Electricity enters your home from the Local Distribution Company through the service entrance at the main switch. From the main switch, the panelboard or fusebox splits power into circuits that distribute electricity throughout your home. Each circuit distributing power throughout your home is protected by a fuse or circuit breaker. Fuses and circuit breakers detect short circuits and overloading and will blow (fuse) or trip (circuit breaker).
Modifications to your electrical panel should be done by a licensed electrical contractor or electrician and should be inspected by the Electrical Safety Authority.
Fuses that regularly blow or circuit breakers that regularly trip should be checked by a licensed electrical contractor or electrician.
Upgrades to your panel to increase service size (amperage) should be done by a licensed electrical contractor or electrician, and should be inspected by the Electrical Safety Authority.
