Insulation Resistance Testing - Insulation Resistance Testers and Test Equipment Kikusui DC insulation resistance testing, testers and insulation resistance testing equipment available in the UK from electrical safety test specialist telonic instruments. Contact us at Telonic

Insulation Resistance Testing - Insulation Resistance Testers and Test Equipment

This test is the same as the withstanding voltage test in that it is mandatory to prevent electric shock and fire accidents from using the equipment and that it checks the functionality or performance of the insulator. The withstanding voltage test detects insulation defects by checking whether dielectric breakdown occurs. The insulation resistance test detects insulation defects by measuring the resistance.

After absorbing the moisture of the equipment (sometimes this is not done), a specific DC voltage that is 5 to 10 times higher than the normal voltage is applied, and the resistance is measured from the amount of current that flows. If the insulation resistance is sufficient, the equipment meets the requirements for preventing electric shock and fire accidents.
 
insulation resistance testing
Insulation Resistance Testing
 
Why DC voltage is used to perform insulation resistance testing

The insulation resistance test measures the resistive component of the insulator. The capacitive component is ignored. The equipment is only safe if at least a given insulation resistance (a value specified by a standard) is maintained. The insulation resistance test is performed to check this resistance. If the insulation resistance test is performed using an AC voltage, we end up measuring the impedance of the capacitive component and prevents us from obtaining the required insulation resistance. This is the reason why the insulation resistance test is performed using a DC voltage.
 
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  • Output voltage setting range: -25 to -1000V
  • Resistance measurement range: 0.01 M Ohm to 5000 M Ohm
  • Provided with the discharge function
  • Equipped with the window comparator
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  • Equipped with the RS-232C interface as standard
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Kikusui DC insulation resistance testing, testers and insulation resistance testing equipment available in the UK from electrical safety test specialist telonic instruments
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