BS EN 62271-209-2007 High-voltage switchgear and controlgear - n nPart 209 Cable connections for ngas-insulated metal-enclosed switchgear for rated voltages nabove 52 kV - Fluid-fi.pdf

1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58P

2、art 209: Cable connections for gas-insulated metal-enclosed switchgear for rated voltages above 52 kV Fluid-filled and extruded insulation cables Fluid-filled and dry-type cable-terminationsICS 29.130.10High-voltage switchgear and controlgear BRITISH STANDARDBS EN 62271-209:2007BS EN 62271-209:2007L

3、icensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSIThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008ISBN 978 0 580 56712 4Amendments/corrigenda issued since publicationDat

4、e Commentsrequest to its secretary.This publication does not purport 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.National forewordThis British Standard is the

5、 UK implementation of EN 62271-209:2007. It is identical to IEC 62271-209:2007. It supersedes BS 6904:1987 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee PEL/17, Switchgear, controlgear, and HV-LV co-ordination, to Subcommittee PEL/17/1, High-voltage

6、switchgear and controlgear.A list of organizations represented on this committee can be obtained on EUROPEAN STANDARD EN 62271-209 NORME EUROPENNE EUROPISCHE NORM November 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches

7、 Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62271-209:2007 E ICS 29.130.10 English version High-voltage switchgear and contr

8、olgear - Part 209: Cable connections for gas-insulated metal-enclosed switchgear for rated voltages above 52 kV - Fluid-filled and extruded insulation cables - Fluid-filled and dry-type cable-terminations (IEC 62271-209:2007) Appareillage haute tension - Partie 209: Raccordement de cbles pour appare

9、illage sous enveloppe mtallique isolation gazeuse de tension assigne suprieure 52 kV - Cbles remplis dun fluide ou isolation extrude - Extrmit de cble sche ou remplie dun fluide (CEI 62271-209:2007) Hochspannungs-Schaltgerte und -Schaltanlagen - Teil 209: Kabelanschlsse fr gasisolierte metallgekapse

10、lte Schaltanlagen fr Bemessungsspannungen ber 52 kV - Kabel mit fluidgefllter und extrudierter Isolierung - Fluidgefllte und feststoffisolierte Kabelendverschlsse (IEC 62271-209:2007) This European Standard was approved by CENELEC on 2007-10-01. CENELEC members are bound to comply with the CEN/CENEL

11、EC 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 to the Central Secretariat or to any CE

12、NELEC 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 Secretariat has the same status as the official version

13、s. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, S

14、lovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSIEN 62271-209:2007 2 Foreword The text of document 17C/405/FDIS, future edition 1 of IEC 62271-209, prepared by SC 17C, High-voltage

15、 switchgear and controlgear assemblies, of IEC TC 17, Switchgear and controlgear, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62271-209 on 2007-10-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publicati

16、on of an identical national standard or by endorsement (dop) 2008-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-10-01 Annexes ZA and ZB have been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62271-209:20

17、07 was approved by CENELEC as a European Standard without any modification. _ Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSI 3 EN 62271-209:2007 CONTENTS 1 Scope 4 2 Normative references .4 3 Terms and definitions .5 4 Limits of supply 6 4.1 Gener

18、al .6 4.2 Over-voltage protection .6 5 Rating 6 5.1 General .6 5.2 Rated voltage 6 5.3 Rated insulation level 7 5.4 Rated normal current and temperature rise 7 5.5 Rated short-time and peak withstand currents and rated duration of short circuit7 5.6 Rated filling pressure of insulating gas in the ca

19、ble connection enclosure .7 6 Design and construction requirements 8 6.1 Pressure withstand requirements .8 6.2 Mechanical forces on cable-terminations8 7 Standard dimensions 9 7.1 Fluid-filled cable-terminations 9 7.2 Dry-type cable-terminations .9 7.3 Three-phase cable-termination enclosure.9 8 Te

