OSHA 10-Hour Construction ReviewScaffoldsMedium
A scaffold is being erected near power lines. What is the minimum safe clearance distance that must be maintained between the scaffold and power lines carrying 50 kV or less?
- A20 feet
- B5 feet
- C8 feet
- D10 feet
Show answer & explanationAnswer & explanation
Correct answer: D. 10 feet
OSHA requires a minimum clearance of 10 feet between scaffolds and energized power lines carrying 50 kV or less. This distance prevents accidental contact and electrocution.
Why the other options are wrong
- A. While 20 feet is safer, it is not the minimum required by OSHA; this distance is for lines over 50 kV.
- B. 5 feet is too close and does not meet OSHA's minimum clearance requirements for power lines.
- C. 8 feet is insufficient and poses a significant electrocution hazard.
Scaffold Power Line Clearance (50 kV or less)
The minimum safe distance required between any part of a scaffold and energized power lines carrying 50 kilovolts (kV) or less.
- Minimum 10 feet clearance
- Applies to lines 50 kV or less
- Prevents electrocution hazards
Memory trick: Fifty kV or less, ten feet, no stress!