
ELECTRICAL INSULATING MATERIALS USED UNDER SEVERE AMBIENT CONDITIONS - TEST METHODS FOR EVALUATING RESISTANCE TO TRACKING AND EROSION
出版:European Committee for Standards - Electrical

专家解读视频
Explains two test methods for the evaluation of electrical insulating materials for use under severe ambient conditions at power frequencies (45 Hz to 65 Hz) by measurement of the resistance to tracking and erosion, using a liquid contaminant and inclined plane specimens. The two methods are as follows: - Method 1: constant tracking voltage; - Method 2: stepwise tracking voltage.