Underground Electrical Wire Types

Copper wire has lower resistance than aluminum wire but chances are good that you ll be using copper in any case.

Underground electrical wire types.

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. A second method 12 in. The product meets the useb 90 cable requirements of csa. The copper wire serving is the neutral.

10 2 uf b wire can be used 500 ft. Wire size is another factor. Smaller diameter wires have more resistance than larger diameter wires. The jacketed wire is sun and uv resistant.

For a 6 in deep trench use galvanized rigid metal electrical conduit with individual conductors inside. Deep pvc conduit method we show is about the easiest and most practical for running a typical 15 amp line. Typically considered neutral but can sometimes be used as a hot lead in certain situations such as switch loops. Deep direct burial of type uf underground feeder cable is another easy alternative.

Nec 300 5 underground wiring conduit movement protection where subject to movement direct buried cables or raceways shall be arranged to prevent damage to the enclosed conductors or connected equipment. Direct burial cable is a special type of electrical wiring or cable that is designed to be buried in a trench underground. 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. 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.

10 2 uf b wire can be used outdoors underground and in wet areas. The individual electrical conducting wires inside the cable are encased in a solid thermoplastic sheath that seals out moisture and protects the conducting wires within. Type uf b cable is made for direct burial underground without the use of conduit or other piping and is also gray in color and is marked as type uf b cable to denote the difference between it and the regular type uf cable which is not suitable for direct burial outside of conduit or the proper piping material. This type of cable is combination of h type and s l.

There are several different methods for safely running the underground wiring but the 12 in. In these cables each core is insulated with impregnated paper and provided with seperate lead sheaths.