What Is a Service Entrance?
A service entrance is the part of an electrical system that connects utility power to a building’s main electrical equipment. It includes the incoming conductors, connection point, and related equipment that deliver power to the main disconnect or service panel. The service entrance marks the boundary between the utility supply and the building wiring.
Quick Facts About Service Entrance
Category
Electrical service equipment
Used for
Bringing utility power into a building
Common confusion
The meter is only one part of the service entrance
Also called
Electrical Service Entrance, Service entrance conductors
Often discussed with
Electrical Service Upgrade
Key Takeaways About Service Entrance
- It connects utility conductors to the building’s main electrical equipment.
- The service entrance includes more than the meter alone.
- A service entrance is not the same as a branch circuit.
How Service Entrance Works
Service entrance equipment receives power from the utility and routes it toward the building’s main disconnect. The arrangement may include the service conductors, meter equipment, weatherhead, grounding connections, and service panel. Each part supports the path from the utility connection to the building’s electrical distribution system.
Related glossary terms: Electrical Meter, Load Center, Grounding Electrode.
The service entrance is checked as a connected system during an Electrical Service Upgrade. The condition of the conductors, terminations, enclosure, and grounding path can affect how the upgrade proceeds. A service entrance may be located overhead or underground, depending on how utility power reaches the property.
From the Service Electric team
When we assess a service entrance, we inspect the incoming conductors, connection points, enclosure, grounding path, and main disconnect as one system. We also look for heat damage, corrosion, loose terminations, and weather exposure that could affect an Electrical Service Upgrade.
Service Entrance in Practice: A Real-World Example
A homeowner planning an Electrical Service Upgrade may have an older service entrance with damaged conductors or an outdated enclosure. We review those parts together to determine which service equipment needs attention before the main electrical system is upgraded.
Related Services
Related Terms
Electrical Meter
An electrical meter is a utility-installed device that measures the electricity a property receives from the…
Load Center
A Load Center is a panel assembly that receives electrical power and distributes it through branch…
Grounding Electrode
A grounding electrode is a conductive connection between an electrical system and the earth. Common examples…
Weatherhead
Weatherhead is a weatherproof service-entrance fitting that covers the point where overhead electrical conductors enter a…
Service Electric
Have Questions About Service Entrance?
Contact Service Electric for practical guidance on Service Entrance and related 24 hour electrician work in Victoria.