What is Service Entrance Cable?
Service Entrance Cable is a type of electrical wiring used to bring power from the electrical utility’s service drop or underground service lateral into a building. It connects the exterior power supply to the main electrical panel, making it a critical component in both residential and commercial installations.
There are two main types: SE (Service Entrance) cable, which is commonly used above ground and features a weather-resistant jacket, and USE (Underground Service Entrance) cable, which is designed for direct burial. These cables must meet strict code requirements for insulation, grounding, and installation to ensure safe operation under high electrical loads.
Electricians use Service Entrance Cable during new construction, panel upgrades, or service relocations. Proper sizing and installation of this cable are essential to prevent overheating and ensure reliable, code-compliant power distribution to the building’s electrical system.
