When reading wire sizes, which number indicates the number of conductors in the wire?

When reading wire sizes, which number indicates the number of conductors in the wire? Correct Answer Second

• When reading wire sizes, the second number indicates the number of conductors in the wire.
• The labels on the outer sheathing of a cable indicate the size, or gauge, of the individual conducting wires, the wire material, the number of wires contained inside the cable, the maximum voltage rating, and whether there is a ground wire present or not.
•  The wire size and number of wires are indicated with numbers. A ground wire is indicated by "G," "w/G," or "with Ground." The wire material is indicated by "CU" for copper and "AL" for aluminum.
• Some examples are given below:

1. 14-2G: Cable contains two insulated wires plus a ground wire; the wires are 14-gauge.
2. 14-3G: Cable contains three insulated wires plus a ground wire; the wires are 14-gauge.
3. 12-2 w/G: Cable contains two insulated wires plus a ground wire; the wires are 12-gauge.
4. 12-3 w/G: Cable contains three insulated wires plus a ground wire; the wires are 12-gauge.
5. 600 V: Cable is rated for a maximum of 600 volts; this is standard for residential NM cable.
6. TYPE NM-B: Non-metallic type-B cable; this is the current standard for residential installations. "NM-B" cable is more heat-resistant than older "NM" cable.