Romex Wire Size

T he electrical system in most homes and businesses is wired using sheathed insulated wire.
Romex wire size. The minimum recommended wire size for clothes dryer circuits is 10 gauge. However amperage decreases over distance so appliance manufacturers advise a larger wire gauge for circuits that extend beyond a distance from their source. What that number means is 14 gauge wire size 2 conductor which also includes a bare ground wire. Wire size amps wire type 3 0 gauge 200 amps service entrance 1 0 guage 150 amps service entrance and feeder wire 3 guage 100 amps service entrance and feeder wire 6 guage 55 amps feeder and large appliance wire.
The smaller the gauge number the larger the conductor size. Each wire size or wire gauge awg has a maximum current limit that a wire can handle before damage occurs. Wire size chart and current limits for wire gauges electrical current is measured in amps. Romex will be labeled with 12 2 or 12 3.
Romex is used for most lighting and outlet circuits in your home. Southwire 28827422 50 14 2 with ground romex brand simpull residential indoor electrical wire type nm b white 4 8 out of 5 stars 671 20 77 20 77 0 30 oz 26 20 26 20 get it as soon as wed sep 30. This website provides a wire size calculator voltage drop calculator wire ampacity charts and more. In general a circuit that runs 15 feet to reach the dryer requires larger wire usually 8 gauge.
Romex nm cable pronounced rome ecks and competing brands of cable contain two or more insulated conductors wires in a flexible plastic sheath that can be run through walls under floors through attics and. The first number indicates the gauge of the wire. This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps voltage distance and load. You choices are typically 10 12 or 14 gauge.