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26 June 2024
- 03:5703:57, 26 June 2024 diff hist +4,641 N Comparative Tracking Index Since the breakdown voltage of air is above 40 kV for 4 mm distance, in principle the method can be used at higher voltages too. Also, carrying out CTI tests with a setup as described in IEC 60112 on a ceramic sample at voltages above 600 (up to 1000 V) are still pass, indicating that in principle the method is capable.However, there is a debate ongoing, if the arching that can happen at higher voltages is influencing the test result on polymers. current