Find Hot Wire With Voltage Tester
Find Hot Wire With Voltage Tester . White and grey wires are neutral; It will help you determine which one is hot. Fluke 322 Clamp £55.and Fluke T150 Voltage Tester £75 Sumra from live.sumra.net In a standard switch/dimmer, the "hot" is using one of the two wires connected to the switch. Another helpful thing you can do when it comes to testing if a wire is hot or not is to understand the wiring. If checking household receptacles and lighting for hot wires, the needle should read between 110 and 120 volts.