Bsi bs en 62231 1 2016

BS EN 62231-1:2016 BSI Standards Publication Composite station post insulators for substations with AC voltages greater than 000 V up to 245 kV Part 1: Dimensional, mechanical and electrical characteristics BRITISH STANDARD BS EN 62231-1:2016 National foreword This British Standard is the UK implementation of EN 62231-1:2016 It is identical to IEC 62231-1:2015 The UK participation in its preparation was entrusted to Technical Committee PEL/36, Insulators for power systems 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 a contract Users are responsible for its correct application © The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 580 76609 ICS 29.080.10 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2016 Amendments/corrigenda issued since publication Date Text affected BS EN 62231-1:2016 EN 62231-1 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM January 2016 ICS 29.080.10 English Version Composite station post insulators for substations with AC voltages greater than 000 V up to 245 kV Part 1: Dimensional, mechanical and electrical characteristics (IEC 62231-1:2015) Supports isolants composites destinés aux postes courant alternatif de tensions supérieures 000 V jusqu'à 245 kV Partie 1: Caractéristiques dimensionnelles, mécaniques et électriques (IEC 62231-1:2015) Verbund-Stationsstützisolatoren für Unterwerke für Wechselspannungen grưßer 000 V bis einschlilich 245 kV - Teil 1: Maßliche, mechanische und elektrische Eigenschaften (IEC 62231-1:2015) This European Standard was approved by CENELEC on 2015-11-17 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 lists and bibliographical references concerning such national standards may be obtained on application to 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 Management 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, Ireland, 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 Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members Ref No EN 62231-1:2016 E BS EN 62231-1:2016 EN 62231-1:2016 European foreword The text of document 36/372/FDIS, future edition of IEC 62231-1, prepared by IEC/TC 36 "Insulators" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62231-1:2016 The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-08-17 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-11-17 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights Endorsement notice The text of the International Standard IEC 62231-1:2015 was approved by CENELEC as a European Standard without any modification In the official version, for Bibliography, the following note has to be added for the standard indicated : IEC 60060-1 NOTE Harmonized as EN 60060-1 BS EN 62231-1:2016 EN 62231-1:2016 Annex ZA (normative) Normative references to international publications with their corresponding European publications 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 referenced document (including any amendments) applies NOTE When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies NOTE Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu Publication Year Title EN/HD Year IEC/TS 60815-1 2008 Selection and dimensioning of highvoltage insulators intended for use in polluted conditions Part 1: Definitions, information and general principles - - IEC/TS 60815-3 - Selection and dimensioning of highvoltage insulators intended for use in polluted conditions Part 3: Polymer insulators for a.c systems - - IEC 62231 2006 Composite station post insulators for substations with a.c voltages greater than 000 V up to 245 kV - Definitions, test methods and acceptance criteria EN 62231 2006 –2– BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 CONTENTS FOREWORD Scope Normative references Terms and definitions Mechanical and dimensional characteristics Electrical characteristics Designation 7 Marking 8 Tolerances Metal fitting arrangements Bibliography 15 Table 1a – Designation and characteristics of composite station post insulators (ref IEC 60273 Table IV) for IEC 60815-1 class c Table 1b – Designation and characteristics of composite station post insulators (ref IEC 60273 Table IV) for IEC 60815-1 class d 11 Table – Designation and characteristics of composite station post insulators North American Practice / ANSI 13 BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 –3– INTERNATIONAL ELECTROTECHNICAL COMMISSION COMPOSITE STATION POST INSULATORS FOR SUBSTATIONS WITH AC VOLTAGES GREATER THAN 000 V UP TO 245 kV – Part 1: Dimensional, mechanical and electrical characteristics FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees) The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”) Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter 5) IEC itself does not provide any attestation of conformity Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity IEC is not responsible for any services carried out by independent certification bodies 6) All users should ensure that they have the latest edition of this publication 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications 8) Attention is drawn to the Normative references cited in this publication Use of the referenced publications is indispensable for the correct application of this publication 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights IEC shall not be held responsible for identifying any or all such patent rights International Standard IEC 62231-1 has been prepared by IEC technical committee 36: Insulators The text of this standard is based on the following documents: FDIS Report on voting 36/372/FDIS 36/373/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table This publication has been drafted in accordance with the ISO/IEC Directives, Part –4– BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 A list of all parts in the IEC 62231 series, published under the general title Composite station post insulators for substations with a.c voltages greater than 000 V up to 245 kV, can be found on the IEC website The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication At this date, the publication will be • reconfirmed, • withdrawn, • replaced by a revised edition, or ã amended BS EN 62231-1:2016 IEC 62231-1:2015 â IEC 2015 –5– COMPOSITE STATION POST INSULATORS FOR SUBSTATIONS WITH AC VOLTAGES GREATER THAN 000 V UP TO 245 kV – Part 1: Dimensional, mechanical and electrical characteristics Scope This part of IEC 62231 is applicable to composite station post insulators for substations with a.c voltages greater than 000 V up to 245 kV It also applies to composite station post insulators of similar design used in power stations of railway systems This part of IEC 62231 specifies main dimensions and values for mechanical and electrical characteristics of composite station post insulators NOTE The composite station post insulators covered by this standard are primarily intended for outdoor service, but can also be used indoor 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 referenced document (including any amendments) applies IEC 60815-1:2008, Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 1: Definitions, information and general principles IEC 60815-3, Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 3: Polymer insulators for a.c systems IEC 62231:2006, Composite station post insulators for substations with a.c voltages greater than 000 V up to 245 kV – Definitions, test methods and acceptance criteria Terms and definitions For the purposes of this document, the following terms and definitions apply 3.1 composite station post insulator post insulator consisting of a solid load bearing cylindrical insulating core, a housing and end fittings attached to the insulating core [SOURCE: IEC 62231:2006, 3.1] 3.2 creepage distance shortest distance or the sum of the shortest distances along the surface on an insulator between two conductive parts which normally have the operating voltage between them –6– BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 Note to entry: The surface of cement or of any other non-insulating jointing material is not considered as forming part of the creepage distance Note to entry: If a high resistance coating is applied to parts of the insulating part of an insulator, such parts are considered to be effective insulating surfaces and the distance over them is included in the creepage distance [SOURCE: IEC 60050-471:2007, 471-01-04] 3.3 end fitting integral component or formed part of an insulator, intended to connect it to a supporting structure, or to a conductor, or to an item of equipment, or to another insulator