In which type of schematic do dashed lines not typically represent flow?

Wiring schematics typically utilize solid lines to represent electrical connections and the flow of current between components. Dashed lines in this context are often reserved for indicating a different type of relationship, such as a connection that is not physically on the same layer as the rest of the wiring or indicating a conditional connection, but they do not directly depict the flow of electricity.

In contrast, other schematic types often incorporate dashed lines to illustrate flow direction or different pathways. For example, in piping schematics, dashed lines can indicate process flow or other relevant information about the piping system. Hydraulic schematics also utilize dashed lines for flow or control paths, making the differentiation important.

Structural diagrams focus more on the physical arrangement and support of structures and may use dashed lines for showing hidden elements or optional features, but they tend to represent flow less frequently than piping or hydraulic schematics do.

Therefore, the rationale behind this choice is grounded in the distinct purpose of wiring schematics to accurately convey electrical connections without the introduction of ambiguity that dashed lines might create regarding flow.