EN 50618-2014 en Electric cables for photovoltaic systems (BT(DE NOT)258).pdf

1、BSI Standards PublicationBS EN 50618:2014Electric cables for photovoltaic systems (BT(DE/NOT)258)Incorporating corrigendum February 2015BS EN 50618:2014National forewordThis British Standard is the UK implementation of EN 50618:2014.The UK participation in its preparation was entrusted by Technical

2、Committee GEL/20, Electric cables, to Subcommittee GEL/20/17, Electric Cables - Low voltage.BSI, as a member of CENELEC, is obliged to publish EN 50618:2014 as a British Standard. However, attention is drawn to the fact that during the development of this European Standard, the UK committee voted ag

3、ainst its approval as a European Standard.The main reasons for this negative vote are as follows: The scope includes statements about the lifetime of the cable in relationto maximum conductor temperature and the number of years of servicethat may be expected from the cable. While such a performanceo

4、bjective is supported, in the opinion of the UK committee the meansof determining such performance are insufficiently robust. Table B.1 requires the insulation and the sheath materials of the cableto undergo testing for thermal endurance, this being the principal basisfor the statements about lifeti

5、me expectation. These tests (to EN 60216)are complex, lengthy and specialized. They are of great use for researchpurposes and for materials development but, if they are to be used fortests on end products, it is necessary to define the sampling, the testtemperatures, the test durations and the failu

6、re criteria in greaterdetail than is given in EN 50618. The absence of detail givenin EN 50618 provides a high risk of variability of testing withinmanufacturers, suppliers, test laboratories and certifiers.The UK committee advise users to be aware of these concerns when applying this standard, part

7、icularly in the context of any expectation that a minimum lifetime of 25 years, under any and all exposure conditions, is somehow guaranteed.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 necessar

8、y provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 89682 8ICS 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was p

9、ublished under the authority of the Standards Policy and Strategy Committee on 28 February 2015.Amendments/corrigenda issued since publicationDate Text affected28 February 2015 Extra national foreword text insertedBRITISH STANDARDEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50618 December 20

10、14 ICS 29.060.20 English Version Electric cables for photovoltaic systems (BT(DE/NOT)258) Cbles lectriques pour systmes photovoltaques (BT(DE/NOT)258) Kabel und Leitungen - Leitungen fr Photovoltaik Systeme (BT(DE/NOT)258) This European Standard was approved by CENELEC on 2014-10-27. CENELEC members

11、 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 t

12、o the CEN-CENELEC Management Centre 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 CEN-CENELEC Man

13、agement Centre 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, I

14、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches

15、Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50618:2014 EBS EN 50618:2014Contents Page Foreword . 4 Introduction . 5 1 Sco

16、pe 6 2 Normative references 6 3 Terms and definitions . 7 4 Rated voltage . 8 5 Requirements for the construction of cables . 8 5.1 Conductors 8 5.2 Insulation 8 5.3 Sheath . 9 6 Marking . 10 6.1 General . 10 6.2 Indication of origin 10 6.3 Code designation 10 6.4 Nominal cross-sectional area of con

17、ductor . 10 6.5 Continuity of marking . 10 6.6 Use of the name CENELEC 10 6.7 Additional requirements . 11 7 Requirements for completed cables . 11 7.1 General . 11 7.2 Electrical tests . 11 7.3 Non electrical tests 12 Annex A (normative) Guide to use Use of cables for PV systems . 20 Annex B (norma

18、tive) Requirements for insulation and sheathing materials . 24 Annex C (normative) Cold impact test 26 Annex D (normative) Dynamic penetration test. 27 Annex E (normative) Weathering/UV resistance test 28 Bibliography 29 Figures Figure 1 Example of the marking as used on the outer sheath of the cabl

19、e . 10 Figure D.1 Arrangement for dynamic penetration test . 27 Tables Table 1 Dimensional and insulation resistance values 14 Table 2 Tests for cables to EN 50618 . 15 Table A.1 Intended use of cables for PV systems (environmental conditions) . 21 Table A.2 Recommended use of cables for PV systems

