What aspect does a wiring diagram primarily focus on?

A wiring diagram primarily focuses on the layout of circuits. This type of diagram provides a visual representation of the physical arrangement of electrical components and the connections between them. It illustrates how devices are interconnected and the routes that electrical wires take, allowing for a clear understanding of the system's design and function.

Understanding the layout is crucial for installation, troubleshooting, and maintenance because it shows the precise locations of components and their interrelations. A wiring diagram makes it easier to visualize how circuits will operate in practice, enabling technicians and engineers to work effectively with electrical systems.

In contrast, the other options address different aspects of electrical systems that are important but not the main focus of a wiring diagram. Component specifications involve the characteristics and ratings of individual parts, power consumption refers to the amount of power that devices use during operation, and electrical flow rates pertain to the measurement of current in a circuit. While these elements may be relevant in the broader context of electrical design, they do not pertain directly to the layout that a wiring diagram aims to illustrate.