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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。
From the background of the basic concept of insulation coordination and the formulation of TB / T3251.1-2010 “Rail coordination with railways - Part 1: Basic requirements for clearance and creepage distances of electrical and electronic equipment”, the factors that determine the coordination of insulation, including the rated Insulation Voltage, Overvoltage Category, Pollution Degree, Insulation, Elevation, etc., as well as the steps required to achieve the required clearance and creepage distances. Explain the role and parameters of overvoltage protection simulation. Explain the practical issues in insulation testing to understand and Implementation of TB / T3251.1-2010.