20、22 Table A.3 Current carrying capacity of PV cables . 22 EN 50618:2014BS EN 50618:2014Table A.4 Current rating conversion factors for different ambient temperatures. 23 Table B.1 Requirements for insulation and sheathing materials . 24 Table C.1 Parameters for cold impact test 26 EN 50618:2014BS EN

21、50618:2014Foreword This document (EN 50618:2014) has been prepared by CLC/TC 20 “Electric cables”. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-10-27 latest date

22、 by which the national standards conflicting with this document have to be withdrawn (dow) 2017-10-27 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rig

23、hts. This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). EN 50618:2014BS EN 50618:2014Introduction This standard specifies cables for use in Photovoltaic (PV) Systems, in particular for insta

24、llation at the Direct Current (d.c.) side. These cables are suitable for permanent outdoor use for many years under variable demanding climate conditions. Relatively stringent requirements are set for these products in line with the expected harsh usage conditions. During the writing of this standar

25、d the joint work of TC 64 (Electrical installations and protection against electric shock) and TC 82 (Solar Photovoltaic Energy Systems) on the design and installation of PV systems has been taken into account. EN 50618:2014BS EN 50618:20141 Scope This European Standard applies to low smoke halogen-

26、free, flexible, single-core power cables with cross-linked insulation and sheath. In particular for use at the direct current (d.c.) side of photovoltaic systems, with a nominal d.c. voltage of 1,5 kV between conductors and between conductor and earth. The cables are suitable to be used with Class I

27、I equipment. The cables are designed to operate at a normal maximum conductor temperature of 90 C, but for a maximum of 20 000 hours a max. conductor temperature of 120 C at a max. ambient temperature of 90 C is permitted. NOTE The expected period of use under normal usage conditions as specified in

28、 this standard is at least 25 years. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the ref

29、erenced document (including any amendments) applies. EN 50289-4-17, Communication cables Specifications for test methods Part 4-17: Test methods for UV resistance evaluation of the sheath of electrical and optical fibre cable EN 50395:2005, Electrical test methods for low voltage energy cables EN 50

30、396:2005, Non electrical test methods for low voltage energy cables EN 50525-1:2011, Electric cables Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) Part 1: General requirements EN 50565-1:2014, Electric cables Guide to use for cables with a rated voltage not exceedi

31、ng 450/750 V (U0/U) Part 1: General guidance EN 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state (IEC 60068-2-78) EN 60216-1, Electrical insulating materials Thermal endurance properties Part 1: Ageing procedures and evaluation of test results (IEC 60216-1) EN 602

32、16-2, Electrical insulating materials Thermal endurance properties Part 2: Determination of thermal endurance properties of electrical insulating materials Choice of test criteria (IEC 60216-2) EN 60228:2005, Conductors of insulated cables (IEC 60228:2004) EN 60332-1-2:2004, Tests on electric and op

33、tical 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 60332-1-2:2004) EN 60811-401, Electric and optical fibre cables Test methods for non-metallic materials Part 401: Miscellaneous tests Th

34、ermal ageing methods Ageing in an air oven (IEC 60811-401) EN 60811-403, Electric and optical fibre cables Test methods for non-metallic materials Part 403: Miscellaneous tests Ozone resistance test on cross-linked compounds (IEC 60811-403) EN 60811-404, Electric and optical fibre cables Test method

35、s for non-metallic materials Part 404: Miscellaneous tests Mineral oil immersion tests for sheaths (IEC 60811-404) EN 50618:2014BS EN 50618:2014EN 60811-501, Electric and optical fibre cables Test methods for non-metallic materials Part 501: Mechanical tests Tests for determining the mechanical prop

