Modern wiring includes a ground wire to provide a safe path for stray currents, but homes predating the 1960s may lack this feature. Make sure any electrical wiring meets current electrical codes ...

Figure 2 Wiring of a GFCI receptacle is the same as for a non-GFCI unit, as the GFCI function is embedded and invisible to the user. ... Your electronic devices won’t be protected if there’s a ground ...

A GFCI-receptacle, if marked “No Equipment Ground.” A grounding type receptacle, if GFCI protected and marked “GFCI Protected” and “No Equipment Ground.” The equipment-grounding conductor plays no ...

Neutral-to-ground connection. Some neutral-to-ground voltage should be present under load conditions, typically 2V or less. If the voltage is zero with a load on the circuit, then check for a ...

Thanks to all arsians who've helped me decide on an UPS. <P>There is an indicator labeled: "Buidling Wiring Fault". When the UPS unit is plugged in, this light is lit.

These are the first such outlets to feature ground-fault interruption, and there’s a 20-amp version for kitchens and other locations that need more power. By Michael Brown Executive Editor ...

Certain precautions involving wiring, isolation, grounding, and shielding are relevant to all variable frequency drive (VFD) applications. A VFD reports a low-volts fault when the drive's dc link ...