Electrical Projects Leakage current can be measured with an instrument such as the RCA WT-540A ac leakage tester. This instrument has no switches, dials, or other operating controls, its black test lead, which is terminated in a clip, is connected to a ground point. The red test probe has a sharp point to enable it to pierce dirt, grease, etc., and is touched to the metal parts of the appliance being tested The meter scale has only one range and is color coded red and green to indicate safe and unsafe leakage levels. If connected to an appliance that has extremely high leakage current or to one that is shorted, an internal fuse will blow. When this happens, a fuse-indicator lamp on the front panel will glow.





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Home > Electrical Projects > Tools And Components > Appliance Leakage Tester

November 20, 2008