NEC Commercial Electrical Practice Test

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Prepare for the NEC Commercial Electrical Test with multiple choice questions each with detailed explanations. Study efficiently to excel in your exam!

Practice this question and more.

How far must nonmetallic-sheathed cable be secured within a fitting or cabinet?

12 inches
6 inches
18 inches
3 inches

The correct answer is: 6 inches

Nonmetallic-sheathed cable, often referred to as NM cable or Romex, must be secured within a fitting or cabinet at a distance not exceeding 6 inches. This requirement ensures that the cable is properly anchored to provide mechanical protection and to prevent strain on the electrical connections. Proper securing of the cable helps to minimize the risk of damage or disconnection at the entry point into the fitting or cabinet, which is essential for maintaining the integrity of the electrical system. The National Electrical Code (NEC) outlines these specifications to promote safety and efficiency in electrical installations. This rule applies to the management of cable pathways within junction boxes and cabinets, reinforcing the importance of installation practices that safeguard against potential hazards related to unsecured cables.