Note to entry: Where the end fitting is metallic, the term “metal fitting” is normally used [SOURCE: IEC 60050-471:2007, 471-01-06] 3.4 maximum design cantilever load MDCL cantilever load level above which damage to the insulator begins to occur and that should not be exceeded in service [SOURCE: IEC 62231:2006, 3.18] 3.5 specified cantilever load SCL cantilever load which can be withstood by the insulator when tested under the prescribed conditions [SOURCE: IEC 62231:2006, 3.17] 3.6 specified compression load SCoL compression load which can be withstood by the insulator when tested under the prescribed conditions [SOURCE: IEC 62231:2006, 3.25] 3.7 specified tension load STL tension load which can be withstood by the insulator when tested under the prescribed conditions [SOURCE: IEC 62231:2006, 3.21] 3.8 specified torsion load SToL torsion load level which can be withstood by the insulator when tested under the prescribed conditions [SOURCE: IEC 62231:2006, 3.19] BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 –7– 3.9 unified specific creepage distance USCD creepage distance of an insulator divided by the maximum operating voltage across the insulator (for a.c systems usually the highest voltage for equipment U m /√3) which is generally expressed in mm/kV and specified as a minimum value Note to entry: This definition differs from that of Specific Creepage Distance where the phase-to-phase value of the highest voltage for the equipment is used For phase-to-earth insulation, this definition will result in a value that is √3 times that given by the definition of Specific Creepage Distance in IEC 60815:1986 [SOURCE: IEC 60815-1:2008, 3.1.6, modified definition and Note to entry] Mechanical and dimensional characteristics Composite station post insulators are characterized by the following mechanical and dimensional characteristics, values of which are specified in Tables and 2: • maximum design cantilever load (MDCL) • specified cantilever load (SCL), • specified compression load (SCoL), • specified tension load (STL), • specified torsion load (SToL), • insulator height, • minimum creepage distance, • maximum diameter of insulating part, • metal fitting (end fitting) arrangement (see Clause 9) Tables 1a and 1b give a minimum creepage distance for each insulator along with the highest voltage for equipment based on a unified specific creepage distance (USCD) of 34,7 mm/kV or 43,3 mm/kV (phase-to-earth) This voltage is given for information only These USCD are regarded as a representative value of the medium (c) and heavy (d) pollution classes as defined in IEC 60815-1 Table gives similar information for insulators based on North American practice, with a USCD of 27,8 mm/kV corresponding to the light pollution class (b) Creepage distances different to those given in the Tables can also be considered for the insulators intended for use in various polluted conditions Further information on USCD and selection of the insulators for polluted conditions can be found in IEC 60815-1 and 60815-3 Electrical characteristics Composite station post insulators are characterized by the following electrical characteristics, values of which are specified in Tables and • dry lightning impulse withstand voltage, • wet power frequency withstand voltage Designation Composite station post insulators are designated in Tables 1a, 1b and as follows: • by the letters CSP or NCSP followed by a number indicating the dry lightning impulse withstand voltage in kilovolts; • then followed by the letter A or B, representing the pitch circle diameter of top and bottom metal fittings (A:76mm, B:127mm); –8– BS EN 62231-1:2016 IEC 62231-1:2015 â IEC 2015 ã and then followed by two numbers separated by a dash, which indicate the maximum design cantilever load (MDCL) in kilo Newtons with two digits and the minimum creepage distance in millimetres • For example, designation NCSP1050B-06-5030 stands for the composite station post insulator with a dry lightning impulse withstand voltage of 050 kV, a pitch circle diameter of 127 mm, a maximum design cantilever load of 0,6 kN and a minimum creepage distance of 030 mm NOTE Each designation of composite station post insulators means: CSP: Composite station post insulator NCSP: Composite station post insulator for North America practice Marking The composite station post insulator shall be marked in accordance with IEC 62231 Tolerances The dimensions of creepage distance and maximum diameter of insulating part given in Tables and are the absolute minima and maxima, respectively; hence no tolerances are applicable The tolerances of the insulator heights are given in Tables and Tolerances of parallelism, eccentricity, and angular deviation shall be in accordance with IEC 62231 The dimensions and tolerances of insulators supplied in compliance with this standard shall be shown on the manufacturer’s drawing Metal fitting arrangements The metal fitting arrangements shall be in accordance with Tables and Fixing holes shall be equally spaced on the appropriate pitch circle, which shall be concentric with the axis of the insulator Holes in top and bottom fittings shall be in line, unless otherwise specified, and they shall be so arranged as to permit the use of normal hexagon bolted heads and nuts 60 75 95 125 150 170 170 200 200 250 250 325 325 450 450 450 450 550 550 550 550 550 550 CSP95A-50-240 CSP125A-50-480 CSP150A-50-720 CSP170A-40-720 CSP170B-50-720 CSP200A-40-720 CSP200B-50-720 CSP250B-40-1040 CSP250B-50-1040 CSP325B-24-1450 CSP325B-32-1450 CSP450B-32-2460 CSP450B-64-2460 CSP450B-32-2900 CSP450B-32-2900 CSP550B-16-2460 CSP550B-50-2460 CSP550B-16-2900 CSP550B-50-2900 CSP550B-16-3400 CSP550B-50-3400 230 230 230 230 230 230 185 185 185 185 140 140 95 95 70 70 70 70 50 50 38 28 20 kV kV CSP75A-40-240 Wet power frequency withstand voltage Dry lightning impulse withstand voltage CSP60A-40-240 Designation 220±5 220±5 220±5 220±5 220±5 220±5 1020±5 1020±5 1020±5 1020±5 770±5 770±5 560±5 560±5 475±5 475±5 445±5 445±5 355±5 305±5 255±5 215±5 190±5 mm Insulator height 400 400 900 900 460 460 900 900 460 460 450 450 040 040 720 720 720 720 720 480 240 240 240 IEC 608151 Class c mm Minimum creepage distance 255 240 255 240 255 240 255 240 255 240 240 220 240 220 240 220 240 220 220 220 220 220 220 mm Maximum diameter of insulating part 5,0 1,6 5,0 1,6 5,0 1,6 3,2 3,2 6,4 3,2 3,2 2,4 5,0 4,0 5,0 4,0 5,0 4,0 5,0 5,0 5,0 4,0 4,0 kN Maximum design cantilever load 000 000 000 000 000 000 000 000 000 000 000 200 000 200 000 200 000 200 200 200 200 200 200 Nm Specified torsion load 90 50 90 50 90 50 100 60 100 60 110 30 45 45 45 45 45 45 45 45 45 45 45 kN Specified compressi on load 110 80 110 80 110 80 110 80 110 80 80 70 80 70 80 70 80 70 70 70 70 70 70 kN Specified tension load 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 76 127 76 76 76 76 76 76 Top mm 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 76 127 76 76 76 76 76 76 Bottom Metal fitting pitch circle diameter 170 170 145 145 123 123 145 145 123 123 72.5 72.5 52 52 36 36 36 36 36 24 12 12 12 kV Highest voltage for equipment based on 34,7 mm/ kV USCD Table 1a – Designation and characteristics of composite station post insulators (ref IEC 60273 Table IV) for IEC 60815-1 class c BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 –9– 650 650 650 650 750 750 750 750 750 750 850 850 850 950 CSP650B-80-2900 CSP650B-08-3400 CSP650B-50-3400 CSP650B-80-3400 CSP750B-08-3400 CSP750B-40-3400 CSP750B-50-3400 CSP750B-08-4900 CSP750B-40-4900 CSP750B-80-4900 CSP850B-08-4900 CSP850B-32-4900 CSP850B-80-4900 CSP950B-16-4900 360 360 360 360 325 325 325 325 325 325 275 275 275 275 275 275 100±5 900±5 900±5 900±5 700±5 700±5 700±5 700±5 700±5 700±5 500±5 500±5 500±5 500±5 500±5 500±5 mm Insulator height 900 900 900 900 900 900 900 400 400 400 400 400 400 900 900 900 IEC 608151 Class c mm Minimum creepage distance 290 290 255 240 290 255 240 290 255 240 290 255 240 290 255 240 mm Maximum diameter of insulating part 1,6 8,0 3,2 0,8 8,0 4,0 0,8 5,0 4,0 0,8 8,0 5,0 0,8 8,0 5,0 0,8 kN Maximum design cantilever load 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 Nm Specified torsion load 80 70 40 20 80 45 22 80 45 22 110 50 25 110 50 25 kN Specified compressi on load 110 110 110 80 110 110 80 110 110 80 110 110 80 110 110 80 kN Specified tension load 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 Top mm 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 Bottom Metal fitting pitch circle diameter In some cases an NOTE For applications where two different types of force may be applied