Ground tester

Posted on Jan 24, 2013    10614

This circuit checks the reliability of appliances so that the equipment may be used safely. The test circuit must be plugged into a properly wired three terminal wall outlet. When a two-lead or three-lead appliance is plugged into circuit outlet SOI, neon lamps NE1 and NE2 will light if the appliance is safe

Ground tester
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If neon NE2 is lit the appliance is dangerous, because the neutral lead is 110 Vac above ground.

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