SIST EN IEC 60433:2021
(Main)Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic insulators for AC systems - Characteristics of insulator units of the long rod type (IEC 60433:2021)
Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic insulators for AC systems - Characteristics of insulator units of the long rod type (IEC 60433:2021)
IEC 60433:2021 is applicable to string insulator units of the long rod type with insulating parts of ceramic material intended for use in AC overhead power lines with a nominal voltage greater than 1000 V and a frequency not greater than 100 Hz. It is also applicable to insulators of similar design, used in substations. This document 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 at both ends for coupling with a pin ball. The object of this document 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 fourth edition cancels and replaces the third edition published in 1998. This edition includes the following significant technical changes with respect to the previous edition:
- wording in Scope changed from "should" to "are intended to";
- new normative references added;
- title of Clause 4 amended, new Note 4 added;
- Table 1 expanded to include more specified mechanical failing loads.
Isolatoren für Freileitungen mit einer Nennspannung über 1 000 V - Keramische Isolatoren für Wechselstromsysteme - Kenngrößen von Kettenisolatoren in Langstabausführung (IEC 60433:2021)
Isolateurs pour lignes aériennes de tension nominale supérieure à 1 000 V - Isolateurs en céramique pour réseaux à tension alternative - caractéristiques des éléments d'isolateurs du type à long fût (IEC 60433:2021)
L'IEC 60433:2021 s'applique aux éléments de chaînes d'isolateurs du type à long fût ayant des parties isolantes en matière céramique destinés aux lignes aériennes fonctionnant en courant alternatif à une tension nominale supérieure à 1 000 V et à une fréquence au plus égale à 100 Hz. Elle s'applique également aux isolateurs du même type utilisés dans les postes. Le présent document s'applique aux éléments de chaînes d’isolateurs en céramique du type à long fût ayant à chaque extrémité soit une chape destinée à recevoir un tenon, soit un logement de rotule pour assemblage avec une tige à rotule. Le présent document a pour objet de prescrire des valeurs spécifiées pour les caractéristiques électriques et mécaniques et pour les principales dimensions des éléments de chaînes d'isolateurs en céramique du type à long fût. Cette quatrième édition annule et remplace la troisième édition parue en 1998. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- reformulation du domaine d'application: "il convient d’utiliser les caractéristiques mécaniques ainsi que les longueurs L (voir Article 4) de la présente norme " remplacé par "les caractéristiques mécaniques ainsi que les longueurs L (voir Article 4) de la présente norme sont prévues pour être utilisées";
- ajout de nouvelles références normatives;
- modification du titre de l'Article 4, ajout d'une nouvelle Note 4;
- Le Tableau 1 a été étoffé pour intégrer un plus grand nombre de charges de rupture mécanique spécifiées.
Izolatorji za nadzemne vode za nazivne napetosti nad 1000 V - Keramični izolatorji za izmenične sisteme - Karakteristike izolatorskih členov za paličaste izolatorje (IEC 60433:2021)
General Information
Relations
Overview - EN IEC 60433:2021 (Long rod ceramic insulators)
EN IEC 60433:2021 specifies the characteristics of ceramic string insulator units of the long rod type for AC overhead lines with a nominal voltage above 1 000 V and frequency up to 100 Hz. Published as the fourth edition in 2021, this CLC-adopted standard covers long rod insulators with either clevis or socket end fittings used on transmission lines and similar substation applications. The document prescribes the principal electrical and mechanical characteristics, maximum dimensions and minimum creepage distances for use primarily in lightly polluted environments.
Key topics and requirements
- Scope and applicability: Long rod, ceramic (porcelain) insulator units for AC overhead power lines >1 kV and ≤100 Hz; also applicable to similar designs in substations.
- Design types: Two coupling types-clevis (for tongue) and socket (for pin-ball).
- Electrical characteristics:
- Standard lightning impulse withstand voltage (referencing IEC 60071-1).
- Wet power-frequency withstand voltage.
- Mechanical characteristics:
- Specified tensile mechanical failing loads (expanded ranges in this edition).
- Maximum nominal length L and maximum nominal diameter D of the insulating part.
- Creepage distance guidance:
- Minimum nominal creepage distances based on a unified specific creepage of 27.8 mm/kV for SPS class (light pollution) per IEC TS 60815-2.
- Allows adjustments for non-polluted or heavily polluted sites, with note that exceptionally long creepage may require larger L.
- Designation and marking:
- Standard designation format: L [load kN] B/C [impulse kV] (example: L160 B550).
- Exclusions and notes:
- The standard does not include test procedures nor dimensions of end fittings.
