Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type

Applies to string insulator units of the cap and pin type with insulating parts of ceramic material or glass, intended for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz and to insulators of similar design used in substations.

Isolatoren für Freileitungen mit einer Nennspannung über 1 kV - Keramik- oder Glasisolatoren für Wechselpannungssysteme - Kenngrößen von Kappenisolatoren

Isolateurs pour lignes aériennes de tension nominale supérieure à 1 kV - Eléments d'isolateurs en matière céramique ou en verre pour systèmes à courant alternatif - Caractéristiques des éléments d'isolateurs du type capot et tige

La présente Norme Internationale est applicable aux éléments de chaînes d'isolateurs du type capot et tige ayant des parties isolantes en matière céramique ou en verre et destinés aux lignes aériennes fonctionnant en courant alternatif à une tension nominale supérieure à 1000 V et à une fréquence au plus égale à 100 Hz. Elle s'applique également aux isolateurs du même type utilisés dans les postes.

Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type (IEC 305:1995)

General Information

Status
Published
Publication Date
31-May-1996
Withdrawal Date
30-Nov-1996
Drafting Committee
Parallel Committee
Current Stage
6060 - Document made available - Publishing
Start Date
15-Mar-1996
Completion Date
15-Mar-1996

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SLOVENSKI STANDARD
SIST EN 60305:1997
01-november-1997

Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass

insulator units for a.c. systems - Characteristics of insulator units of the cap and

pin type (IEC 305:1995)

Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass

insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type

Isolatoren für Freileitungen mit einer Nennspannung über 1 kV - Keramik- oder
Glasisolatoren für Wechselpannungssysteme - Kenngrößen von Kappenisolatoren

Isolateurs pour lignes aériennes de tension nominale supérieure à 1 kV - Eléments

d'isolateurs en matière céramique ou en verre pour systèmes à courant alternatif -

Caractéristiques des éléments d'isolateurs du type capot et tige
Ta slovenski standard je istoveten z: EN 60305:1996
ICS:
29.080.10 Izolatorji Insulators
29.240.20 Daljnovodi Power transmission and
distribution lines
SIST EN 60305:1997 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60305:1997
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SIST EN 60305:1997
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SIST EN 60305:1997
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SIST EN 60305:1997
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SIST EN 60305:1997
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SIST EN 60305:1997
NORME CEI
INTERNATIONALE
IEC
305
INTERNATIONAL
Quatrième édition
STANDARD
Fourth edition
1995-12
Isolateurs pour lignes aériennes de tension
nominale supérieure à 1 000 V —
Eléments d'isolateurs en matière céramique
ou en verre pour systèmes à courant alternatif —
Caractéristiques des éléments d'isolateurs
du type capot et tige
Insulators for overhead lines with a nominal
voltage above 1 000 V —
Ceramic or glass insulator units for
a.c. systems —
Characteristics of insulator units of the cap
and pin type
© CEI 1995 Droits
de reproduction réservés — Copyright — all rights reserved
Aucune partie de cette publication

ne peut être reproduite ni No part of this publication may be reproduced or utilized in

utilisée sous quelque forme

que ce soit et par aucun pro- any form or by any means, electronic or mechanical,

cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission

les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.

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International Electrotechnical Commission
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IEC
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For price, see current catalogue
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SIST EN 60305:1997
305 ©IEC:1995 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
INSULATORS FOR OVERHEAD LINES
WITH A NOMINAL VOLTAGE ABOVE 1 000 V -
Ceramic or glass insulator units for a.c. systems -
Characteristics of insulator units of the cap and pin type
FOREWORD

The IEC (International Electrotechnical Commission) is a worldwide organization for standardization

comprising all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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 non-governmental organizations

liaising with the IEC also participate in this preparation. The 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 the 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 National Committees.

3) The documents produced have the form of recommendations for international use and are published in the

form of standards, technical reports or guides and they are accepted by the National Committees in that

sense.

4) In order to promote international unification, IEC National Committees undertake to apply IEC International

Standards transparently to the maximum extent possible in their national and regional standards. Any

divergence between the IEC Standard and the corresponding national or regional standard shall be clearly

indicated in the latter.

5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with one of its standards.

6) Attention is drawn to the possibility that some of the elements of this International Standard may be the

subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 305 has been prepared by sub-committee 36B: Insulators for

overhead lines, of IEC technical committee 36: Insulators. This fourth edition cancels and

replaces the third edition published in 1978 of which it constitutes a technical revision in order

to introduce characteristics of cap and pin insulators for polluted areas.
The text of this standard is based on the following documents:
DIS Report on voting
36B/149/RVD
36B/139/DIS

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.
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SIST EN 60305:1997
305 ©IEC:1995 – 5 –
INSULATORS FOR OVERHEAD LINES
WITH A NOMINAL VOLTAGE ABOVE 1 000 V -
Ceramic or glass insulator units for a.c. systems -
Characteristics of insulator units of the cap and pin type
1 Scope and object

This International Standard applies to string insulator units of the cap and pin type with

insulating parts of ceramic material or glass, intended for a.c. overhead lines with a nominal

voltage greater than 1 000 V and a frequency not greater than 100 Hz. It also applies to

insulators of similar design used in substations.

This standard applies to string insulator units of the cap and pin type either with ball and socket

couplings or with clevis and tongue couplings.

This standard applies to string insulator units for use on overhead lines in clean areas and

polluted areas. For use in areas characterized by very heavy pollution levels and for other

particular or extreme environmental conditions, it may be necessary for certain dimensions to

be changed and insulator units having different creepage distances, spacing and forms may be

preferred (for example, flat profile, hemispherical etc.). Insulators for use on d.c. systems may

also need different dimensions. In any case, it is recommended tha
...

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