AS 4435.1:1996 (R2016)
$29.25
Insulators – Composite for overhead power lines – Voltages greater than 1000 V a.c. – Definitions, test methods and acceptance criteria for string insulator units
Published By | Publication Date | Number of Pages |
AS | 1996-12-05 | 57 |
Specifies definitions, test methods and acceptance criteria for composite insulators for use on a.c. overhead lines. It is based on and reproduced from IEC 1109:1992 including Amendment No. 1:1994. It has an Appendix giving Australian variations.
Scope
This International Standard is applicable to composite insulators for use as suspension/tension line insulators, but it is to be noted that these insulators can occasionally be subjected to compression or bending, for example
when used as phase-spacers. Composite insulators designed primarily to resist bending loads, e.g. line post insulators, are not included in the scope of this Standard.
This standard deals with those composite insulators which include a "core" and a "housing". The core is usually made of resin-impregnated glass fibres. The housing can be manufactured from a variety of materials including elastomers (e.g. silicone, ethylene-propylene); resins (e.g. cycloaliphatic epoxy); or fluorocarbons (e.g.
polytetrafluoroethylene).
The object of this Standard is to:
– define the terms used;
– prescribe test methods;
– prescribe acceptance criteria.
This standard does not include requirements dealing with the choice of insulators for specific operating conditions.