Professional Answer: Sag and tension are inversely proportional; they are two sides of the same coin in overhead line design. Tension is the pulling force on the conductor between supports, while sag is the resulting downward curve. If the tension is too high, the sag will be minimal, but this can place excessive stress on the conductor and supporting structures, potentially leading to mechanical failure. Conversely, if the tension is too low, the sag will be too large, which can reduce the crucial clearance distance to the ground and other objects.

Our OHTL wire cable conductor tension stringing equipment is engineered to precisely control this balance, ensuring that conductors are installed with the optimal tension to achieve the required sag, thereby preventing over-stressing the line while maintaining safety clearances.