Red Seal Tower Crane Operator Practice Exam

What should be the minimum clearance from power lines when operating a tower crane?

1. At least 5 feet

2. At least 10 feet

3. At least 15 feet

4. At least 20 feet

The correct answer is: At least 10 feet

When operating a tower crane, maintaining a safe distance from power lines is crucial for preventing electrical hazards, including electrocution and fire. The correct minimum clearance of at least 10 feet aligns with established safety regulations and guidelines. This distance accounts for the risk posed by electrical arcs, which can occur even without direct contact with power lines. This clearance allows for safe operation in the vicinity of live power lines, ensuring that the crane's boom and load do not inadvertently come too close to these hazards. The other distances provided do not meet the commonly accepted regulations, which highlight that 10 feet is the threshold for safety in most circumstances. The larger distances suggested do not reflect the minimum requirements set by safety standards and could lead to unnecessary operational limitations and inefficiencies on site. Therefore, the importance of adhering to this minimum clearance cannot be overstated, as it plays a significant role in ensuring the safety of both the crane operator and personnel nearby.