Oklahoma Electrical Practice Exam

What is the minimum height power limited wire must be installed above the floor?

1. 6 feet

2. 7 feet

3. 8 feet

4. 9 feet

The correct answer is: 7 feet

Power limited wire is generally installed with consideration for safety and accessibility. The minimum height that power limited wire must be installed above the floor is 7 feet. This height requirement helps to ensure that the wiring is out of reach of people and prevents accidental contact that could lead to damage or safety hazards. In commercial and public buildings, adhering to these height standards becomes crucial for compliance with electrical codes and regulations. Installing power limited wire at this height minimizes the risk of the wire being treated as a potential trip hazard or being subjected to damage from equipment or foot traffic. Understanding these standards is essential for maintaining safety and functionality in electrical installations. The choice of 7 feet reflects a balance between accessibility for maintenance and overhead clearance in typical environments.