Which of the following is NOT part of the overhead power service?

Answer: A — Pull box or boxes

The correct answer highlights a key distinction in the infrastructure of overhead power service. While pull boxes are essential components in many electrical systems, they are primarily used for below-ground applications or to house connections and splices in underground distribution networks. In contrast, components like power supply wires, conduit risers with weatherheads, and meter housing are integral to the overhead power service setup. Power supply wires bring electrical power from the utility lines to the service point of the property. The conduit riser facilitates the transition from underground or street-level wiring to the overhead lines above, serving as a protective pathway. Meanwhile, the meter housing is where the utility meter is installed, measuring electrical consumption. Each of these components plays a direct role in delivering power through an overhead service configuration. Thus, a pull box, which does not serve a function in the overhead aspect of power delivery, is the item that does not belong in this context. This distinction emphasizes the importance of understanding the components specific to different electrical system designs.