Channel: Thomas Kim
Category: Science & Technology
Description: How to find out which of several circuit breakers supplies power to a specific load. I made a tester using a 6.8k ohm resistor and switch, a neon lamp for this. It can generate a leakage current of 30mA at AC 220V. When applied to 120V GFCI, leakage current is 15mA. Materials : Plastic Bottle 6.8k ohm 2W Resistor 150k ohm 1/4W Resistor Neon Lamp Push Switch(Normally Open) Alligator Clips