Shut power OFF at the main service panel or the main fuse box before beginning any work.
Safety should be the primary concern of anyone working with electricity. Although most household electrical repairs are simple and straightforward, always use caution and good judgment when working with electrical wiring or devices. Common sense can prevent accidents.
The basic rule of electrical safety is: Always turn off power to the area or device you are working on. At the main service panel, remove the fuse or shut off the circuit breaker that controls the circuit you are servicing. Then check to make sure the power is off by testing for power with a voltage tester. Tip: Test a live circuit with the voltage tester to verify that it is working before you rely on it. Restore power only when the repair or replacement project is complete.
Follow the safety tips shown on these pages. Never attempt an electrical project beyond your skill or confidence level. Never attempt to repair or replace your main service panel or service entrance head. These are jobs for a qualified electrician and require that the power company shut off power to your house.
Shut power OFF at the main service panel or the main fuse box before beginning any work.
Create a circuit index and affix it to the inside of the door to your main service panel. Update it as needed.
Confirm power is OFF by testing at the outlet, switch, or fixture with a voltage tester.
Use only UL-approved electrical parts or devices. These devices have been tested for safety by Underwriters Laboratories.
Wear rubber-soled shoes while working on electrical projects. On damp floors, stand on a rubber mat or dry wooden boards.
Use fiberglass or wood ladders when making routine household repairs near the service mast.
Extension cords are for temporary use only. Cords must be rated for the intended usage.
Breakers and fuses must be compatible with the panel manufacturer and match the circuit capacity.
Never alter the prongs of a plug to fit a receptacle. If possible, install a new grounded receptacle.
Do not penetrate walls or ceilings without first shutting off electrical power to the circuits that may be hidden.
