Which term denotes using tree trunks as supports for electrical spans?

• A. Support for overhead conductor spans
• B. Minimum vertical clearance
• C. Porcelain or glass insulators
• D. Outdoor lamp holder installation

Answer: (A)

Overhead lines need physical supports to hold the conductors across a distance. Using a tree trunk as a support fits because it describes the role of a structure that carries the span of conductors. The term that best matches this concept is the support for overhead conductor spans—the general description of any structure, natural or man-made, that carries the line. The other options refer to different ideas: minimum vertical clearance is about how far the line must be from the ground or obstacles, porcelain or glass insulators are the components that electrically isolate the conductor from the support, and outdoor lamp holder installation concerns mounting lighting fixtures rather than supporting an overhead span.