Waveforms of Impulse Voltage and Their Creeping Flashover Voltage Characteristics

摘要

Four kinds of impulse voltages（0.1x40），（1x40），（6x40）μs and（3x40）μs havingunidirectional oscillations on its wave tail have been applied to two electrodes which werearranged on the surface of glass，vinyland porcelain pipes，and then creeping flashover were produced on the surface between electrodes．Plus flashover voltage is not likely to be affected by the steepness of the wave front，butminus one is higher according to the decrease of steepness of the wave front．Oscillatory voltage（3x40）μs always indicates a highest flashover voltage．From a standpoint of view of spacecharges between electrodes，these characteristics are discussed．Moreover the relations betweenthe voltage characteristics of Lichtenberg’s and Dust figure，and creeping flashover voltagecharacteristics are also discribed．