What defines a 'Service Point' in an electrical system?

A 'Service Point' in an electrical system is specifically defined as the point of connection between the utility's distribution system and the premises wiring. This is a crucial junction where the power provided by the utility enters the building and is then distributed to various circuits. Understanding this definition is essential for determining where responsibilities lie between the utility provider and the property owner, particularly in terms of safety, maintenance, and compliance with the NEC.

While the other choices mention relevant aspects of electrical service, such as where conductors might terminate at a building or where service conductors enter, these do not encapsulate the full responsibility or function described by the term 'Service Point.' The physical realities of how electricity is delivered and interconnected make the definition vital for both practical and regulatory purposes.