What is the function of a weatherhead in a service drop?

A weatherhead serves an important function in electrical service drops by keeping water from entering the system. It is the component installed at the top of a service mast, where the electrical wires from the utility company enter a building. The design of the weatherhead directs rainwater away from the entry point, preventing moisture from seeping into the electrical conduit. This is vital because water intrusion can lead to electrical short circuits, corrosion of electrical components, and other safety hazards.

While other options touch on concepts related to electrical systems, they do not directly correlate to the specific role of a weatherhead. Stabilizing voltage levels, increasing power distribution efficiency, and reducing grounding issues are all important considerations in electrical engineering, but they do not pertain to the primary prevention of water ingress that a weatherhead is specifically designed to achieve.