Where should a wind velocity indicating device be mounted on a tower crane?

Mounting a wind velocity indicating device at or near the top of the crane is essential for accurate wind speed measurement. The top of the crane is where wind gusts are likely to be stronger and more representative of the conditions affecting the crane's performance. Wind can vary significantly with height due to factors such as terrain and buildings; therefore, obtaining data from the highest point allows for the most reliable assessment of wind conditions that directly impact crane operations. This placement enables operators to make informed decisions about whether it's safe to operate the crane under the current wind conditions, enhancing safety on the job site.

Placing the device at the base of the crane or on the ground near the crane would not provide a true representation of wind conditions experienced at the working height. Similarly, having the device at the operator's station would limit the operator's ability to gauge the real-time effects of wind at the crane's lifting point. Thus, situating the wind velocity indicating device at or near the top of the crane is the best practice for ensuring safety and operational effectiveness.