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BSI PD IEC/TS 62896:2015:2016 Edition

BSI PD IEC/TS 62896:2015:2016 Edition

$102.76

Hybrid insulators for a.c. and d.c. high-voltage applications. Definitions, test methods and acceptance criteria

Published By Publication Date Number of Pages
BSI 2016 22
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IEC TS 62896:2015(E) 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 technical specification 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 technical specification 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. This technical specification does not include requirements dealing with the choice of insulators for specific operating conditions.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
5 FOREWORD
7 INTRODUCTION
8 1 Scope
2 Normative references
9 3 Definitions
11 4 Identification
5 Environmental conditions
6 Tolerances
12 7 Classification of tests
7.1 Design tests
7.2 Type tests
13 7.3 Sample tests
7.4 Routine tests
14 8 Design tests
8.1 General
Table 1 – Required tests
15 8.2 Tests on interfaces and connections of end fittings
8.2.1 General
8.2.2 Pre-stressing
Table 2 – Design tests
16 8.2.3 Verification tests
8.3 Tests on Shed and Housing Material
8.3.1 Hardness test
8.3.2 Accelerated weathering test
Figure 1 – Thermal cycle test
17 8.3.3 Tracking and erosion test
8.3.4 Flammability test
9 Type tests
9.1 General
9.2 Electrical tests
9.3 Mechanical tests
10 Sample tests
11 Routine tests
18 Annex A (informative) Comparison between hybrid insulators and glass fibre cored polymeric housing and porcelain insulators
A.1 History
A.2 Comparison between porcelain and pultruded GFRP rod
A.3 Advantages of hybrid insulators over conventional porcelain insulators
19 A.4 Advantages of hybrid insulators over glass fibre cored insulators
A.5 Problems shared with polymeric insulators
A.6 Transport, storage and installation
20 Bibliography

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BSI PD IEC/TS 62896:2015
$102.76