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◆Cause of Leakage Current?
▶ Leakage Current of Various Ground Wires
1. Leakage current of high voltage equipment enclosure ground wire?
2. CNCV Shield Current?
3. Connect the cubicle ground busbar with Various ground wire leakage current?
4. Branch ground wire leakage current in distribution panel?
5. Ground terminal box leakage current?
6. Transformer Class 2 Ground Wire Leakage Current?
7. Leakage current of electronic devices?
8. Load devices ground wire leakage current?

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◆Measurement of RCD trip time & Measurement of trip out current
• Measurement of RCD trip time
 Conducting testing of rated residual non-operating currents at
 × 1/2 Range, measuring RCD trip time at × 1 and × 5 Ranges.
• Measurement of trip out current
 Measuring trip out current by varying current automatically.
• Auto-detection of Contact voltage
 Detecting the voltage to earth of Earth electrodes or
 Protective conductors during RCD test - when applying
 test currents - at measurement using EARTH in order to
 prevent electrical shocks caused by the damaged earth.
 Measurement will be ceased at AC50V or more.

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