Underground Electrical Cable Types

Industry standard for unshielded twisted pair cables utp for connecting phone computer home automation and a v networks.

Underground electrical cable types.

For a 6 in deep trench use galvanized rigid metal electrical conduit with individual conductors inside. Jacketed in insulated pvc this cable is resistant to sunlight for durability. For higher voltages 3 cored constructions become too bulky and hence even with some limitations we employ single cored cables. Type use cable is usually black and is most often used for buried lines that bring power from the utility s transformer to individual houses.

A second method 12 in. Underground cables are usually employed to deliver 3 phase power. 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. The most common types of direct burial cable used in residential projects are underground service entrance use and underground feeder uf.

Lv stands for low voltage and this underground cable is suitable for outdoor accent lighting landscape lighting and security lighting. Underground feeder cable is designed this 250 ft. Category 5e cable. Nec 300 5 underground wiring conduits emerging from the ground conductors emerging from underground shall be installed in rigid metal conduit intermediate metal conduit or schedule 80 rigid nonmetallic conduit from 18 inches below grade or the minimum cover distance to the point of termination above ground.

Beyond that insulation required for the cable is too much. The copper wire serving is the neutral. Used for direct burial and suitable for sunlight. 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.

Applications not to exceed 150 volts. Useb90 useb 90 underground service entrance cable consists of two compact aluminum conductors individually insulated with rw90 xlpe insulation laid in parallel with a helical plain copper wire serving and an overall pvc jacket covering. Available between 16 and 8 gauge. The product meets the useb 90 cable requirements of csa.

Underground feeder cable is designed to be directly buried into the ground as a non metallic sheathed cable. Deep pvc conduit method we show is about the easiest and most practical for running a typical 15 amp line. Underground wire for a residential circuit usually is installed with underground feeder uf cable which is rated for outdoor use and direct burial. This cable is ul listed.

Usually called cat 5e or ethernet cable. Deep direct burial of type uf underground feeder cable is another easy alternative. Landscape lighting lv cable. A zip cord type of electrical cable where two or more electrical conductors are individually insulated in a plastic or rubber that can be easily pulled apart.