4: General application Tests at low temperature (IEC 60811-1-4) BS EN 50525-2-72:2011- 5 - EN 50525-2-72:2011 3 Terms and definitions For the purposes of this document the terms and definitions given in Clause 3 of EN 50525-1 apply. 4 Flexible cables H03VH7H-F 4.1 Construction 4.1.1 Co
29、nductor The conductor shall be class 5, according to EN 60228. 4.1.2 Size of cable The size of cable shall be two core, 0,5 mm2.4.1.3 Insulation The inner layer of insulation shall be PVC compound, Type TI 2 to EN 50363-3 applied around each conductor. The cores shall be laid parallel. The outer lay
30、er of insulation shall be PVC compound, Type TI 2 to EN 50363-3 applied around the cores. The outer layer of insulation shall be a contrasting colour to that of the inner layer. NOTE The outer layer may adhere to the cores. The cable shall be “divisible“ as shown in Figure 1. Key 1 divisible insulat
31、ion 2 conductor 3 insulation (inner layer) 4 insulation (outer layer) Figure 1 Cross-sectional diagram of cable BS EN 50525-2-72:2011- 5 - EN 50525-2-72:2011 3 Terms and definitions For the purposes of this document the terms and definitions given in Clause 3 of EN 50525-1 apply. 4 Flexible cables H
32、03VH7H-F 4.1 Construction 4.1.1 Conductor The conductor shall be class 5, according to EN 60228. 4.1.2 Size of cable The size of cable shall be two core, 0,5 mm2.4.1.3 Insulation The inner layer of insulation shall be PVC compound, Type TI 2 to EN 50363-3 applied around each conductor. The cores sha
33、ll be laid parallel. The outer layer of insulation shall be PVC compound, Type TI 2 to EN 50363-3 applied around the cores. The outer layer of insulation shall be a contrasting colour to that of the inner layer. NOTE The outer layer may adhere to the cores. The cable shall be “divisible“ as shown in
34、 Figure 1. Key 1 divisible insulation 2 conductor 3 insulation (inner layer) 4 insulation (outer layer) Figure 1 Cross-sectional diagram of cable BS EN 50525-2-72:2011EN 50525-2-72:2011 - 6 - 4.1.4 Marking The cable shall be marked with the CENELEC code H03VH7H-F. The marking shall comply with Claus
35、e 6 of EN 50525-1. 4.2 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 Annex A. The insulation thickness shall comply with the specified values given in columns 2, 3 and 7 of
36、 Table B.1. The thickness of the outer layer shall be measured after division of the cores. The dimensions of the cables shall be within the limits specified in columns 4 and 5 of Table B.1. The insulation resistance shall be measured on a divided element of the cable with both layers of insulation
37、in place. In addition to the requirements in A.5 of EN 50525-1 for separation of cores, the inner layer shall not be visible at the conclusion of the test. BS EN 50525-2-72:2011- 7 - EN 50525-2-72:2011 Annex A (normative) Tests for cables to EN 50525-2-72 Table A.1 1 2 3 4 5 Ref No. Tests aCategory
38、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 on completed cable at 2 000 V c T, S 50395 6 1.3 Insulation resistance at 70 C d T 50395 8.1 1.4 Long term resistance of insulation to d.c. d T 50395 9 1.5 Absence of fault
39、s in insulation R 50395 10 2 Constructional and dimensional tests 2.1 Checking of compliance with constructional provisions T, S 50525-1 Inspection and manual tests 2.2 Measurement of thickness of insulation e T, S 50396 4.1 2.4 Measurement of overall dimensions T, S 50396 4.4 3 Insulation material
40、tests T 50363-3 f- 4 Impact test at - 5 C g T 60811-1-4 8.5 5 Mechanical strength of completed cable 5.1 Flexing test followed, after immersion in water, by a voltage test at 2 000 V on cores T 50396 50395 6.2 7 5.2 Test of separation of cores T 50396 6.8 6 Test under fire conditions T 60332-1-2 - a
41、 The order given does not imply a sequence of testing. bParticular test conditions and requirements are given in Table 1 of EN 50525-1. cThis test is carried out with 5 m of the 20 m length being separated. dThis test is carried out on an element of the cable after division. e The minimum thickness
42、of each layer of insulation is not measured, but the minimum thickness of the dual-layer shall comply with the specified value. f This EN includes all the test methods and requirements for the material. Material to be tested is taken from the finished cable. gThis test is carried out with both layer
43、s of insulation treated as one. BS EN 50525-2-72:2011EN 50525-2-72:2011 - 8 - 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 5 6 7 Number and nominal cross-sectional area of conductors Thickness of insulation
44、 Mean overall dimensions Minimum insulation resistance at 70 C Minimum thickness at any point of complete insulation aInner layer Outer layer Lower limit Upper limit mm mm mm mm mm M.km mm 2 0,5 0,5 0,6 3,0 6,0 3,7 7,3 0,011 0,89 a Measured on section from divided cable. BS EN 50525-2-72:2011- 9 - E
45、N 50525-2-72:2011 Bibliography EN 60719 Calculation 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) HD 516 Guide to use of low voltage harmonized cables This page deliberately lef
46、t blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Chart
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