Nonmetallic-sheathed cable must be secured in place at intervals not exceeding what distance?

Nonmetallic-sheathed cable must be secured in place at intervals not exceeding what distance?

• A. 3 feet
• B. 4 1/2 feet
• C. 6 feet
• D. 12 inches

Answer: (B)

Nonmetallic-sheathed cable, commonly known as NM cable or Romex, must be secured at intervals not exceeding 4 1/2 feet. This requirement is established to ensure the safety and stability of the wiring within residential and commercial installations. Securing the cable helps to prevent mechanical damage and ensures that the installation maintains its integrity over time. By adhering to this specific distance for securing nonmetallic-sheathed cable, electricians can help to mitigate hazards associated with movement, strain, or accidental contact that could lead to short circuits or other electrical failures. Other distances, such as 3 feet or 6 feet, do not meet the established standards for securing NM cable, as they either do not provide the necessary support or could potentially lead to safety issues. The requirement of 4 1/2 feet strikes a balance between adequate support and practicality for installation purposes in various environments.

Nonmetallic-sheathed cable, commonly known as NM cable or Romex, must be secured at intervals not exceeding 4 1/2 feet. This requirement is established to ensure the safety and stability of the wiring within residential and commercial installations.

Securing the cable helps to prevent mechanical damage and ensures that the installation maintains its integrity over time. By adhering to this specific distance for securing nonmetallic-sheathed cable, electricians can help to mitigate hazards associated with movement, strain, or accidental contact that could lead to short circuits or other electrical failures.

Other distances, such as 3 feet or 6 feet, do not meet the established standards for securing NM cable, as they either do not provide the necessary support or could potentially lead to safety issues. The requirement of 4 1/2 feet strikes a balance between adequate support and practicality for installation purposes in various environments.