EN 50393-2006 en Test methods and requirements for accessories for use on distribution cables of rated voltage 0 6 1 0 (1 2) kV (Remains Current).pdf

1、BRITISH STANDARDBS EN 50393:2006Incorporating corrigendum April 2008Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kVICS 29.120.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40

2、g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50393:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 BSI 2008ISBN 978 0 580 61608 2National forewordThis British Standard is

3、the UK implementation of EN 50393:2006. It supersedes BS 7888-3:1998 which is withdrawn. Together with BS 7888-4.1:2006, BS 7888-4.2:2006 and BS EN 61442:2005 it supersedes BS 7888-1:1998 and BS 7888-2:1998 which are withdrawn. Together with BS 7933-1:2007 and BS 7933-2:2007 it supersedes BS 6910-1:

4、1988 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/11, Cable accessories.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not pu

5、rport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate Comments30 June 2008 Addition to supersession detailsEUR

6、OPEAN STANDARD EN 50393 NORME EUROPENNE EUROPISCHE NORM April 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC

7、- All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50393:2006 E ICS 29.120.20 Supersedes HD 623 S1:1996 + A1:2001English version Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kV M

8、thodes et prescriptions dessai pour les accessoires de cbles de distribution de tension assigne 0,6/1,0 (1,2) kV Prfverfahren und Prfanforderungen fr die Garnituren von Verteilerkabeln mit einer Nennspannung von 0,6/1,0 (1,2) kV This European Standard was approved by CENELEC on 2005-10-01. CENELEC m

9、embers 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 applic

10、ation 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 responsibility of a CENELEC member into its own language and notified to the Central Secretaria

11、t has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, N

12、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 50393:2006 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

13、CENELEC as EN 50393 on 2005-10-01. This European Standard supersedes HD 623 S1:1996 and its amendment A1:2001. This European Standard is the first revision of HD 623 S1:1996 and includes the first amendment A1:2001 and the changes proposed by the CLC/TC 20 WG 11, Harmonisation of joints, accessories

14、 and terminations of electric cables. CLC/TC 20, at its meeting in Stockholm (May 2002), agreed that HD 623 should be converted to an EN. This European Standard has been written as part of a series of standards to satisfy the Public Procurement Directive, and is complementary to HD 603, which covers

15、 cables rated at 0,6/1,0 (1,2) kV for use by distributors of electrical power. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2006-11-01 latest date by which the national sta

16、ndards conflicting with the EN have to be withdrawn (dow) 2008-10-01 _ BS EN 50393:2006 3 EN 50393:2006 Contents 1 Scope .5 2 Normative references .5 3 Definitions .6 4 Components7 4.1 Connectors7 4.2 Materials7 5 Electrical characteristics .7 5.1 Rated voltage 7 5.2 Current rating 8 6 Requirements8

17、 6.1 General8 6.2 Joints and stop ends .9 6.3 Transition joints .9 6.4 Packaging, marking and labelling, and information provided by manufacturer 9 7 Type tests 10 7.1 General10 7.2 Test samples.10 7.3 Sequence of tests .11 8 Test methods.15 8.1 General15 8.2 Impulse voltage withstand test at ambien

18、t temperature .16 8.3 AC voltage withstand test16 8.4 Insulation resistance test.17 8.5 Impact at ambient temperature .17 8.6 Heating cycle test18 8.7 Immersion test.19 8.8 Examination 20 8.9 Metallic screen short-circuit current withstand test .21 Annex A (informative) Determination of cable conduc

19、tor temperature . 30 BS EN 50393:2006EN 50393:2006 4 Figures Figure 1 Arrangement for the impact test at ambient temperature 22 Figure 2 Typical arrangement for the heating cycle in air23 Figure 3 Typical arrangement for the heating cycle for joints in water 23 Figure 4 Typical arrangement for the h

20、eating cycle for outdoor terminations in water24 Figure 5 Method of connection for the heating cycle test on a branch joint where the main cable conductor cross-section is greater than 50 mm and the branch cable conductor cross-section is less than or equal to 50 mm (example only).25 Figure 6 Method

21、 of connection of three phase cables for the heating cycle test on a straight joint (example only)26 Figure 7 Method of connection of three-phase main and branch cables of equal conductor cross-section for the heating cycle test on a branch joint (example only) .27 Figure 8 Method of connection of t

22、hree-phase main and branch cables of unequal conductor cross-section for the heating cycle test on a branch joint (example only) .28 Figure 9 Typical heating cycle29 Figure 10 Arrangement for the screen short-circuit test.29 Figure A.1 Arrangement for the cable calibration test .31 Figure A.2 Variat

23、ion of cwith stfor various heating currents 34 Tables Table 1 Maximum rated conductor temperatures .8 Table 2 Summary of compliance with different cable insulations .8 Table 3 Test sequence for joints for solid extruded dielectric insulated cables and for transition joints between solid extruded die

24、lectric insulated cables and impregnated paper insulated cables .11 Table 4 Test sequence for stop ends on solid extruded dielectric insulated cables.12 Table 5 Test sequence for outdoor terminations on solid extruded dielectric insulated cables .13 Table 6a Number of test samples and conductor cros

25、s-section: straight joints .14 Table 6b Number of test samples and conductor cross-section: branch joints 14 Table 6c Number of test samples and conductor cross-section: stop ends .14 Table 6d Number of test samples and conductor cross-section: outdoor terminations15 BS EN 50393:2006 5 EN 50393:2006

26、 1 Scope This European Standard details the performance requirements and the test methods for type tests for cable accessories for use on cables of rated voltage 0,6/1,0 (1,2) kV as defined in HD 603. Formerly, approvals for such products have been achieved on the basis of national standards and spe

