It depends on your test mode and criteria.
For example, if you want to set the limit setting of the withstanding voltage test to 10 mA when applying 1000 V, the resistance will be: 1000 V / 10 mA = 100 kΩ. The power consumed by the resistor will be: 1000 V x 10 mA = 10 W.
If you want to set the limit setting of the insulation resistance test to 20 MΩ when applying 1000 V, the resistance will be 20 MΩ.
The power consumed by the resistor will be: 1000 V x 1000 V / 20 MΩ = 0.05 W
Use a dummy resistor that meets your testing requirements.
You may have to derate your dummy resistor by 50 – 80% to maintain its reliability and life expectancy, which are affected by its power consumption and the room temperature.
Our optional calibration resistors for the insulation resistance tester (929-1M/10M/100M) may be able to meet your requirements.
