Where is a protector tube normally placed on a transmission line?

A protector tube is typically placed alongside the insulator string on a transmission line. This positioning is crucial for ensuring the effective operation of the protective equipment, which monitors and responds to any electrical faults or disturbances. By locating the protector tube alongside the insulator, it allows for optimal sensitivity to voltage and current changes that may indicate a fault condition.

Placing the protector tube above or below the insulator might reduce its effectiveness in monitoring the electrical parameters necessary for protection. Positioning it in the middle of the line would hinder its capability to detect issues related to both the insulator and the line itself, thereby compromising the protective function it serves. Overall, the correct placement alongside the insulator string ensures that the protector tube can effectively monitor performance and enhance system reliability.