ETD/06/18032 : Hybrid insulators for ac and dc for high-voltage applications - Definitions test methods and acceptance criteria
Division Council Chairperson
Shri V. S. Nandakumar
Sectional Committee Chairperson and Member Secretary
Chairperson : Shri Shiv Shankar Mishra Member Secretary :
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This standard applies to hybrid insulators for a.c. and d.c. applications consisting of a load-bearing insulating solid or hollow core consisting of ceramic or glass, a housing (defined geometry, outside the insulating core) made of polymeric material and end fittings permanently attached to the insulating core. Hybrid insulators covered by this standard are intended for use as suspension/tension line insulators, line post insulators, station post insulators and hollow core insulators for apparatus.
The object of this standard is to:
- define the terms used;
- prescribe test methods;
- prescribe acceptance criteria.
Silicone or other functional coatings (CIGRE Technical Brochure No. 478, Appendix B), booster sheds, shed extenders and rain deflectors are not within the scope of this technical specification.