When you're preparing for any kind of electrical work, the first (and most important) step is to turn off the power. Most modern homes have circuit breakers, but if your home is older, it may still ...

The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts ...

Question: Our home is 40 years old. In my bedroom bath we have a four-way lamppost light fixture that holds four 60-watt bulbs. I was blow-drying my hair using a 1,500-watt dryer, and I heard a pop.