Which distribution design is characterized by multiple interconnected paths, increasing reliability but often more complex and costly?

• A. Radial
• B. Mesh
• C. Network
• D. Loop

Answer: (C)

The main idea is redundancy through multiple interconnections. When a distribution design has several paths between the source and the load, power can be rerouted if one path is out of service. This interconnected web increases reliability because a single fault doesn’t necessarily cut off supply to customers—another route can carry the load. But that same redundancy adds complexity: more switching devices, protection coordination, and control logic are required to prevent issues like circulating currents or backfeed, and to isolate faults correctly. The result is a higher initial cost and higher ongoing maintenance, even though service continuity improves. This combination of multiple paths and greater protection and control needs is what characterizes a mesh distribution design. In contrast, radial designs have a single path and are cheaper but less resilient, which is why choosing between these topologies involves balancing reliability against complexity and cost.