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IEC TR 62039:2021

(Main)

Selection guidelines for polymeric materials for outdoor use under HV stress

Selection guidelines for polymeric materials for outdoor use under HV stress

IEC TR 62039:2021(E) presents the important material properties of polymeric materials used in outdoor insulation and, where applicable, lists standardized test methods including minimum requirements. If no standardized tests are available, the test methods reported in literature are summarized.
This document is valid for insulating materials having polymeric insulation, which are used in outdoor high voltage electrical applications with a system voltage greater than 1 000 V AC and 1 500 V DC (several tests are only defined for alternating current, which are not applicable for direct current). Such applications are relevant where the housing is an integral part of the device, for example in surge arresters and cable terminations. The scope of this document is limited to the insulation materials only and is not generally intended for coating materials (coating materials are, for example, thin layers applied on toughened glass and ceramic). Some tests mentioned in this document are applicable for coating and are under consideration by CIGRE. The performance of insulators in service depends on several factors such as the type of material, the design and environmental conditions. Consequently, the choice of materials that fulfil the requirements listed in Table 1 is a necessary condition but does not guarantee satisfactory performance when used in outdoor insulation.

General Information

Status
Published
Publication Date
23-Aug-2021
ICS
29.035.20 - Plastics and rubber insulating materials
29.080.10 - Insulators
Technical Committee
TC 112 - Evaluation and qualification of electrical insulating materials and systems
Drafting Committee
WG 5 - TC 112/WG 5
Current Stage
PPUB - Publication issued
Start Date
10-Sep-2021
Completion Date
24-Aug-2021
Ref Project

Relations

Revises
IEC TR 62039:2007 - Selection guide for polymeric materials for outdoor use under HV stress
Effective Date
05-Sep-2023

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IEC TR 62039:2021 - Selection guidelines for polymeric materials for outdoor use under HV stress
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IEC TR 62039
®

Edition 2.0 2021-08
TECHNICAL
REPORT

colour
inside


Selection guidelines for polymeric materials for outdoor use under HV stress
IEC TR 62039:2021-08(en)

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IEC TR 62039

®


Edition 2.0 2021-08




TECHNICAL



REPORT








colour

inside










Selection guidelines for polymeric materials for outdoor use under HV stress




























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ICS 29.035.20; 29.080.10 ISBN 978-2-8322-1012-8




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---------------------- Page: 3 ----------------------
– 2 – IEC TR 62039:2021 © IEC:2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Important material properties . 9
4.1 General . 9
4.2 Resistance to tracking and erosion . 9
4.3 Arc resistance . 9
4.4 Water diffusion test (resistance of material to chemical and physical
degradation by water) . 10
4.4.1 General . 10
4.4.2 Test specimens . 10
4.4.3 Test procedure .
...

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Selection guide for polymeric materials for outdoor use under HV stress

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