Electrical Safety Tips

Breaker size, wire gauge, and the small details that prevent big problems.

Use these basics to understand safer circuit planning, then call a licensed electrician when a repair, upgrade, or concern affects the electrical system.

Never override wiring with a larger breaker.

If 12-gauge wire is rated for a 20 amp circuit, placing it on a 30 amp breaker can let the wire overheat before the breaker responds. Breakers and wire size need to match.

Ask about an electrical concern

Match wire to breaker

Breakers protect the wiring, not the appliance. Oversizing a breaker for the wire can create overheating and fire risk before the breaker trips.

Know basic wire size relationships

Common pairings include 14-gauge wire for 15 amp circuits, 12-gauge wire for 20 amp circuits, and 10-gauge wire for 30 amp circuits.

Use the 80% rule for continuous loads

For loads expected to run for 3 hours or more, a circuit should generally be planned around 80% of its maximum capacity.

Tight connections matter

Loose terminals can cause arcing, overheating, nuisance trips, and failures. Electrical connections should be secure and properly torqued.

Inspect and test periodically

Look for rust, discoloration, or burning around panels, test GFCI devices periodically, and consider a professional scan or inspection when concerns appear.