NEC Commercial Electrical Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

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.

What is the required distance from the outlet box within which non-metallic cables must be secured?

6 inches
8 inches
12 inches
18 inches

The correct answer is: 12 inches

Non-metallic cables must be secured within a distance of 12 inches from an outlet box. This requirement is outlined in the National Electrical Code (NEC) and is designed to ensure the safe and proper installation of electrical wiring. Securing cables within this distance helps prevent damage to the cables that could occur if they were left unsupported or loosely hanging, which could lead to wear and tear, and ultimately increase the risk of electrical hazards, such as short circuits or fires. The distance also aims to maintain a tidy and organized electrical installation, reducing potential entanglement hazards. This regulation reflects a balance between accessibility for future maintenance or alterations and the need for safety in the electrical system. Adhering to the 12-inch requirement ensures compliance with best practices outlined in the NEC, promoting safety and durability in electrical installations.