Running Electric Cable Underground

At the garage repeat steps 3 through 7 to install the plastic conduit and cable.

Running electric cable underground.

Electrical cable depth options. From inside the basement pull the cable all the way to the main electrical panel. Underground cable for running electrical power to a remote location can be installed at different depths depending on the type of conduit and type of wire used. Decide how much digging you re prepared to do which determines the type of wire you need to use.

Determine what the power needs of the outbuilding will be. Underground wire for a residential circuit usually is installed with underground feeder uf cable which is rated for outdoor use and direct burial such an installation is typical when running a circuit to an outdoor location such as a garage shed or other outbuilding or to a yard light or water feature. For a 6 in deep trench use galvanized rigid metal electrical conduit with individual conductors inside. This shed needs 240v and 60 amps.

In general bury metal conduits at least 6 inches below the soil surface. Running underground cables in metal conduits approved for buried cables is the most expensive method but also the one requiring the least digging. A second method 12 in. Deep pvc conduit method we show is about the easiest and most practical for running a typical 15 amp line.

There are several different methods for safely running the underground wiring but the 12 in. Go outside and lay the cable into the trench running it all the way to the garage. What kind of electrical loads will there be. Will it need 240v power or is 120v enough.

The codes shown are examples only and may not be current or accurate for your application or jurisdiction. Steps to run power to a shed. Understanding the importance of proper underground wiring nec 300 3 all conductors of the same circuit including grounded conductors shall be contained in the same raceway cable or trench. Deep direct burial of type uf underground feeder cable is another easy alternative.

Secure the cable to the overhead joists with cable staples. You may also run them at a depth of 4 inches under a 4 inch concrete slab. Secure the cable to the overhead joists with cable staples. Extending electrical service to a detached garage or other outbuilding isn t much different than adding a circuit inside the house with one important exception running underground cable.

From inside the basement pull the cable all the way to the main electrical panel. At the garage repeat steps 3 through 7 to install the plastic conduit and cable.