Which type of wire is commonly used for residential wiring?

Which type of wire is commonly used for residential wiring?

• A. Metallic conduit
• B. Twisted pair cable
• C. Non-metallic sheathed cable (Romex)
• D. Shielded cable

Answer: (C)

Non-metallic sheathed cable, commonly known as Romex, is the standard wiring used in residential construction. It consists of two or more insulated conductors and a bare ground wire, all encased in a non-metallic sheath. This type of cable is favored in residential settings due to its ease of installation, flexibility, and cost-effectiveness. Romex is designed to be run inside walls, ceilings, and floors, offering sufficient protection from common household conditions. Its non-metallic covering also provides a degree of moisture resistance, which is beneficial in various residential applications. Additionally, the range of available wire sizes allows it to meet different electrical load requirements in homes. The other options listed serve different purposes or applications. Metallic conduit is often used in commercial or industrial settings for added protection against physical damage, while twisted pair cable is primarily used for telecommunications and networking rather than electrical power. Shielded cable is also mostly utilized in specialized applications to protect signals from electromagnetic interference, rather than the general residential electrical wiring needs addressed by Romex.

Non-metallic sheathed cable, commonly known as Romex, is the standard wiring used in residential construction. It consists of two or more insulated conductors and a bare ground wire, all encased in a non-metallic sheath. This type of cable is favored in residential settings due to its ease of installation, flexibility, and cost-effectiveness.

Romex is designed to be run inside walls, ceilings, and floors, offering sufficient protection from common household conditions. Its non-metallic covering also provides a degree of moisture resistance, which is beneficial in various residential applications. Additionally, the range of available wire sizes allows it to meet different electrical load requirements in homes.

The other options listed serve different purposes or applications. Metallic conduit is often used in commercial or industrial settings for added protection against physical damage, while twisted pair cable is primarily used for telecommunications and networking rather than electrical power. Shielded cable is also mostly utilized in specialized applications to protect signals from electromagnetic interference, rather than the general residential electrical wiring needs addressed by Romex.