GB/T 6553-2003 Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions

Standard No.: GB/T 6553-2003
Language: Chinese
Release Date: 2003
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Replace By: GB/T 6553-2014
Lastest: GB/T 6553-2014

Scope: This standard describes two test methods for evaluating electrical insulating materials used in severe environmental conditions by measuring resistance to tracking and corrosion at power frequency (48Hz~62Hz), using liquid pollutants and inclined plane samples. Method 1: Constant tracking voltage method Method 2: Stepwise tracking voltage method For the test equipment described in the following clauses, the tracking starts at the lower electrode. Two criteria can be used to determine the endpoint of the trial. Judgment Criterion A: The end point is reached when the current passing through the sample in the high voltage circuit exceeds 60mA. At this time, the overcurrent device cuts off the power supply. Judgment Criterion B: The end point is reached when the electric trace reaches the mark on the sample surface at a distance of 25mm from the lower electrode (see Figure 1 and Figure 3b).

2014 GB/T 6553-2014 Electrical insulating materials used under severe ambient conditions.Test methods for evaluating resistance to tracking and erosion
2003 GB/T 6553-2003 Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions

GB/T 6553-2003Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions