During tension stringing, what element is critical to maintaining conductor elevation?

During tension stringing, the application of tension is crucial for maintaining conductor elevation. When the conductor is strung between towers or poles, applying the right amount of tension ensures that it does not sag excessively under its own weight. This tension allows the conductor to maintain a specified height above the ground or other structures, which is essential for both safety and functionality.

Applying appropriate tension is also important for managing the thermal expansion and contraction of the conductor, which can occur due to temperature changes. If too much tension is applied, it could lead to undue stress on the conductor and associated hardware, while insufficient tension may result in sagging that can cause clearance issues or even contact with vegetation or other obstacles.

The other options, while they do play roles in the overall process of stringing conductors, do not directly influence the elevation as critically as tension does. The weight of the conductor itself is a factor, but it is the tension that counteracts this weight to achieve proper height. Similarly, while insulation clamps and support poles are essential for the stability and safety of the installation, they do not directly control the elevation of the conductor during the stringing process.