What is the purpose of a span in electrical installations?

The purpose of a span in electrical installations primarily revolves around connecting two adjacent poles. In electrical distribution, a span refers to the distance between two supports, such as utility poles, that carry overhead conductors. This connection is crucial for maintaining the integrity and function of the electrical system by ensuring that the wires are securely held in place and can effectively transmit electricity from one pole to another.

While spans indeed allow for the connection between poles, the other options touch on aspects that may not fully encapsulate the primary function of a span. Supporting additional weight and stabilizing broken lines are relevant in specific contexts but do not define the primary role of a span. It is fundamentally about maintaining the electrical line's alignment and connection between supports.