CSLB General Building (B)SafetyHard
A contractor is using a scaffold that is 20 feet high. The scaffold has a base dimension of 5 feet by 5 feet. According to Cal/OSHA, what is the minimum distance this scaffold must be from unprotected energized power lines?
- A12 feet
- B6 feet
- C10 feet
- D8 feet
Show answer & explanationAnswer & explanation
Correct answer: C. 10 feet
Cal/OSHA requires a minimum clearance of 10 feet from unprotected energized power lines for scaffolds and other equipment, regardless of voltage, when working within 20 feet of the lines. For voltages over 50kV, the distance increases.
Why the other options are wrong
- A. While safer, this is not the minimum required distance by Cal/OSHA for general power lines.
- B. This distance is insufficient and unsafe for proximity to power lines.
- D. This distance is insufficient and unsafe for proximity to power lines.
Cal/OSHA Scaffold Clearance (Power Lines)
Scaffolds and other equipment must maintain a minimum 10-foot clearance from unprotected energized power lines, regardless of voltage.
- Applies to scaffolds and equipment
- Minimum 10 feet clearance
- Applies to unprotected energized power lines
- Distance increases for very high voltages
Memory trick: Ten feet clear, banish all fear!