Which statement is true about the use of pantograph poles?

The correct answer is that all of the statements regarding the use of pantograph poles are true. Pantograph poles are critical components that facilitate the transfer of electricity from overhead lines to trains, and their proper handling is essential for safety.

Firstly, keeping the pantograph poles clean and dry is crucial because any dirt, moisture, or debris can interfere with the electrical connection, potentially causing malfunctions or power interruptions. A clean surface ensures efficient and uninterrupted operation, which is vital for safe train operations.

Secondly, maintaining a safe distance from the hook, specifically keeping hands at least 6 feet away, is a safety precaution to prevent accidental contact that could result in electric shock or injury. The high-voltage environment surrounding pantographs necessitates strict adherence to safety protocols.

Lastly, avoiding contact with clothes or other parts of the body is another safety measure aimed at reducing the risk of electric shock. Any contact with conductive materials could lead to dangerous situations. Keeping physical proximity to a minimum helps ensure that safety standards are met, protecting personnel during operation.

Therefore, all these statements underscore the importance of safety and operational efficiency when working with pantograph poles, making the cumulative answer the most appropriate choice.