1、BRITISH STANDARD BS EN 60433:1999 IEC 60433:1998 Insulators for overhead lines with a nominal voltage above 1 kV Ceramic insulators with a.c. systems Characteristics of insulator units of the long rod type The European Standard EN 60433:1998 has the status of a British Standard ICS 29.080.10BSEN6043
2、3:1999 This British Standard, having been prepared under the directionof the ElectrotechnicalSector Committee, was published underthe authority of the Standards Committee and comesinto effect on 15 February 1999 BSI 05-1999 ISBN 0 580 32093 6 National foreword This British Standard is the English la
3、nguage version of EN 60433:1998. It is identical with IEC 60433:1998. The UK participation in its preparation was entrusted by Technical Committee PEL/36, Insulators for power systems, to Subcommittee PEL/36/2, Line insulators, which has the responsibility to: aid enquirers to understand the text; p
4、resent to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee
5、 can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications may contai
6、n identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these interna
7、tional or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provision
8、s of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pa
9、ges 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN60433:1999 BSI 05-19
10、99 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 60433 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60433 October 1998 ICS 29.080.10 English version Insulators for overhead lines with a nominal voltage above1kV Ceramic insulators for a.c. systems Charact
11、eristics of insulator units of the long rod type (IEC 60433:1998) Isolateurs pour lignes ariennes de tension nominale suprieure 1 kV Isolateurs cramiques pour systmes courant alternatif Caractristiques des lments de chanes disolateurs ft long (CEI 60433:1998) Isolatoren fr Freileitungen mit einer Ne
12、nnspannung ber 1 kV Keramik-Isolatoren fr Wechselspannungssysteme Kenngren von Kettenisolatoren in Langstabausfhrung (IEC 60433:1998) This European Standard was approved by CENELEC on 1998-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
13、ions 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 CENELEC member. This European Standard exists in thr
14、ee 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 versions. CENELEC members are the national electrotechnic
15、al committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland .and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisa
16、tion Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60433:1998 EEN60433:1998 BSI 05-1999 2 Foreword The
17、 text of document 36B/180/FDIS, future edition3 of IEC60433, prepared by SC36B, Insulators for overhead lines, of IEC TC36, Insulators, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN60433 on 1998-10-01. The following dates were fixed: Annexes designated “normative”
18、are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC60433:1998 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 1 Scope 3 2 Nor
19、mative references 3 3 Definition 3 4 Characteristic 4 5 Designation and marking 4 Annex ZA (normative) Normative referencestointernational publicationswiththeircorresponding Europeanpublications Inside back cover Figure 1 Long rod insulator withclevis coupling, type C 6 Figure 2 Long rod insulator w
20、ith socket couplings, type B 6 Table 1 Specified values for long rod insulators 5 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1999-07-01 latest date by which the national standards conflicting with the E
21、N have to be withdrawn (dow) 2001-07-01EN60433:1998 BSI 05-1999 3 1 Scope This International Standard is applicable to string insulator units of the long rod type with insulating parts of ceramic material intended for use in a.c. overhead power lines with a nominal voltage greater than 1 000 V and a
22、 frequency not greater than 100 Hz. It is also applicable to insulators of similar design, used in substations. This standard is applicable to ceramic string insulator units of the long rod type, either with a clevis end fitting at both ends for coupling with a tongue, or with a socket end fitting a
23、t both ends for coupling with a pin ball. The object of this standard is to prescribe specified values for electrical and mechanical characteristics, and for the principal dimensions of ceramic string insulator units of the long rod type. This standard is applicable to string insulator units for use
24、 on overhead lines situated in lightly polluted areas, and the creepage distances given in Table 1 have been established accordingly, using the IEC60815 recommendation of 16 mm/kV for pollution level I. However, shorter creepage distances may be used in some non-polluted areas. If specific operating
25、 conditions require or allow non-standard (longer or shorter) creepage distances, the mechanical characteristics as well as the lengths L (see clause 4) of this standard should be used unless the need for exceptionally long creepage distances requires values of L greater than those given in Table 1.