20、sts9 8.1 General .9 8.2 Dielectric type tests of cable-terminations 10 8.2.1 General .10 8.2.2 Dielectric type test of cable-terminations in a single phase enclosure10 8.2.3 Dielectric type test of cable-termination in a three phase enclosure.10 8.3 Tests after cable system installation.10 9 Informa

21、tion to be given with enquiries, tenders and orders 11 10 Rules for transport, storage, erection, operation and maintenance.11 Annex ZA (normative) Normative references to international publications with their corresponding European publications16 Annex ZB (informative) A-deviations 17 Figure 1 Oper

22、ating pressure of the gas insulation in the cable connection enclosure .8 Figure 2 Fluid-filled cable connection assembly Typical arrangement .12 Figure 3 Fluid-filled cable connection Assembly dimensions.13 Figure 4 Dry-type cable connection assembly Typical arrangement 14 Figure 5 Dry-type cable c

23、onnection assembly Assembly dimensions 15 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSIEN 62271-209:2007 4 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 209: Cable connections for gas-insulated metal-enclosed switchgear for rated voltages above 52

24、 kV Fluid-filled and extruded insulation cables Fluid-filled and dry-type cable-terminations 1 Scope This standard covers the connection assembly of fluid-filled and extruded cables to gas-insulated metal enclosed switchgear (GIS), in single- or three-phase arrangements where the cable-terminations

25、are fluid-filled or dry type and there is a separating insulating barrier between the cable insulation and the gas insulation of the switchgear. The purpose of this standard is to establish electrical and mechanical interchangeability between cable-terminations and the gas-insulated metal-enclosed s

26、witchgear and to determine the limits of supply. It complements and amends, if necessary, the relevant IEC standards. For the purpose of this standard the term “switchgear“ is used for “gas-insulated metal enclosed switchgear“. It does not cover directly immersed cable terminations, as described in

27、CIGRE brochure 89. 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 latest edition of the referenced document (including any amendments) applies. IEC 600

28、38:1983, IEC standard voltages 1Amendment 1 (1994) Amendment 2 (1997) IEC 60141 (all parts), Tests on oil-filled and gas-pressure cables and their accessories IEC 60141-1:1993, Tests on oil-filled and gas-pressure cables and their accessories Part 1: Oil-filled, paper-insulated, metal-sheathed cable

29、s and accessories for alternating voltages up to and including 400 kV IEC 60141-2:1963, Tests on oil-filled and gas-pressure cables and their accessories Part 2: Internal gas-pressure cables and accessories for alternating voltages up to 275 kV IEC 60694:1996, Common specifications for high-voltage

30、switchgear and controlgear standards IEC 60840:2004, Power cables with extruded insulation and their accessories for rated voltages above 30 kV (Um= 36 kV) up to 150 kV (Um= 170 kV) Test methods and requirements 1There exists a consolidated version (2002) including Amendment 1 and 2. Licensed Copy:

31、Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSI 5 EN 62271-209:2007 IEC 62067:2001, Power cables with extruded insulation and their accessories for rated voltages above 150 kV (Um= 170 kV) up to 500 kV (Um= 550 kV) Test methods and requirements Amendment 1 (2006)

32、 IEC 62271-203:2003, High-voltage switchgear and controlgear Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV Report of CIGRE WG 23-10, ELECTRA 151, December 1993, Earthing of GIS An Application Guide CIGRE brochure 89: Accessories for HV Extruded Cables, CIGRE WG 21.

33、06, 1995, Chapter 2.1.5 Directly Immersed Metal Enclosed GIS Termination 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 cable-termination equipment fitted to the end of a cable to ensure electrical connection with other parts of the system a

34、nd to maintain the insulation up to the point of connection. Two types are described in this standard. 3.1.1 fluid-filled cable-termination cable-termination which comprises of a separating insulating barrier between the cable insulation and the gas insulation of switchgear. The cable-termination in

35、cludes an insulating fluid as part of the cable connection assembly. 3.1.2 dry-type cable-termination cable-termination which comprises an elastomeric electrical stress control component in intimate contact with a separating insulating barrier (insulator) between the cable insulation and the gas ins

