The outlet that saves lives
A Ground Fault Circuit Interrupter (GFCI) detects when electrical current is flowing through an unintended path (like through a person touching a faulty appliance near water) and shuts off power in 1/40th of a second. CPSC estimates that GFCIs could prevent over half of home electrocution deaths.
NEC requires GFCI protection in kitchens (within 6 feet of a sink), bathrooms, garages, outdoors, basements, laundry areas, and near any water source. Test monthly by pressing the TEST button. If the outlet does not trip, replace it.
What dangerous wiring looks like
Warm or hot outlets and switches indicate an unsafe wiring condition. Unplug devices and do not use the outlet until a licensed electrician inspects it. Frequent breaker trips or blown fuses mean a circuit is overloaded or there is a wiring fault. Buzzing sounds from outlets or switches indicate arcing, which is a fire hazard.
Flickering lights, a burning smell from outlets, discolored or melted outlet covers, and sparks when plugging in devices are all signs that require professional evaluation.
The line between DIY and professional
Replacing a light switch or outlet cover is generally safe for a homeowner. Anything beyond that, including adding circuits, replacing breakers, running new wire, or working inside the panel, should be done by a licensed electrician. At least 22 states restrict residential electrical work to licensed professionals even in owner-occupied homes.
After any flood, earthquake, or event that may have damaged wiring, have the electrical system inspected before restoring power.
- Test GFCIs monthly by pressing the TEST button
- Warm outlets, buzzing, or burning smell = stop using, call an electrician
- Frequent breaker trips mean overload or wiring fault
- Replace a switch: DIY. Add a circuit: licensed electrician
- After any flood or earthquake, inspect electrical before restoring power
- Home Electrical Safety — CPSC electrical safety checklist.
- Electrical Safety — NFPA home electrical safety.