Table of Contents

Abstract

Specifies requirements for the construction and performance of ceramic or glass station post insulators. It is to be read in conjunction with Part 2: Tests. It is based on and reproduced from IEC 273:1990 with the addition of an Appendix giving Australian variations.
RECONFIRMATION NOTICE
Technical Committee EL-010 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 18 November 2015.
The following are represented on Technical Committee EL-010:
Australian Industry Group
Electricity Engineers Association (New Zealand)
Energy Networks Association

Scope

This standard applies to post insulators and post insulator units of ceramic material or glass intended for indoor or outdoor service, and to post insulators of organic material intended for indoor service in electrical installations or equipment operating on alternating current systems with a nominal voltage greater than 1000 V and a frequency not greater than 100 Hz. It may also be regarded as a provisional standard for insulators for use on direct current systems. The insulators covered by this standard are primarily intended for use in isolators (disconnectors) or as bus-bar or fuse supports.
This standard covers five types of post insulators:
a) indoor post insulators of ceramic material or glass and with internal metal fittings;
b) indoor post insulators of organic material and with internal metal fittings;
c) outdoor cylindrical post insulators of ceramic material or glass and with internal metal fittings;
d) outdoor cylindrical post insulators of ceramic material or glass and with external metal fittings;
e) outdoor pedestal post insulators of ceramic material or glass.
The term "cylindrical insulators" is intended to cover insulators of the truncated conical form also.
The five types of insulators are distinguished by their electrical, mechanical and dimensional characteristics. Figures 1, 2, 3, 4 and 5 illustrate typical examples of each type of insulator.
These drawings are only general illustrations and other shapes and constructions are permitted.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	See also AS 1137.3-1981 Reconfirmed 27/05/2016. This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 27/05/2016
Pages
ISBN
Committee	EL-010
Supersedes	DR 95203