What type of wiring is typically used in residential homes?

Non-metallic sheathed cable is the prevalent choice for residential wiring due to its flexibility, ease of installation, and cost-effectiveness. This type of cable is commonly referred to as NM cable and is designed to carry electricity safely within homes. Its construction typically includes insulated conductors encased in a non-metallic sheath, providing protection from physical damage while reducing electrical noise. This makes it suitable for the majority of circuits found in residential settings, including lighting, outlets, and appliances.

In comparison, metallic conduit, while also used in some residential applications, is less common due to its higher cost and more complex installation process. Armored cable, while providing additional protection against physical damage, is typically used in specific scenarios where extra durability is needed, and is not the standard for most residential wiring. Coaxial cable, on the other hand, is primarily used for data transmission such as cable television and internet, not for power distribution in homes. Hence, the preference for non-metallic sheathed cable establishes its position as the standard wiring method in residential construction.