Grounding Electrical Boxes
Different approaches can work as long as you maintain continuity in the ground.
Pigtails for Switches?
Is there any advantage to wiring switches with pigtails?
Wind- and Solar-Powered Generator
Batteries that are recharged by solar panels and a wind generator supply DC power...
Q&A: Service-Entrance Cable Under a Garage
Q: The proposed location for my client's new detached garage is right on top of a buried service-entrance cable. The electric meter is mounted on a pedestal about 100 feet from the house, and a conduit runs to the house through the area where the garage —
Moving an Electrical Box
What's the solution when the location of an electrical outlet needs to be adjusted...
Using A Volt-Ohm Meter
A master electrician describes how to trace wires, identify circuits, and diagnose common job-site electrical problems.
Q&A: Circuit Breaker Problems
Q: In a residential remodel, we replaced the electrical service panel. Within five days, two of the 15-amp breakers tripped and could not be reset. The breakers were determined to be "defective" and had to be replaced. What could be causing this problem?
Q&A: Arc-Fault Circuit Interrupters
Q: What is an arc-fault circuit interrupter? Are they expensive? Are they subject to nuisance tripping?
Q&A: Tying into Old Armored Cable
Q: Can you keep old armored-cable circuits, or should you replace them? If you...
Q&A: Upgrading Two-Prong Outlets
Q: How about upgrading old two-prong ungrounded outlets from the ’70s and back?