Insulator PDF
Low-Frequency Voltages of Insulator Test
Low Frequency: Low frequency, as used in this standard, means any frequency between 15 and 100 hertz.
Low-Frequency Flashover Voltage: A low-frequency flashover voltage of an insulator is the root mean-square value of the low-frequency voltage that, under specified conditions, causes a sustained disruptive discharge through the surrounding medium.
Dry flashover voltage tests are tests as described in Low-Frequency Dry Flashover Voltage Tests section.
Wet flashover voltage tests are tests as described in Low-Frequency Wet Flashover Voltage Tests section.
Low-Frequency Withstand Voltage: A low-frequency withstand voltage of an insulator is the root-National Electrical Manufacturers Association It is illegal to resell or modify this publication mean-square value of the low-frequency voltage that, under specified conditions, can be applied without causing flashover or puncture.
Dry withstands voltage tests are tests as described in Low-Frequency Dry Withstand Voltage Tests section.
Wet withstands voltage tests are insulator test as described in Low-Frequency Wet Withstand Voltage Tests section.
Dew withstands voltage tests are tests as described in Low-Frequency Dew Withstand Voltage Tests section.
Low Frequency Puncture Voltage: A low frequency puncture voltage of an insulator is the root-mean-square value of the low-frequency voltage that, under specified conditions, causes disruptive discharge through any part of the insulator.
Puncture tests are tests as described in Puncture Tests section.