2. Getting involved
3. Standards Committees
4. DKE

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

Overview

This document applies to hybrid insulators for AC and DC applications greater than 1 000 V AC and 1 500 V DC 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 document are intended for use as suspension/tension long rod and cap and pin type insulators, line post insulators, station post insulators and hollow core insulators for apparatus. The object of this document is to: - define the terms used; - prescribe test methods; - prescribe acceptance criteria. Silicone or other functional coatings (CIGRE Technical Brochure No. 478, booster sheds, shed extenders and rain deflectors are not within the scope of this document. In June 2021 CIGRE B2.69 published two Technical Brochures, TB 837 and TB 838, covering the scope of practical applications and the collection of experience for coatings against contamination for insulators. This document does not include requirements dealing with the choice of insulators for specific operating conditions. The standard differs from DIN IEC/TS 62896 (VDE V 0674-12):2016-10 as follows: a) changes to terms and definitions; b) changes to test methods contained in IEC TR 62039 and IEC 62217 (testing for hydrophobicity transfer); c) alignment of Table 1 (tests to be performed after changes in design and construction) with other product standards and IEC 62217.

Responsible national committee

DKE/K 451 - Isolatoren