What is a weatherhead in terms of electrical service?

A weatherhead refers to the structured point where electrical service connects to a building. This is typically located at the top of the mast that holds the service drop lines and provides an access point for electrical wiring to enter the building. It plays a crucial role in ensuring that the electrical service is safely connected while being protected from the elements, which is vital for maintaining the integrity and functionality of the electrical system.

The function of a weatherhead is to keep moisture and debris from entering the service cable, thus safeguarding the electrical system. It is also positioned to divert rainwater away from the connections to prevent water ingress, which could lead to electrical shorts or hazardous conditions.

The other options do not accurately define the weatherhead: the circuit breaker is a component that protects the circuit from overload; the protective covering for electrical wires refers more generally to insulation or conduit that shields conductors; and the meter installation point pertains to where the electrical meter is located, which is usually inside the building or just outside, but not specifically where service connects to the structure.