The overhead electrical conductors that run from the utility pole or transformer to the service entrance of a building to provide electrical power.

A service drop is the overhead electrical conductors that run from the utility pole or transformer to the service entrance of a building to provide electrical power, serving as the final connection between the utility distribution system and the customer’s electrical service equipment. This critical electrical infrastructure component consists of insulated or bare conductors that carry electricity from the utility’s distribution lines to the building’s service entrance, where it connects to the meter and main electrical panel. Service drops are fundamental elements in electrical power distribution where they provide the physical connection that enables electricity to reach residential, commercial, and industrial buildings, making them essential components for establishing electrical service and ensuring reliable power delivery to end users.

Service drops are utilized in various electrical service applications including residential homes where they provide standard 120/240-volt single-phase service for household electrical needs, small commercial buildings where they supply power for lighting, equipment, and general electrical loads, farm and agricultural operations where they serve barns, outbuildings, and irrigation systems, temporary installations including construction sites and events where portable electrical service is needed, mobile home parks and RV facilities where individual service drops serve each unit, and rural applications where long service drops may be required to reach buildings located far from utility poles. Each application requires appropriate conductor sizing, installation methods, and safety considerations based on electrical load requirements and local conditions.

The components and construction of service drops include service conductors that carry electrical current from the utility system to the building, typically consisting of two hot conductors and one neutral conductor for single-phase service, insulation systems that may include individual conductor insulation or bundled cable configurations for weather protection, support hardware including clamps, brackets, and strain insulators that secure conductors to utility poles and building attachment points, service entrance equipment including the service head or weatherhead where conductors enter the building, grounding systems that provide electrical safety and code compliance, and metering equipment that measures electrical consumption for billing purposes. Proper construction ensures safe, reliable electrical service delivery.

Fun Fact: The first electrical service drops were installed in the 1880s during the early days of electrical power distribution, and Thomas Edison’s original DC distribution system used overhead conductors similar to modern service drops, though at much lower voltages.

• Drop Ceiling
• Drop Cloth
• Service Panel