Which of the following best describes the connection at the service point?

The correct choice successfully captures the essence of the service point as it pertains to electrical systems. The service point serves as the crucial interface where the electrical utility’s supply connects to the facility's internal distribution system. This involves the transition of electrical power from the utility provider to the infrastructure of the building, ensuring that electricity is appropriately routed and distributed to various circuits and systems within the building.

Understanding the concept of the service point is vital for load calculations, as it determines how power is supplied and distributed after leaving the utility's control. The service point is where responsibilities shift from the utility to the building owner or operator, with specifications and standards guiding how these systems must be set up for safety, efficiency, and compliance with regulations.