The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...

A complex conveyor system threads its way through the plant. This system has a large number of 10-hp motors, and you replace one every few weeks. Your company's policy is not to send "throw away" ...

One high-value section of a mid-sized manufacturing plant is supplied by a single feeder. Branch circuits include the overhead lights, convenience receptacles, two conveyor systems, a powder ...