IEC TS 60815-4-2016

Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 4: Insulators for d.c. systems

IEC TS 60815-4-2016 发布历史

This part of IEC 60815, which is a Technical Specification, is applicable as first approach for the determination of the required d.c. Unified Specific Creepage Distance for insulators with respect to pollution. To avoid excessive over or under design, existing operation experience should be compared and eventually additional appropriate tests may be performed by agreement between supplier and customer. It is applicable to: Glass and porcelain insulators; Composite and hybrid insulators with an HTM or non-HTM housing. This part of IEC 60815 gives specific guidelines and principles to arrive at an informed judgement on the probable behaviour of a given insulator in certain pollution environments. The structure and approach of this part of IEC 60815 are similar to those explained in Part 1, but adapted for the specific issues encountered with polluted HV d.c. insulation. The aim of this Technical Specification is to give the user simplified means to; Identify issues specific to d.c. applications that can affect the choice and design process; Determine the equivalent d.c. Site Pollution Severity (SPS) from measurements, correcting for electrostatic effects, diameter, pollution distribution and composition; Determine the reference USCD for different candidate insulating solutions, taking into account materials, dimensions and risk factors; Evaluate the suitability of different insulator profiles; Discuss the appropriate methods to verify the performance of the selected insulators, if required; This simplified process is intended to be used when comparable operational experience from existing d.c. system is incomplete or not available. The simplified design approach might result in a solution that exceeds the physical constraints of the project. More refined approaches for such cases, e. g. using a statistical approach, are given in the CIGRE d.c. guidelines [1]. In extreme cases, e. g. for exceptionally severe site conditions, alternative solutions such as changing the line route, relocation of converter stations or using an indoor d.c. yard may need to be considered.

IEC TS 60815-4-2016由国际电工委员会 IX-IEC 发布于 2016-10。

IEC TS 60815-4-2016在国际标准分类中归属于: 29.080.10 绝缘子。

IEC TS 60815-4-2016的历代版本如下：

• 2016年10月 IEC TS 60815-4-2016

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标准号

IEC TS 60815-4-2016

发布日期

2016年10月

实施日期

废止日期

无

国际标准分类号

29.080.10

发布单位

国际电工委员会

引用标准

IEC/TS 60815-1-2008 IEC/TS 60815-2-2008 IEC/TS 60815-3-2008 IEC/TS 61245-2015 IEC/TS 62073-2016

被代替标准

IEC 36/382/DTS-2016

适用范围

This part of IEC 60815, which is a Technical Specification, is applicable as first approach for the determination of the required d.c. Unified Specific Creepage Distance for insulators with respect to pollution. To avoid excessive over or under design, existing operation experience should be compared and eventually additional appropriate tests may be performed by agreement between supplier and customer. It is applicable to: Glass and porcelain insulators; Composite and hybrid insulators with an HTM or non-HTM housing. This part of IEC 60815 gives specific guidelines and principles to arrive at an informed judgement on the probable behaviour of a given insulator in certain pollution environments. The structure and approach of this part of IEC 60815 are similar to those explained in Part 1, but adapted for the specific issues encountered with polluted HV d.c. insulation. The aim of this Technical Specification is to give the user simplified means to; Identify issues specific to d.c. applications that can affect the choice and design process; Determine the equivalent d.c. Site Pollution Severity (SPS) from measurements, correcting for electrostatic effects, diameter, pollution distribution and composition; Determine the reference USCD for different candidate insulating solutions, taking into account materials, dimensions and risk factors; Evaluate the suitability of different insulator profiles; Discuss the appropriate methods to verify the performance of the selected insulators, if required; This simplified process is intended to be used when comparable operational experience from existing d.c. system is incomplete or not available. The simplified design approach might result in a solution that exceeds the physical constraints of the project. More refined approaches for such cases, e. g. using a statistical approach, are given in the CIGRE d.c. guidelines [1]. In extreme cases, e. g. for exceptionally severe site conditions, alternative solutions such as changing the line route, relocation of converter stations or using an indoor d.c. yard may need to be considered.

IEC TS 60815-4-2016系列标准