Rating of High Voltage Ceramic Capacitance And Matters Needing Attention(3)

Test conditions for voltage resistance.

(1) Test equipment.

The AC voltage-resistant test equipment should have the capability to produce a sinusoidal wave similar to 50 / 60 Hz. If a deformed sine wave is applied or an overload voltage exceeds a specified voltage value, failure may occur.

(2)Voltage addition method.

When voltage resistance is applied, the lead or terminal of the capacitor shall be securely connected to the output of the voltage-resistant test equipment; then the voltage shall be increased from near zero to the test voltage.

If the test voltage is not gradually increased from near zero but is applied directly to the capacitor, the application should include over zero. At the end of the test, the test voltage should be reduced to near zero; the capacitor lead or terminal is then removed from the output of the voltage-resistant test device.

If the test voltage does not gradually increase from near zero but is applied directly to the capacitor, a surge voltage may occur, resulting in a fault of.0V voltage sinusoidal wave. After zero is the position of the voltage sinusoidal passing through 0 V.