to the insulator simultaneously, e.g a compressive and a cantilever load, the manufacturer’s combined load curve may be consulted to ensure suitability NOTE For applications where the deflection of the post under load is critical, refer to the manufacturer’s load deflection curve to ensure suitability insulator of higher strength rating may be selected to provide adequate rigidity 245 245 245 245 245 245 245 170 170 170 170 170 170 145 145 145 kV Highest voltage for equipment based on 34,7 mm/ kV USCD Specific requirements on acceptable deflection of composite station post insulators on the actual application shall be discussed between users and suppliers 650 NOTE 650 kV kV CSP650B-50-2900 Wet power frequency withstand voltage Dry lightning impulse withstand voltage CSP650B-08-2900 Designation – 10 – BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 250 325 325 450 450 450 450 550 550 550 550 550 550 CSP325B-24-1812 CSP325B-32-1812 CSP450B-32-3075 CSP450B-64-3075 CSP450B-32-3625 CSP450B-64-3625 CSP550B-16-3075 CSP550B-50-3075 CSP550B-16-3625 CSP550B-50-3625 CSP550B-16-4250 CSP550B-50-4250 200 CSP200A-40-900 CSP250B-50-1300 70 170 CSP170B-50-900 200 170 CSP170A-40-900 250 150 CSP150A-50-900 CSP200B-50-900 125 CSP125A-50-600 CSP250B-40-1300 70 95 CSP95A-50-300 230 230 230 230 230 230 185 185 185 185 140 140 95 95 70 70 50 50 38 28 75 CSP75A-40-240 20 kV kV 60 Wet power frequency withstand voltage Dry lightning impulse withstand voltage CSP60A-40-300 Designation 220±5 220±5 220±5 220±5 220±5 220±5 1020±5 1020±5 1020±5 1020±5 770±5 770±5 560±5 560±5 475±5 475±5 445±5 445±5 355±5 305±5 255±5 215±5 190±5 mm Insulator height 250 250 625 625 075 075 625 625 075 075 812 812 300 300 900 900 900 900 900 600 300 240 300 IEC 608151 Class d mm Minimum creepage distance 255 240 255 240 255 240 255 240 255 240 240 220 240 220 240 220 240 220 220 220 220 220 220 mm Maximum diameter of insulating part 5,0 1,6 5,0 1,6 5,0 1,6 6,4 3,2 6,4 3,2 3,2 2,4 5,0 4,0 5,0 4,0 5,0 4,0 5,0 5,0 5,0 4,0 4,0 kN Maximum design cantilever load 000 000 000 000 000 000 000 000 000 000 000 200 000 200 000 200 000 200 200 200 200 200 200 Nm Specified torsion load 90 50 90 50 90 50 100 60 100 60 110 30 45 45 45 45 45 45 45 45 45 45 45 kN Specified compressi on load 110 80 110 80 110 80 110 80 110 80 80 70 80 70 80 70 80 70 70 70 70 70 70 kN Specified tension load 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 76 127 76 76 76 76 76 76 Top mm 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 76 127 76 76 76 76 76 76 Bottom Metal fitting pitch circle diameter 170 170 145 145 123 123 145 145 123 123 72.5 72.5 52 52 36 36 36 36 36 24 12 12 12 kV Highest voltage for equipment based on 43,3 mm/ kV USCD Table 1b – Designation and characteristics of composite station post insulators (ref IEC 60273 Table IV) for IEC 60815-1 class d BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 – 11 – 650 650 650 650 750 750 750 750 750 750 850 850 850 950 CSP650B-80-3625 CSP650B-08-4250 CSP650B-50-4250 CSP650B-80-4250 CSP750B-08-4250 CSP750B-40-4250 CSP750B-50-4250 CSP750B-08-6125 CSP750B-40-6125 CSP750B-80-6125 CSP850B-08-6125 CSP850B-32-6125 CSP850B-80-6125 CSP950B-16-6125 360 360 360 360 325 325 325 325 325 325 275 275 275 275 275 275 100±5 900±5 900±5 900±5 700±5 700±5 700±5 700±5 700±5 700±5 500±5 500±5 500±5 500±5 500±5 500±5 mm Insulator height 125 125 125 125 125 125 125 250 250 250 250 250 250 625 625 625 IEC 608151 Class d mm Minimum creepage distance 290 290 255 240 290 255 240 290 255 290 240 255 240 290 255 240 mm Maximum diameter of insulating part 1,6 8,0 3,2 0,8 8,0 4,0 0,8 5,0 4,0 0,8 8,0 5,0 0,8 8,0 5,0 0,8 kN Maximum design cantilever load 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 Nm Specified torsion load 80 70 40 20 80 45 22 80 45 22 110 50 25 110 50 25 kN Specified compressi on load 110 110 110 80 110 110 80 110 110 80 110 110 80 110 110 80 kN Specified tension load 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 Top mm 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 Bottom Metal fitting pitch circle diameter 245 245 245 245 245 245 245 170 170 170 170 170 170 145 145 145 kV Highest voltage for equipment based on 43,3 mm/ kV USCD NOTE For applications where two different types of force may be applied to the insulator