What is the primary role of service equipment in a building?

The primary role of service equipment in a building is to disconnect the electrical supply from the utility. Service equipment typically includes components such as service disconnect switches, circuit breakers, or fuses that provide a means to safely isolate the building's electrical system from the utility supply. This allows for maintenance, repairs, or emergencies involving the electrical system without risking harm to personnel or damage to equipment. By making it possible to effectively cut off the incoming power supply, the service equipment plays a crucial role in ensuring safety and compliance with electrical codes.

Options related to increasing electrical supply, reducing energy costs, or enhancing electrical capacity do not encompass the fundamental purpose of service equipment, which is centered around the safe disconnection and connection of power. While these aspects may be part of a broader electrical system's capabilities, they are not the primary function of service equipment itself.