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eastcoastsparky 12-02-2012 12:04 PM

clamp meter
can you trace circuits with a clamp meter

micromind 12-02-2012 12:14 PM

Only if they're energized, have current flowing, and no other circuit has the same current.

I've used a current clamp to determine which breaker controls a circuit that I want to de-energize without killing anything I want to keep hot.


McSteve 12-02-2012 12:24 PM

There's a trick I learned from someone a while back. You connect a lamp or light socket to the circuit you want to trace, and you use a 100W bulb and one of these flasher inserts to make the bulb flash:

Your clamp meter will then show that circuit's current draw pulsing at a steady rate, allowing you to identify the correct circuit.

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