Final answer:
A 10-3 non-metallic sheathed cable consists of three insulated wire conductors and an outer layer of non-metallic sheath that protects the conductors.
Step-by-step explanation:
A 10-3 non-metallic sheathed cable consists of three insulated wire conductors, each with a size of 10 American Wire Gauge (AWG), and an outer layer of non-metallic sheath that protects the conductors. The three wire conductors are typically used for hot, neutral, and grounding connections.