1、BRITISH STANDARDBS EN 62271-209:2007High-voltage switchgear and controlgear 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-terminationsICS 29.130.10g49g50g3g38g50g51g60
2、g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 62271-209:2007This British Standard was published under the authority of the Standards Policy and Strategy Committ
3、ee on 29 February 2008 BSI 2008ISBN 978 0 580 56712 4National forewordThis British Standard is the 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 It supersedes BS 6904:1987 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee
4、 PEL/17, Switchgear, controlgear, and HV-LV co-ordination, to Subcommittee PEL/17/1, High-voltage switchgear and controlgear.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 necessary provisions of
5、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 CommentsEUROPEAN STANDARD EN 62271-209 NORME EUROPENNE EUROPISCHE NORM November 2007 CENELEC European Comm
6、ittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches 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
7、 members. Ref. No. EN 62271-209:2007 E ICS 29.130.10 English version High-voltage switchgear and controlgear - 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-termin
8、ations (IEC 62271-209:2007) Appareillage haute tension - Partie 209: Raccordement de cbles pour appareillage 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)
9、 Hochspannungs-Schaltgerte und -Schaltanlagen - Teil 209: Kabelanschlsse fr gasisolierte metallgekapselte Schaltanlagen fr Bemessungsspannungen ber 52 kV - Kabel mit fluidgefllter und extrudierter Isolierung - Fluidgefllte und feststoffisolierte Kabelendverschlsse (IEC 62271-209:2007) This European
10、Standard was approved by CENELEC on 2007-10-01. 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 lists and bibliographical references con
11、cerning 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 responsibility of a CENELEC member int
12、o 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, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Irela
13、nd, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 62271-209:2007 2 Foreword The text of document 17C/405/FDIS, future edition 1 of IEC 62271-209, prepared by SC 17C, High-volt
14、age 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 public
15、ation 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
16、:2007 was approved by CENELEC as a European Standard without any modification. _ 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 General .6 4.2 Over-voltage protection .6 5 Rating 6 5.1 General .6 5.2 Rated voltage 6 5.3 Rated insu
17、lation 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 cable connection enclosure .7 6 Design and construction requirements 8 6.1 Pressure withstand requi
18、rements .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 Tests9 8.1 General .9 8.2 Dielectric type tests of cable-terminations 10 8.2.1 General .10 8.2.2 Di
19、electric 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 Information to be given with enquiries, tenders and orders 11 10 Rules for transport, storage, erection,
20、 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 Operating pressure of the gas insulation in the cable connection enclosure .8 Figure 2 Fluid-filled c
21、able 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 connection assembly Assembly dimensions 15 EN 62271-209:2007 4 HIGH-VOLTAGE SWITCHGEAR AND CONTROL
22、GEAR 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 1 Scope This standard covers the connection assembly of fluid-filled and extruded cables to gas-insulat
23、ed metal enclosed switchgear (GIS), in single- or three-phase arrangements where the cable-terminations 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 electr
24、ical and mechanical interchangeability between cable-terminations and the gas-insulated metal-enclosed switchgear 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-insula
25、ted metal enclosed switchgear“. It does not cover directly immersed cable terminations, as described in 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 undat
26、ed references, the latest edition of the referenced document (including any amendments) applies. IEC 60038:1983, 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
27、 and gas-pressure cables and their accessories Part 1: Oil-filled, paper-insulated, metal-sheathed cables 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 a
28、ccessories for alternating voltages up to 275 kV IEC 60694:1996, Common specifications for high-voltage 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 a
29、nd requirements 1There exists a consolidated version (2002) including Amendment 1 and 2. 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 (2
30、006) 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
31、 21.06, 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 syst
32、em and 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-terminatio
33、n includes 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
34、 insulation 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-encl
35、osed 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 enclo
36、sed switchgear EN 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 62271-203:2003) 3.6 fluid/insulating fluid the term “fluid“ means a liquid or a gas for insulation
37、 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 with Figure 2 for fluid-filled cable terminations and Figure 4 for dry-type cable-terminations
38、. 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, non-linear resistors (part 15) may be connected across the insulated junction to limit the volt
39、age 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 of the user and the switchgear manufacturer. For further details refer to report of CIGRE WG 2
40、3-10: 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 rated insulation level; d) the rated normal current and temperature rise; e) the rated short-t
41、ime 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 cable and the gas-insulated metal-enclosed switchgear and shall be selected from the following
42、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. 7 EN 62271-209:2007 5.3 Rated insulation level The rated insulation level for the cable connection assembly shall be selected f
43、rom the values given in IEC 60038 (IEC standard voltages) as well as IEC 62271-203:2003. 5.4 Rated normal 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 appl
44、icable at rated normal currents up to 3 150 A. The normal current-carrying contact surfaces of the connection 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 th
45、e cable rated current corresponding to a maximum temperature of 90 C, no heat transfer from the GIS main 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 certai
46、n cable dielectrics which cannot withstand the maximum temperature specified for gas-insulated metal-enclosed 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
47、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 duration of short circuit Short-time and peak withs
48、tand currents as well as the duration of short circuit shall refer to the levels provided by the cable system, not exceeding the values given in IEC 60694. 5.6 Rated filling pressure of insulating gas in the cable connection enclosure If SF6is used as the insulating gas, the minimum functional press
49、ure for insulation pmeused to determine the design of the cable-termination insulation shall not exceed pme= 0,35 MPa (absolute) at 20 C for maximum rated voltages up to 300 kV. For maximum rated voltages exceeding 300 kV the minimum functional pressure for insulation pmeused to determine the design of the cable-termination insulation shall not exceed pme0,4 MPa (absolute) at 20 C. The rated filling pressure preof gas for insulating is assi