- Rod diameter is not specified (depends on ceramic material properties).
Practical applications and users
Who uses EN IEC 60433:2021:
- Utility engineers specifying insulators for high-voltage overhead transmission lines.
- Insulator and porcelain manufacturers designing long rod units to meet European/CENELEC requirements.
- Procurement and specification writers preparing tender documents for transmission and substation equipment.
- Design consultants assessing creepage requirements for pollution severity and environmental conditions.
- Standards committees and conformity assessment bodies referencing harmonized electrical/mechanical parameters.
How it’s used:
- To define required mechanical failing load, impulse withstand voltages, and minimum creepage distance when selecting or specifying long rod ceramic insulators.
- To ensure interoperability with coupling standards (IEC 60120 for ball & socket; IEC 60471 for clevis/tongue).
Related standards (for further reference)
- IEC 60383-1 - Definitions, test methods and acceptance criteria for ceramic or glass insulators.
- IEC 60071-1 - Insulation coordination and impulse withstand voltages.
- IEC TS 60815-2 - Selection of insulators based on site pollution severity.
- IEC 60120, IEC 60471 - Coupling and fitting standards.
- IEC 60672-1 / IEC 60672-3 - Ceramic insulating material classification.
Keywords: EN IEC 60433:2021, long rod insulators, ceramic insulators, overhead lines, creepage distance, mechanical failing load, lightning impulse withstand voltage, clevis, socket.
Frequently Asked Questions
SIST EN IEC 60433:2021 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic insulators for AC systems - Characteristics of insulator units of the long rod type (IEC 60433:2021)". This standard covers: IEC 60433:2021 is applicable to string insulator units of the long rod type with insulating parts of ceramic material intended for use in AC overhead power lines with a nominal voltage greater than 1000 V and a frequency not greater than 100 Hz. It is also applicable to insulators of similar design, used in substations. This document 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 at both ends for coupling with a pin ball. The object of this document 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 fourth edition cancels and replaces the third edition published in 1998. This edition includes the following significant technical changes with respect to the previous edition: - wording in Scope changed from "should" to "are intended to"; - new normative references added; - title of Clause 4 amended, new Note 4 added; - Table 1 expanded to include more specified mechanical failing loads.
IEC 60433:2021 is applicable to string insulator units of the long rod type with insulating parts of ceramic material intended for use in AC overhead power lines with a nominal voltage greater than 1000 V and a frequency not greater than 100 Hz. It is also applicable to insulators of similar design, used in substations. This document 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 at both ends for coupling with a pin ball. The object of this document 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 fourth edition cancels and replaces the third edition published in 1998. This edition includes the following significant technical changes with respect to the previous edition: - wording in Scope changed from "should" to "are intended to"; - new normative references added; - title of Clause 4 amended, new Note 4 added; - Table 1 expanded to include more specified mechanical failing loads.
SIST EN IEC 60433:2021 is classified under the following ICS (International Classification for Standards) categories: 29.080.10 - Insulators; 29.240.20 - Power transmission and distribution lines. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 60433:2021 has the following relationships with other standards: It is inter standard links to SIST EN 60433:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN IEC 60433:2021 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2021
Nadomešča:
SIST EN 60433:2000
Izolatorji za nadzemne vode za nazivne napetosti nad 1000 V - Keramični izolatorji
za izmenične sisteme - Karakteristike izolatorskih členov za paličaste izolatorje
(IEC 60433:2021)
Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic insulators
for AC systems - Characteristics of insulator units of the long rod type (IEC 60433:2021)
Isolatoren für Freileitungen mit einer Nennspannung über 1 000 V - Keramische
Isolatoren für Wechselstromsysteme - Kenngrößen von Kettenisolatoren in
Langstabausführung (IEC 60433:2021)
Isolateurs pour lignes aériennes de tension nominale supérieure à 1 000 V - Isolateurs
en céramique pour réseaux à tension alternative - caractéristiques des éléments
d'isolateurs du type à long fût (IEC 60433:2021)
Ta slovenski standard je istoveten z: EN IEC 60433:2021
ICS:
29.080.10 Izolatorji Insulators
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60433
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 29.080.10; 29.240.20 Supersedes EN 60433:1998 and all of its amendments
and corrigenda (if any)
English Version
Insulators for overhead lines with a nominal voltage above
1 000 V - Ceramic insulators for AC systems - Characteristics of
insulator units of the long rod type
(IEC 60433:2021)
Isolateurs pour lignes aériennes de tension nominale Isolatoren für Freileitungen mit einer Nennspannung über
supérieure à 1 000 V - Isolateurs en céramique pour 1 000 V - Keramische Isolatoren für Wechselstromsysteme
réseaux à tension alternative - caractéristiques des - Kenngrößen von Kettenisolatoren in Langstabausführung
éléments d'isolateurs du type à long fût (IEC 60433:2021)
(IEC 60433:2021)
This European Standard was approved by CENELEC on 2021-02-16. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60433:2021 E
European foreword
The text of document 36/498/FDIS, future edition 4 of IEC 60433, prepared by IEC/TC 36 "Insulators"
was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-11-16
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-02-16
document have to be withdrawn
This document supersedes EN 60433:1998 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60433:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60071-1 NOTE Harmonized as EN IEC 60071-1
IEC 60120 NOTE Harmonized as EN IEC 60120
IEC 60471 NOTE Harmonized as EN IEC 60471
IEC 60672-1 NOTE Harmonized as EN 60672-1
IEC 60672-3 NOTE Harmonized as EN 60672-3
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 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 60383-1 - Insulators for overhead lines with a EN 60383-1 -
nominal voltage above 1000 V - Part 1:
Ceramic or glass insulator units for a.c.