36、ulation of the switchgear. The cable-termination does not require any insulating fluid. 3.2 main-circuit end terminal part of the main circuit of a gas-insulated metal enclosed switchgear forming part of the connection interface 3.3 cable connection enclosure part of the gas-insulated metal-enclosed

37、 switchgear which houses the cable-termination and the main-circuit end terminal 3.4 cable connection assembly combination of a cable-termination, a cable connection enclosure and a main-circuit end terminal, which mechanically and electrically connects the cable to the gas-insulated metal enclosed

38、switchgear Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSIEN 62271-209:2007 6 3.5 design pressure pressure used to determine the thickness of the enclosure and the components of the cable termination subjected to that pressure (according to IEC 622

39、71-203:2003) 3.6 fluid/insulating fluid the term “fluid“ means a liquid or a gas for insulation purposes 3.7 cable system a cable with installed accessories 4 Limits of supply 4.1 General The limits of supply of gas-insulated metal-enclosed switchgear and the cable-termination shall be in accordance

40、 with Figure 2 for fluid-filled cable terminations and Figure 4 for dry-type cable-terminations. 4.2 Over-voltage protection If a metallic earth connection between parts 6 or 11 and part 13 of Figure 2 for fluid-filled cable terminations and Figure 4 for dry-type cable-terminations is not feasible,

41、non-linear resistors (part 15) may be connected across the insulated junction to limit the voltage under transient conditions. The number and characteristics of the non-linear resistors shall be determined and supplied by the cable termination manufacturer, taking into consideration the requirements

42、 of the user and the switchgear manufacturer. For further details refer to report of CIGRE WG 23-10: ELECTRA 151, 1993. 5 Rating 5.1 General When dimensioning the cable connection assembly, the following rated values shall apply: a) the rated voltage; b) the number of phases in one enclosure; c) the

43、 rated insulation level; d) the rated normal current and temperature rise; e) the rated short-time and peak withstand currents; f) the rated duration of the short circuit. 5.2 Rated voltage The rated voltage for the equipment (Ur) of the cable connection is equal to the lowest of the values for the

44、cable and the gas-insulated metal-enclosed switchgear and shall be selected from the following standard values: 72,5 kV 100 kV 123 kV 145 kV 170 kV 245 kV 300 kV 362 kV 420 kV 550 kV For cables, the rated voltage Urcorresponds to the highest voltage for equipment Um. Licensed Copy: Wang Bin, ISO/EXC

45、HANGE CHINA STANDARDS, 15/05/2008 02:53, Uncontrolled Copy, (c) BSI 7 EN 62271-209:2007 5.3 Rated insulation level The rated insulation level for the cable connection assembly shall be selected from the values given in IEC 60038 (IEC standard voltages) as well as IEC 62271-203:2003. 5.4 Rated normal

46、 current and temperature rise The connection interface of the main circuit shown in Figures 2 and 3 for fluid-filled cable-terminations and Figures 4 and 5 for dry-type cable-terminations is applicable at rated normal currents up to 3 150 A. The normal current-carrying contact surfaces of the connec

47、tion interface shall be silver- or copper-coated or solid copper. For full interchangeability of the cable-termination, the connection interface shall be designed so that at a current equal to the cable rated current corresponding to a maximum temperature of 90 C, no heat transfer from the GIS main

48、circuit end terminal to the cable-termination will occur. NOTE As the maximum conductor temperature for cables is limited by the maximum operating temperature for the insulation, there are certain cable dielectrics which cannot withstand the maximum temperature specified for gas-insulated metal-encl

49、osed switchgear if there is heat transfer across the connection interface to the cable terminations. For cases when the design value of 90 C at rated normal current of the cable system cannot be achieved, the manufacturer of the switchgear should provide the necessary data on temperature rise of the main-circuit end terminal and of the insulating gas (SF6) as a function of current. 5.5 Rated short-time and peak withstand currents and rated durat