Insulators for overhead lines – Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V – Definitions, test methods and acceptance criteria
|Publication Date:||1 May 2008|
|ICS Code (Insulators):||29.080.10|
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);
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.