systems - Definitions, test methods and
acceptance criteria
IEC 60433 ®
Edition 4.0 2021-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulators for overhead lines with a nominal voltage above 1 000 V – Ceramic
insulators for AC systems – Characteristics of insulator units of the long rod
type
Isolateurs pour lignes aériennes de tension nominale supérieure a 1 000 V –
Isolateurs en céramique pour réseaux à tension alternative – Caractéristiques
des éléments d'isolateurs du type a long fût
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.080.10; 29.240.20 ISBN 978-2-8322-9204-4
– 2 – IEC 60433:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Characteristics, dimensions and type of long rod insulators . 6
5 Designation and marking . 6
Bibliography . 11
Figure 1 – Long rod insulator with clevis couplings, type C . 10
Figure 2 – Long rod insulator with socket couplings, type B . 10
Table 1 – Specified values for long rod insulators . 8
IEC 60433:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATORS FOR OVERHEAD LINES
WITH A NOMINAL VOLTAGE ABOVE 1 000 V –
CERAMIC INSULATORS FOR AC SYSTEMS –
CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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 60433 has been prepared by IEC technical committee 36:
Insulators.
This fourth edition cancels and replaces the third edition published in 1998. This edition
constitutes a technical revision.
This edition inclu
...
The article discusses the SIST EN IEC 60433:2021 standard, which applies to ceramic insulators used in overhead power lines with a voltage above 1000 V and a frequency below 100 Hz. It also applies to similar insulators used in substations. The standard specifies electrical and mechanical characteristics, as well as dimensions, for long rod type insulator units. These insulator units are suitable for use in lightly polluted areas, with suggested creepage distances provided in the document. However, shorter or longer creepage distances can be used depending on specific operating conditions. The standard can also be applied to insulator units outside its scope, such as those used in electric traction lines. The document does not cover tests on insulators and dimensions of end fittings, as these are addressed in other standards.
The article discusses the SIST EN IEC 60433:2021 standard for ceramic insulator units used in overhead power lines with a voltage above 1000 V. The standard applies to insulators of the long rod type, either with a clevis end fitting or a socket end fitting. It specifies values for electrical and mechanical characteristics, as well as the dimensions of the insulator units. The standard is applicable for use in lightly polluted areas, but shorter creepage distances may be used in non-polluted areas. In special cases, certain dimensions may need to be adjusted for extreme environmental conditions. The standard may also be applied to similar insulator units used in electric traction lines. The standard does not cover end fittings, as these are covered by other standards. The term "ceramic" in this document refers to porcelain materials and does not include glass.
