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IEC 60587

3rd Edition, May 2007

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Electrical insulating materials used under severe ambient conditions – Test methods for evaluating resistance to tracking and erosion



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Description / Abstract:

This International standard describes 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.

NOTE 1 Method 1 is the most widely used method as there is less need for continual inspection.

NOTE 2 The test conditions are designed to accelerate the production of the effects, but do not reproduce all the conditions encountered in service.