What is meant by an electrical service drop?

An electrical service drop refers to the overhead or underground power line that delivers electricity from the utility company's distribution system to a customer's premises. This is a critical component of electrical service because it connects the property to the grid, allowing for the transmission of electrical energy necessary for residential or commercial use.

This service drop can be either aerial—where the wires are suspended from poles—or underground, where the cables are buried beneath the surface. Understanding the service drop is essential for electric installations and safety, as it represents the point where utility service begins and where the responsibility of the customer starts after the meter.

In contrast, the other options defined different aspects of electrical systems. The connection from a generator to a transformer pertains to power generation and distribution rather than service delivery to a consumer. The distribution of electricity within a building refers to the internal wiring and circuits that provide electric service throughout the structure. Lastly, the main circuit breaker is a protective device located in the electrical panel that regulates and protects the flow of electricity in a home or building, rather than describing a connection point for service.