記事タイトル：SIST EN IEC 60433：2021- 1000V以上の名目電圧を持つ架空線用絶縁体- ACシステム用セラミック絶縁体-長棒型絶縁体ユニットの特性（IEC 60433：2021） 記事内容：この国際標準は、1,000 Vを超える名目電圧と100 Hz以下の周波数を持つAC架空電力線で使用するためのセラミック材料の絶縁体部品の長棒型絶縁体ユニットに適用されます。 これは、変電所で使用される同様のデザインの絶縁体にも適用されます。 本文書は、舌軸との結合のために両端にクレビス端部装着具を持つセラミック製の長棒型絶縁体ユニット、またはピンボールとの結合のために両端にソケット端部装着具を持つセラミック製の長棒型絶縁体ユニットに適用されます。 この文書の目的は、長棒型セラミック絶縁体ユニットの電気的および機械的特性、および主要寸法に特定の値を規定することです。 この文書は、軽度汚染地域に設置された架空線に使用するための絶縁体ユニットに適用されます。テーブル1に記載されている漏洩距離は、IEC TS 60815-2の推奨に従い、SPSクラスの場合に27.8 mm/kVで設定されています。 ただし、非汚染地域ではより短い漏洩距離が適用される場合もあります。特定の運転条件が非標準的な（より長いまたはより短い）漏洩距離の使用を要求または許可する場合、本文書の機械的特性および長さL（第4条参照）が使用されるものとし、例外的な長い漏洩距離が必要な場合は、テーブル1で与えられた値よりも大きなLの値が必要とされます。特定の要件、例えば非常に重度の汚染地域やその他の特定または極端な環境条件では、特定の寸法の変更が必要になる場合があります。 合理的に適用可能な範囲で、この文書はこの標準の範囲外の類似の絶縁体ユニットにも適用される場合があります。電気牽引線に使用される絶縁体にも適用できます。 この文書には、絶縁体のテストおよび端部装着具の寸法は含まれていません。ボールおよびソケット結合はIEC 60120でカバーされ、クレビスおよび舌結合はIEC 60471でカバーされています。 注釈1：現地の汚染度の定義については、IEC TS 60815の該当部分を参照してください。 注釈2：この文書では「セラミック」という用語は、磁器材料を指し、北米の慣習とは異なりガラスは含まれません。
article title: SIST EN IEC 60433:2021 - Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic insulators for AC systems - Characteristics of insulator units of the long rod type (IEC 60433:2021) article content: 이 국제 표준은 1,000V 이상의 명목 전압과 100Hz 이하의 주파수를 갖는 교류 고압 전선에서 사용되는 세라믹 재질의 절연 부품을 가진 긴 막대형 전기절연체에 적용됩니다. 또한 기지국에서 사용되는 동일한 디자인의 절연체에도 적용됩니다. 이 문서는 총접형 표준물과 결합하기 위해 매 곁에 클레비스 형태의 연결부가 있는 세라믹 막대형 전기절연체, 또는 공 형태의 연결부가 있는 세라믹 막대형 전기절연체에 적용됩니다. 이 문서의 목적은 긴 막대형 세라믹 전기절연체의 전기적 및 기계적 특성과 주요 치수에 대한 특정 값을 정하려는 것입니다. 이 문서는 가벼운 오염 지역에 설치된 고압 전선의 사용을 위한 총접 형 전기절연체에 적용됩니다보통 이 문서에서 제시된 흠김 경로는 IEC TS 60815-2에서 권장하는 SPS 등급의 경우에 따라 27.8mm/kV로 설정되었습니다. 그러나 일부 미오염 지역에서는 더 짧은 흠김 경로를 적용할 수도 있습니다. 특정 운전 조건이 또는 선택적으로 비표준(더 긴 또는 더 짧은) 흠김 경로의 사용을 허용하는 경우 이 문서의 기계적 특성 및 길이 'L'(제4항 참조)을 사용하는 것이 의도되며, 필요에 따라 특이한 긴 흠김 경로가 Table 1에 제공된 값보다 큰 L 값을 요구할 수 있습니다. 흠김 경로의 경우 'L'값보다 큰 값을 요구하는 예를 들면 매우 오염된 지역 또는 특정한 환경 조건을 생각할 때 특정한 치수를 변경해야 할 수 있습니다. 합리적으로 적용 가능한 한, 이 문서는 이 표준 범위 밖의 유사한 절연체에도 적용될 수 있습니다. 예를 들어 전기적 추적 라인을 위한 절연체에도 적용될 수 있습니다. 이 문서에는 절연체의 테스트 및 종단 조립의 치수가 포함되어 있지 않습니다. 볼과 소켓 연결은 IEC 60120에서 다루어지며, 클레비스와 통 연결은 IEC 60471에서 다루어집니다. 주석 1 : 현장 공해 정도의 정의에 대해서는 IEC TS 60815의 해당 부분을 참조하십시오. 주석 2 : 이 문서에서 용어 '세라믹'은 도자기 재질을 의미하며, 북미의 관행과 달리 유리는 포함하지 않습니다.
