What is Weatherhead?
A weatherhead, also known as a service head or service entrance cap, is a waterproof cap installed at the top of a service mast where overhead power lines enter a building. Its purpose is to protect electrical cables from rain, snow, and moisture as they connect from the utility pole to the service panel inside a home or commercial building.
This component is essential in residential and commercial electrical systems that rely on overhead service. It is typically constructed of metal or plastic and has a downward-facing opening that prevents water from following the wires into the conduit. The weatherhead plays a critical role in maintaining safety and reliability by preventing moisture from causing shorts or corrosion in the service entrance.
Electricians must ensure the weatherhead is properly sealed and securely attached. It’s an important part of code-compliant electrical installations, particularly in areas prone to harsh weather conditions.