27、cifications and/or the demonstration of satisfactory service performance. The publication of this European standard does not invalidate existing approvals. However, products approved to such earlier standards or specifications shall not claim approval to this European Standard unless specifically te

28、sted to it. After they have been successfully made, these tests need not be repeated unless changes are made in the cable accessory materials, design or manufacturing process which might affect the performance characteristics. Joints, stop ends and outdoor terminations for extruded solid dielectric

29、insulated cables and transition joints between extruded solid dielectric insulated and impregnated paper insulated cables are included. Joints, stop ends and outdoor terminations for impregnated paper insulated cables are not included. The service operating conditions of accessories shall be compati

30、ble with the service operating conditions of the cable. Accessories for special applications such as submarine cables, shipboard application or hazardous situations (explosive environments, fire resistant cables or seismic conditions) are not included. 2 Normative references The following referenced

31、 documents 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. EN 60228 Conductors of insulated cables EN 61180-1 High-voltage test tech

32、niques for low-voltage equipment Part 1: Definitions, test and procedures requirements EN 61238-1 Compression and mechanical connectors for power cables for rated voltages up to 36 kV (Um= 42 kV) Part 1: Test methods and requirements HD 603 Distribution cables of rated voltage 0,6/1 kV HD 631 series

33、 1)Electrical cables Accessories Material characterization IEC 60050-461 International Electrotechnical Vocabulary Chapter 461: Electric cables IEC 60055-2 Paper-insulated metal-sheathed cables for rated voltages up to 18/30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-

34、filled cables) Part 2: General and construction requirements IEC 60287 series Electric cables Calculation of the current rating 1)At draft stage. BS EN 50393:2006EN 50393:2006 6 3 Definitions For the purposes of this document, the following terms and definitions apply together with those given in IE

35、C 60050-461. 3.1 joint accessory suitable for use in air or underground which makes a connection between two or more insulated power cables to form a continuous circuit 3.1.1 type I joint joint where impact withstand, impulse voltage withstand and metallic screen short-circuit current withstand test

36、s are not required 3.1.2 type II joint joint tested for impact withstand but not for impulse voltage withstand or metallic screen short-circuit current withstand 3.1.3 type III joint joint tested for impulse voltage withstand and metallic screen short-circuit current withstand but not for impact wit

37、hstand 3.2 rigid joint 1) joint which incorporates a resin encapsulant capable of being poured or injected at ambient temperature and which cures to a solid state by an irreversible chemical reaction without the application of external heat or 2) joint which incorporates a non-setting encapsulant wi

38、thin a rigid housing 3.3 non-rigid joint joint which incorporates polymeric tapes, heat or cold-shrinkable components or pre-moulded parts without a rigid housing 3.4 transition joint accessory making a connection between cables having extruded solid dielectric insulation and impregnated paper insul

39、ation IEV 461-11-04 modified 3.5 stop end accessory providing a means of insulating an energised cable end IEV 461-10-07 modified 3.5.1 type I stop end stop end tested for impact withstand but not for impulse voltage withstand BS EN 50393:2006 7 EN 50393:2006 3.5.2 type II stop end stop end tested f

40、or impulse voltage withstand but not for impact withstand 3.6 cable crutch position at which the laid up cores of a multicore cable separate into individual cores 3.7 outdoor termination termination intended for use where it is directly exposed to either solar radiation or weathering or both IEV 461

41、-10-14 3.7.1 type I termination termination where impulse voltage withstand is not required 3.7.2 type II termination termination tested for impulse voltage withstand 3.8 type tests tests required before supplying a type of cable accessory covered by this European Standard, on a general commercial b

42、asis, in order to demonstrate satisfactory performance characteristics to meet the intended application. These tests are of such a nature that, after they have been successfully made, they need not be repeated unless changes are made in the cable accessory materials, design or type of manufacturing

43、process which might change the performance characteristics 4 Components 4.1 Connectors Connectors used within the accessory shall comply with EN 61238-1, where applicable, or with another relevant standard or specification. 4.2 Materials Component material characterization is not a pre-requirement f

44、or compliance with this performance standard. If material characterization is required, the relevant part of HD 631 shall be used. 5 Electrical characteristics 5.1 Rated voltage The rated voltage of the joints, stop ends and outdoor terminations shall be U0/U (Um) = 0,6/1,0 (1,2) kV where Uois the r

45、ated power frequency voltage between phase conductor and earth or metallic screen for which the cable accessory is designed; U is the rated power frequency voltage between phase conductors for which the cable accessory is designed; BS EN 50393:2006EN 50393:2006 8 Umis the maximum value of the “highe

46、st system voltage“ between phase conductors for which the cable accessory may be used. 5.2 Current rating The continuous current rating of a joint or outdoor termination shall be in accordance with the appropriate cable(s) specified in HD 603 and shall be suitable for operation at the temperatures s

47、tated in Table 1 for continuous duty and under short-circuit conditions. Table 1 Maximum rated conductor temperatures Insulation type Rating Extruded solid dielectric Impregnated paper Continuous a 80 C Short circuit a 160 C aFor cables with extruded insulation, the maximum rated temperatures for co

48、ntinuous duty and short circuit duty are given in the particular section of HD 603. In the absence of current ratings in HD 603, reference shall be made to IEC 60287, or to the cable manufacturer. 6 Requirements Joints, stop ends and outdoor terminations complying with this European Standard shall m

49、eet the following requirements. 6.1 General Compliance will be gained for a range of accessories of the same design and materials for a given cable type and for a range of conductor cross-sections (copper and aluminium), providing the appropriate samples have successfully undergone the appropriate test sequence in Table 3, 4 or 5. The range of compliance shall include the cable conductor cross-sections tested, together with the intermediate cross-sections. Any successful test sequence carried out on only