Which type of electrical drawing illustrates the electrical distribution system of a multilevel building?

A riser diagram is specifically designed to depict the vertical distribution of electrical systems within a multilevel building. It illustrates how electrical components, such as panels and conduits, connect from one floor to another. This visual representation is essential for understanding how electrical distribution is implemented throughout the building, as it highlights the paths that electricity takes and how various floors are linked to the main power source.

In contrast, a schematic diagram is a more generalized representation of electrical circuits, focusing on the function and interconnection of components but not indicating their physical arrangement in a multi-level structure. A block diagram provides a high-level overview, showing components and their relationships without specific details on the electrical paths or distribution. A one-line diagram simplifies the representation of power systems, showing one line to indicate how various components are connected, but it typically does not convey the vertical stacking of components across multiple floors in the same clear manner as a riser diagram does. Thus, the riser diagram is the most appropriate choice for illustrating the electrical distribution system in a multilevel building.