Standard No.:	GB/T 26218.1-2010
Chinese Name:	污秽条件下使用的高压绝缘子的选择和尺寸确定　第1部分：定义、信息和一般原则
English Name:	Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 1:Definitions,information and general principles
Professional Classification:	K48 Insulator
ICS Classification:	29.080.10 Insulators
Issued by:
Issued on:	2011-01-14
Implemented on:	2011-07-01
Status:	VALID
Replace:	GB/T5582-1993 External insulation pollution classes of high-voltage electric power equipments
Language:	English
File Format:	PDF
Word Count:	22000 words
Price(USD):	660 (USD)
Delivery:	via email in 1-5 business day

This part of GB/T 26218 specifies general definitions, methods for the evaluation of site pollution severity (SPS) and outlines the principles to arrive at an informed judgement on the probable behaviour of a given insulator in certain pollution environments.
This part is applicable to the selection of insulators, and the determination of their relevant dimensions, to be used in high-voltage systems with respect to pollution.
This part is generally applicable to all types of external insulation, including insulation forming part of other apparatus. The term “insulator” is used hereafter to refer to any type of insulator.
CIGRE C4 documents [1], [2], [3], form a useful complement to GB/T 26218 for those wishing to study in greater depth the performance of insulators under pollution.
This part does not deal with the effects of snow, ice or altitude on polluted insulators. Although this subject is dealt with by CIGRE [1], [4], current knowledge is very limited and practice is too diverse.