Definition
This is where utility power enters your home—it includes the meter and main breaker. The service entrance determines how much total electrical power your home can handle.
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The service entrance includes the utility line connection, meter (measuring electricity usage), main breaker (enabling complete power shutoff), and distribution to the electrical panel. Service entrance condition, amperage capacity, and safety are critical. Problems include improper connections, missing main breaker disconnect, inadequate capacity, and hazardous conditions. Inspectors assess service entrance condition and amperage. Upgrades require utility company coordination and a licensed electrician.
Pro Tip
Know where your main breaker is. In an emergency, you can cut all power to your house by flipping it.
Example
A home inspection revealed a service entrance with no main breaker disconnect—a serious code violation and safety hazard. An electrician installed a 200-amp main breaker disconnect, providing proper shut-off capability and upgrading service capacity.