simultaneously, e.g a compressive and a cantilever load, the manufacturer’s combined load curve may be consulted to ensure suitability NOTE For applications where the deflection of the post under load is critical, refer to the manufacturer’s load deflection curve to ensure suitability In some cases an insulator of higher strength rating may be selected to provide adequate rigidity Specific requirements on acceptable deflection of composite station post insulators on the actual application shall be discussed between users and suppliers 650 NOTE 650 kV kV CSP650B-50-3625 Wet power frequency withstand voltage Dry lightning impulse withstand voltage CSP650B-08-3625 Designation – 12 – BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 95 110 110 150 150 200 200 250 250 350 350 350 550 550 650 650 NCSP95B-71-267 NCSP110A-36-274 NCSP110B-71-394 NCSP150A-36-610 NCSP150B-71-610 NCSP200A-36-864 NCSP200B-71-940 NCSP250A-36-1092 NCSP250B-71-1092 NCSP350A-27-1829 NCSP350B-27-1829 NCSP350B-36-1524 NCSP550B-30-2515 NCSP550B-46-2515 NCSP650B-25-2946 NCSP650B-39-2946 275 275 230 230 145 145 145 100 100 80 80 60 60 45 40 30 30 kV kV 95 Wet power frequency withstand voltage Dry lightning impulse withstand voltage NCSP95A-36-267 Designation 372±1,6 372±1,6 143±1,6 143±1,6 762±0,8 762±0,8 762±0,8 610±0,8 559±0,8 508±0,8 457±0,8 381±0,8 357±0,8 305±0,8 254±0,8 254±0,8 190±0,8 mm Insulator height 946 946 515 515 524 829 829 092 092 940 864 610 610 394 274 267 267 mm Minimum creepage distance 240 240 240 240 240 240 240 200 200 200 200 200 200 200 200 200 200 mm Maximum diameter of insulating part 3,9 2,5 4,6 3,0 3,6 2,7 2,7 7,1 3,6 7,1 3,6 7,1 3,6 7,1 3,6 7,1 3,6 kN Maximum design cantilever load 000 600 600 600 700 700 700 700 700 700 700 700 700 700 700 700 700 Nm Specified torsion load 77,8 77,8 77,8 77,8 77,8 71,2 71,2 71,2 44,5 71,2 44,5 71,2 44,5 71,2 37,8 71,2 31,1 kN Specified compressi on load 77,8 77,8 77,8 77,8 77,8 71,2 71,2 71,2 44,5 71,2 44,5 71,2 44,5 71,2 37,8 71,2 31,1 kN Specified tension load Table – Designation and characteristics of composite station post insulators North American Practice / ANSI 127 127 127 127 127 127 76 127 76 127 76 127 76 127 76 127 76 Top mm 127 127 127 127 127 127 76 127 76 127 76 127 76 127 76 127 76 Bottom Metal fitting pitch circle diameter 170 170 145 145 72.5 72.5 72.5 52 52 52 52 36 36 24 12 12 12 kV Highest voltage for equipment based on 27,8 mm/ kV USCD BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 – 13 – 900 900 050 050 NCSP900B-17-4191 NCSP900B-26-4191 NCSP1050B-14-5029 NCSP1050B-22-5029 455 455 385 385 315 337±3,2 337±3,2 032±3,2 032±3,2 575±2,4 575±2,4 mm Insulator height 029 029 191 191 353 353 mm Minimum creepage distance 240 240 240 240 240 240 mm Maximum diameter of insulating part 2,2 1,4 2,6 1,7 3,3 2,5 kN Maximum design cantilever load 000 000 000 000 000 000 Nm Specified torsion load 77,8 77,8 77,8 77,8 77,8 77,8 kN Specified compressi on load 77,8 77,8 77,8 77,8 77,8 77,8 kN Specified tension load 127 127 127 127 127 127 Top mm 127 127 127 127 127 127 Bottom Metal fitting pitch circle diameter 300 300 245 245 170 170 kV Highest voltage for equipment based on 27,8 mm/ kV USCD NOTE For applications where two different types of force may be applied to the insulator simultaneously, e.g a compressive and a cantilever load, the manufacturer’s combined load curve may be consulted to ensure suitability NOTE For applications where the deflection of the post under load is critical, refer to the manufacturer’s load deflection curve to ensure suitability In some cases an insulator of higher strength rating may be selected to provide adequate rigidity 750 NCSP750B-33-3353 315 kV kV 750 Wet power frequency withstand voltage Dry lightning impulse withstand voltage NCSP750B-25-3353 Designation – 14 – BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 BS EN 62231-1:2016 IEC 62231-1:2015 © IEC 2015 – 15 – Bibliography IEC 60050-471:2007, International Electrotechnical Vocabulary (IEV) – Part 471: Insulators IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements IEC TR 60815:1986, Guide for the selection of insulators in respect of polluted conditions _ This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization 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