轨道交通电工电子设备的绝缘配合(上)  

Insulation Coordination of Electrotechnial and Electronic Equipment for Rail Traffic(Part 1 to 2)

作　　者：严云升[1] 刘贵[1] 

机构地区：[1]株洲南车时代电气股份有限公司,湖南株洲412001

出　　处：《铁道技术监督》2011年第9期1-5,共5页Railway Quality Control

摘　　要：从绝缘配合的基本概念及TB/T3251.1—2010《轨道交通绝缘配合第1部分:基本要求电工电子设备的电气间隙和爬电距离》的制定背景出发,阐述确定绝缘配合的因素,包括额定绝缘电压、过电压类别、污染等级、绝缘材料及海拔等,以及获得所需电气间隙和爬电距离的步骤,说明过电压防护仿真的作用和参数,解释绝缘试验中的实际问题,以便理解和执行TB/T3251.1—2010。Based on the concept of insulation coordination and the background of formulating TB/T 3251.1--2010 “Part One of the Insulation Coordination of Rail Traffic.： Fundamental Requirements Electric Clearance and Creepage Distance of Eleetrotechnieal and Electronic Equipment”, the authors expound the factors influencing insulation coordination, including nominal insulation voltage, overvoltage type, pollution level, insulation material, altitude etc. and the steps of getting the required electric clearance and ereepage distance, explain the parameters and functions of overvoltage protection and simulation, explain the practical problems in the insulation experiment in order to help understand and implement TB/T 3251.1--2010.

关 键 词：轨道交通 电气设备 绝缘配合 电气间隙 爬电距离 过电压防护 

分 类 号：TM853[电气工程—高电压与绝缘技术] U223[交通运输工程—道路与铁道工程]