기사 제목: SIST EN IEC 60433:2021 - 1000V 이상의 명목 전압용 공중선용 절연체 - AC 시스템용 세라믹 절연체 - 긴 막대형 절연체 유닛의 특성 (IEC 60433:2021) 기사 내용: 이 국제 표준은 1000V 이상의 명목 전압과 100Hz 이하의 주파수로 사용되는 AC 공중 전력선에 사용되는 세라믹 절연체 유닛을 위한 것입니다. 또한, 동일한 디자인을 가진 변전소에서 사용되는 절연체에도 적용됩니다. 이 문서는 언어와 결합하기 위해 양끝에 각각 클레비스 연결부 또는 소켓 연결부가 있는 긴 막대형 절연체 유닛에 대한 특정 값들을 규정합니다. 이 문서는 가벼운 오염 지역에 위치한 공중선에서 사용되는 절연체 유닛에 적용되며, Table 1에 제시된 크리피지 거리는 SPS 등급을 위해 IEC TS 60815-2에서 제안한 27.8 mm/kV를 사용하여 설정되었습니다. 그러나, 일부 비오염 지역에서는 더 짧은 크리피지 거리가 적용됩니다. 특정 운영 조건이 특수한 (더 긴 또는 더 짧은) 크리피지 거리를 요구하거나 허용하는 경우, 이 문서의 기계적 특성 및 길이 L(제4조 참조)을 사용해야 합니다. 다만, 예외적으로 긴 크리피지 거리의 필요성이 있다면 Table 1에서 제시된 값보다 더 큰 L 값이 필요할 수 있습니다. 특수한 요구 사항 경우, 예를 들어 매우 오염된 지역이나 다른 특수한 또는 극단적인 환경 조건에 대해 몇 가지 치수를 변경해야 할 수도 있습니다. 합리적으로 적용되는 범위 내에서, 이 문서는 본 표준의 범위를 벗어나는 유사한 절연체 유닛에도 적용될 수 있습니다. 예를 들어, 전기적 인열선에 사용되는 절연체에도 적용될 수 있습니다. 이 문서에는 절연체의 시험과 끝 측 부품의 치수를 다루지 않습니다. 볼과 소켓 연결 부품은 IEC 60120, 클레비스와 통 연결 부품은 IEC 60471에 포함되어 있습니다. 참고1: 현장 오염 정도의 정의에 대해서는 IEC TS 60815의 해당 부분을 참조하십시오. 참고2: 본 문서에서 "세라믹"이라는 용어는 사향 재료를 의미하며, 북미의 관행과는 달리 유리를 포함하지 않습니다.
記事タイトル：SIST EN IEC 60433:2021 - 1000 V以上の名目電圧用の架空送電線絶縁体 - 交流システム用セラミック絶縁体 - 長棒タイプの絶縁体ユニットの特性（IEC 60433:2021） 記事内容：本国際標準は、1000 V以上の名目電圧および周波数が100 Hz以下のAC架空送電線で使用するためのセラミック絶縁体ユニットに適用されます。また、変電所などで使用される同様の設計の絶縁体にも適用されます。 この文書では、長棒タイプの絶縁体ユニットについて、2つのクレビスエンドフィッティング（ボールトンとの連結用）または2つのソケットエンドフィッティング（ピンボールとの連結用）を持つセラミックの絶縁体ユニットに対して、特定の電気的および機械的特性、および主要な寸法の規定値を指定します。 この文書は、軽度汚染地域に設置された架空送電線で使用される絶縁体ユニットに適用され、Table 1のクリーピージ距離は、IEC TS 60815-2のSPSクラスに基づいて、27.8 mm/kVの推奨値を使用して確立されました。 ただし、一部の非汚染地域では短いクリーピージ距離が適用されます。特定の運用条件が特殊な（長いまたは短い）クリーピージ距離を要求または許可する場合、この文書の機械的特性および長さL（第4条参照）を使用する必要があります。ただし、非常に長いクリーピージ距離が必要な場合は、Table 1で表示される値よりも大きなLの値が必要となる場合があります。特別な要件の場合、例えば非常に高度に汚染された地域やその他の特定または極端な環境条件では、一部の寸法を変更する必要がある場合があります。 合理的に適用可能な範囲で、この文書は本標準の範囲外の類似の絶縁体ユニットにも適用できます。例えば、電気牽引線など、本標準対象外の絶縁体ユニットにも適用できます。 この文書には絶縁体のテストやエンドフィッティングの寸法は含まれていません。ボールとソケットの連結部分はIEC 60120で、クレビスとタンの連結部分はIEC 60471で取り扱われています。 注1：現場の汚染度の定義については、IEC TS 60815の該当部分を参照してください。 注2：この文書では「セラミック」という用語は陶磁器材料を指し、北米の慣習とは異なりガラスは含まれていません。
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