This article discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, ...

First on the electrical wire color code is black. “Black wires are most used as ‘hot’ wires in residential systems,” says master electrician Allyson Saling with Frontdoor home services app. “Hot or ...

All questions and answers are based on the 2011 NEC. Q. Is the service neutral conductor allowed to perform bonding between the meter can and disconnect? A. Yes. Electrical continuity at service ...

First, what's a subpanel? In my words, a subpanel is an electrical panel wired downstream from the Service Equipment, which is more commonly known as the main panel. For a lengthy discussion on the ...

The way a light switch is wired depends on whether the power comes into the light box or the switch box first. These two ...

Older homes sometimes lack a neutral wire (which is typically white) in every box where a light switch is installed. That can be big problem for smart switch upgrades, which almost universally require ...

When clients call you because operating problems on pieces of their 120V equipment cause them to suspect their facility's power supply, you have to decide where to start your investigation. Don't ...

Light flicker inside a building is usually associated with loose wiring, faulty switches, or poor electrical connections. But there are many situations in which lights flicker even when the ...