What is nm-b wire?

NM-B wire, also known as non-metallic sheathed cable, is a type of electrical cable commonly used in residential buildings to supply power to outlets, switches, and appliances. It consists of two or more insulated conductors enclosed in a plastic sheath, which provides protection from moisture, heat, and physical damage.

NM-B wire is generally rated for use in dry locations and is not suitable for outdoor or wet applications. It is available in various sizes, typically ranging from 14 to 6 gauge, with larger gauges able to carry more current. The wire may also be color-coded to indicate its size and purpose, with black or red typically used for hot conductors, white for neutral, and green or bare for ground.

When installing NM-B wire, it is important to follow local building codes and regulations to ensure safe and proper installation. This may include securing the wire to framing members, installing junction boxes, and using appropriate connectors and fasteners.

Overall, NM-B wire is a versatile and cost-effective option for residential electrical wiring projects, providing reliable power distribution in a variety of applications.