26、 In the case of special requirements, e.g. very heavy polluted areas and for other particular or extreme environmental conditions, it may be necessary for certain dimensions to be changed. NOTE 1As far as reasonably applicable, this International Standard may also be applied to similar insulator uni
27、ts outside the scope of this standard, such as insulators for electric traction lines. NOTE 2This International Standard does not include tests on insulators and dimensions of end fittings. NOTE 3Ball and socket couplings are covered by IEC60120, clevis and tongue couplings by IEC60471. NOTE 4For th
28、e definition of pollution levels, see IEC60815. NOTE 5The term “ceramic” is used in this International Standard to refer to porcelain materials and, contrary to North American practice, does not include glasses. 2 Normative references The following normative documents contain provisions which, throu
29、gh reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibilit
30、y of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60071-1:1993, Insulation co-ordination Part1: Definitions, principles and rules. IEC 60120:1984, Dimensions of ball and socket
31、couplings of string insulator units. IEC 60383-1:1993, Insulators for overhead lines with a nominal voltage above 1 000 V Part1:Ceramic or glass insulator units for a.c. systems Definitions, test methods and acceptance criteria. IEC 60471:1977, Dimensions of clevis and tongue couplings of string ins
32、ulator units. IEC 60672-1:1995, Ceramic and glass insulating materials Part 1: Definitions and classification. IEC 60672-3:1997, Ceramic and glass insulating materials Part 3: Specification for individual materials. IEC 60815:1986, Guide for the selection of insulators in respect of polluted conditi
33、ons. 3 Definition For the purposes of this International Standard, the following definition applies: 3.1 long rod insulator suspension or tension insulator consisting of an approximately cylindrical insulating part provided with sheds and equipped at the ends with external metal fittings the insulat
34、or is designed in such a manner that the shortest puncture path through solid insulating material is at least equal to half the arcing distance. Therefore it is a class A insulator according to IEC60383-1EN60433:1998 4 BSI 05-1999 4 Characteristics String insulator units of the long rod type are cha
35、racterised by the following specified characteristics: the standard lightning impulse withstand voltage (see IEC60071-1); the wet power frequency withstand voltage (see IEC60071-1); the tensile mechanical failing load; the maximum nominal length L of the insulator; the maximum nominal diameter D of
36、the insulating part; the minimum nominal creepage distance; the standard coupling. The corresponding values are specified in Table 1. The minimum nominal creepage distances are based on a specific creepage distance of 16mm/kV for the lowest value of the highest voltage for equipment corresponding to
37、 the specified value of the standard lightning impulse withstand (in accordance with IEC60071-1). NOTE 1The tolerances given in IEC60383-1 are applicable to all the dimensions in Table 1, even if the adjectives “minimum” or “maximum” are used before the term “nominal”. NOTE 2Dry lightning impulse wi
38、thstand voltage and wet power frequency withstand voltage are specified in Table 1 for single unit string insulators. Values of withstand voltages of insulator strings consisting of more than one unit are not contained in this standard. NOTE 3The rod diameter is not specified since it depends on the
39、 mechanical characteristics of the insulating material. Information on the definition and classification of ceramic insulating materials can be found in IEC60672-1 and IEC60672-3. 5 Designation and marking Long rod insulators are designated in Table 1 by letter L, followed by a figure indicating the
40、 specified mechanical failing load in kilonewtons. Then follows the letters B or C indicating ball and socket or clevis and tongue coupling respectively, followed by the value of the lightning impulse withstand voltage in kilovolts. Example: L 160 B 550 indicates: The insulators shall be marked eith
41、er on the upper shed or on the metal parts with the name or trade mark of the manufacturer and the year of manufacture. In addition, each unit shall be marked with the specified mechanical failing load, by using the first part of the-designation; for instance, the insulator shall be marked L 160 for
42、 the units with160 kN specified mechanical failing load. These marking shall be legible and indelible. Figure 1 shows a long rod insulator with clevis couplings, Figure 2 shows a long rod insulator with socket couplings. L: long rod insulator; 160: specified mechanical failing load, tension,160 kN;
43、B: ball and socket coupling; 550: dry lightning impulse withstand voltage550 kV.EN 60433:1998 BSI 05-1999 5 Table 1 Specified values for long rod insulators Coupling B Coupling C Designation Standard lightning impulse withstand voltage Wet power frequency withstand voltage Specified mechanical faili
44、ng load Maximum nominal diameter D on the insulating part Minimum nominal creepage distance (16mm/kv, seeclause 4) Maximum nominal length L Standard coupling size (pin diameter, see IEC60120) Maximum nominal length L Standard coupling size (coupling pin diameter, see IEC 60471 non-preferred sizes in
45、 brackets) kV kV kN mm mm mm mm L 40 B/C 170 170 70 40 160 576 380 11 400 13L L 60 B/C 170 170 70 60 160 576 400 11 420 13L L 100 B/C 170 L 100 B/C 250 L 100 B/C 325 L 100 B/C 450 L 100 B/C 550 170 250 325 450 550 70 95 140 185 230 100 100 100 100 100 180 180 180 180 180 576 832 1 160 1 968 1 968 45
46、0 580 870 1 085 1 240 16 16 16 16 16 475 605 900 1 120 1 270 19L (16L) 19L (16L) 19L (16L) 19L (16L) 19L (16L) L 120 B/C 325 L 120 B/C 450 L 120 B/C 550 L 120 B/C 650 325 450 550 650 140 185 230 275 120 120 120 120 200 200 200 200 1 160 1 968 1 968 2 320 870 1 085 1 240 1 430 16 16 16 16 905 1 120 1
47、 275 1 465 19L (16L) 19L (16L) 19L (16L) 19L (16L) L 160 B/C 325 L 160 B/C 450 L 160 B/C 550 L 160 B/C 650 325 450 550 650 140 185 230 275 160 160 160 160 210 210 210 210 1 160 1 968 1 968 2 320 885 1 100 1 255 1 445 20 20 20 20 920 1 135 1 290 1 465 19L 19L 19L 19 L L 210 B/C 325 L 210 B/C 450 L 21
48、0 B/C 550 L 210 B/C 650 325 450 550 650 140 185 230 275 210 210 210 210 220 220 220 220 1 160 1 968 1 968 2 320 905 1 120 1 275 1 465 20 20 20 20 940 1 155 1 310 1 500 22L 22L 22L 22L L 250 B/C 550 L 250 B/C 650 550 650 230 275 250 250 230 230 1 968 2 320 1 305 1 500 24 24 1 335 1 530 22L 22L L 300
49、B/C 550 L 330 B/C 650 550 650 230 275 300 300 240 240 1 968 2 320 1 330 1 520 24 24 1 365 1 560 25L 25L L 330 B/C 550 L 330 B/C 650 550 650 230 275 330 330 250 250 1 968 2 320 1 360 1 550 28 28 1 400 1 595 28L 28L L 360 B/C 550 L 360 B/C 650 550 650 230 275 360 360 250 250 1 968 2 320 1 360 1 550 28 28 1 410 1 600 28L 28L L 400 B/C 550 L 400 B/C 650 550 650 230 275 400 400 260 260 1 968 2 320 1 400 1 600 28 28 1 460 1 660 28L 28L L 530 B/C 550 L 530 B/C 650 550 650 230 275 530 530 270 270 1 968 2 320
