What does "overhead distribution" refer to in electrical engineering?

"Overhead distribution" in electrical engineering refers to power lines and associated equipment that are placed above ground. This setup typically includes utility poles, overhead transformers, and power lines that transport electricity from substations to consumers.

This method of distribution is common due to its cost-effectiveness and ease of maintenance compared to underground systems, which can be more expensive and complicated to repair and install. Overhead distribution allows for straightforward access for inspection and repair, as well as a wide view of the network, making it easier to identify issues.

The other options mention different forms of power distribution: underground systems, which refer to power lines and equipment installed below the surface; fiber optics, which are used for communication rather than direct electrical power distribution. Therefore, option B accurately captures the definition and characteristics of overhead distribution in the context of electrical engineering.