DD IEC/TS 60815-3:2008
Current
The latest, up-to-date edition.
Selection and dimensioning of high-voltage insulators intended for use in polluted conditions Polymer insulators for a.c. systems
Hardcopy , PDF
English
30-06-2009
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FOREWORD
1 Scope and object
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
4 Principles
5 Materials
5.1 General information on common polymer housing
materials
5.2 Issues specific to polymer housing materials under
pollution
5.2.1 Reduction of creepage distance
5.2.2 Extreme pollution
6 Site severity determination
7 Determination of the reference USCD
8 General recommendations for polymer profiles
9 Checking of profile parameters
9.1 General remark
9.2 Alternating sheds and shed overhang
9.3 Spacing versus shed overhang
9.4 Minimum distance between sheds
9.5 Creepage distance versus clearance
9.6 Shed angle
9.7 Creepage factor
10 Correction of RUSCD
10.1 Correction for altitude K[a]
10.2 Correction for insulator diameter K[ad]
11 Determination of the final minimum creepage distance
12 Confirmation by testing
Annex A (informative) - Background information on pollution
induced degradation of polymer
Bibliography
Describes the selection of polymer insulators for a.c. systems, and the determination of their relevant dimensions, to be used in high voltage systems with respect to pollution.
| Committee |
PEL/36
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
IEC/TS 60815-3:2008(E) is applicable to the selection of polymer insulators for a.c. systems, and the determination of their relevant dimensions, to be used in high voltage systems with respect to pollution. This part of IEC/TS 60815 gives specific guidelines and principles to arrive at an informed judgement on the probable behaviour of a given insulator in certain pollution environments.
| Standards | Relationship |
| IEC TS 60815-3:2008 | Identical |
| IEC 60050-471:2007 | International Electrotechnical Vocabulary (IEV) - Part 471: Insulators |
| IEC TS 62073:2016 | Guidance on the measurement of hydrophobicity of insulator surfaces |
| IEC 60507:2013 | Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems |
| IEC TS 60815-1:2008 | Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles |
| IEC TR 62039:2007 | Selection guide for polymeric materials for outdoor use under HV stress |
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