36、erties of insulating and sheathing compounds (IEC 60811-501) EN 60811-503, Electric and optical fibre cables Test methods for non-metallic materials Part 503: Mechanical tests - Shrinkage test for sheaths (IEC 60811-503) EN 60811-504, Electric and optical fibre cables Test methods for non-metallic m

37、aterials Part 504: Mechanical tests - Bending tests at low temperature for insulation and sheaths (IEC 60811-504) EN 60811-505, Electric and optical fibre cables Test methods for non-metallic materials Part 505: Mechanical tests - Elongation at low temperature for insulations and sheaths (IEC 60811-

38、505) EN 60811-506, Electric and optical fibre cables Test methods for non-metallic materials Part 506: Mechanical tests - Impact test at low temperature for insulations and sheaths (IEC 60811-506) EN 60811-507, Electric and optical fibre cables Test methods for non-metallic materials Part 507: Mecha

39、nical tests - Hot set test for cross-linked materials (IEC 60811-507) EN 61034-1, Measurement of smoke density of cables burning under defined conditions Part 1: Test apparatus (IEC 61034-1) EN 61034-2, Measurement of smoke density of cables burning under defined conditions Part 2: Test procedure an

40、d requirements (IEC 61034-2) EN 62230:2007, Electric cables Spark-test method (IEC 62230:2006) HD 60364-5-52:2011, Low-voltage electrical installations Part 5-52: Selection and erection of electrical equipment Wiring systems HD 60364-7-712, Electrical installations of buildings Part 7-712: Requireme

41、nts for special installations or locations Solar photovoltaic (PV) power supply systems (IEC 60364-7-712) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 type tests (T) tests required to be made before supplying a type of cable covered by thi

42、s standard on a general commercial basis, in order to demonstrate satisfactory performance characteristics to meet the intended application Note 1 to entry: Type tests are of such a nature that, after they have been made, they need not be repeated unless changes are made in the cable materials, desi

43、gn or type of manufacturing process which might change the performance characteristics. 3.2 sample tests (S) tests made on samples of completed cable, or components taken from a completed cable adequate to verify that the finished product meets the design specifications 3.3 routine tests (R) tests m

44、ade on all production cable lengths to demonstrate their integrity 3.4 halogen-free material material complying with the requirements of Annex B of EN 50525-1:2011 EN 50618:2014BS EN 50618:20144 Rated voltage The cables specified in this standard are in particular designed for use at the direct curr

45、ent (d.c.) side of photovoltaic-systems, with a nominal d.c. voltage of 1,5 kV between conductors as well as between conductor and earth. The cables have a rated voltage of 1,0/1,0 kV when used in alternating current (a.c.) systems. Annex A provides further guidance on voltage ratings. 5 Requirement

46、s for the construction of cables 5.1 Conductors 5.1.1 Material The conductors shall be copper, and in accordance with EN 60228. The wires of conductors shall be tin coated. The wires shall be covered with a continuous layer of tin coating. There shall be no visible gaps in the continuous layer, when

47、 examined with normal or corrected vision. 5.1.2 Construction The class of the conductor shall be class 5 in accordance with EN 60228. The maximum diameters of the wires in the conductor shall be in accordance with EN 60228. 5.1.3 Separator between conductor and insulation It is permitted to use a s

48、eparating tape between the conductor and the insulation. 5.1.4 Check of construction Compliance with the requirements of 5.1.1, 5.1.2 and 5.1.3, including the requirements of EN 60228, shall be checked by inspection and by measurement. 5.1.5 Electrical resistance The resistance of each conductor at

49、20 C shall be in accordance with the requirements of EN 60228 for a metal coated Class 5 conductor. Compliance shall be checked by the test given in Clause 5 of EN 50395:2005. 5.2 Insulation 5.2.1 Material The insulation material shall be cross-linked and fulfil the requirements as specified in Table B.1 in Annex B. 5.2.2 Application to the conductor The insulation shall be applied by extrusion, such that it fits closely on the conductor, but it shall be possi