How should telephone lines be installed?

The recommended method for installing telephone lines is to carry them on insulators opposite trolley wire and high voltage cables. This practice ensures that telephone lines are kept at a safe distance from potential electrical hazards associated with high voltage power lines. By using insulators, the lines are protected from electrical interference and potential arcing, which can compromise communication integrity and safety.

Additionally, positioning the telephone lines opposite the trolley wire and high voltage cables prevents electromagnetic interference, allowing for clearer signal transmission. It also reduces the risk of accidental contact or short circuits between different types of wiring, which can pose safety risks in mining operations or other environments where electrical equipment is prevalent.

The other methods, such as installing lines without insulation or directly on the same poles as power lines, present significant safety concerns and may violate regulations. Burying telephone lines, while sometimes practiced, is not always feasible due to various conditions, such as terrain or the need for maintenance, making the recommended approach the most effective and safe for operational use.