Which of the following types of wiring is suitable for installation on the surfaces of buildings?

Which of the following types of wiring is suitable for installation on the surfaces of buildings?

• A. Type SE Cable
• B. Type NM Cable
• C. Type MC Cable
• D. Type UF Cable

Answer: (C)

Type MC Cable, or Metal-Clad Cable, is designed specifically for surface installations and is suitable for adequately protecting conductors in harsh environments, as it consists of a metal sheath that provides mechanical protection. This characteristic makes it well-suited for outdoor use, including surface wiring on buildings, where exposure to physical damage or environmental factors may occur. The metal sheath of Type MC Cable not only offers durability but also serves as a grounding means. In comparison, while Type SE Cable and Type NM Cable have their own applications, they are typically used for specific conditions that do not include surface installation against building exteriors. Type UF Cable is intended for underground use and while it can be used above ground in some cases, it does not offer the same level of protection and versatility as MC Cable for surface-mounted applications thereby reinforcing the suitability of Type MC for the question asked.

Type MC Cable, or Metal-Clad Cable, is designed specifically for surface installations and is suitable for adequately protecting conductors in harsh environments, as it consists of a metal sheath that provides mechanical protection. This characteristic makes it well-suited for outdoor use, including surface wiring on buildings, where exposure to physical damage or environmental factors may occur. The metal sheath of Type MC Cable not only offers durability but also serves as a grounding means.

In comparison, while Type SE Cable and Type NM Cable have their own applications, they are typically used for specific conditions that do not include surface installation against building exteriors. Type UF Cable is intended for underground use and while it can be used above ground in some cases, it does not offer the same level of protection and versatility as MC Cable for surface-mounted applications thereby reinforcing the suitability of Type MC for the question asked.