Precise conductor sag measurement and control are absolutely critical for ensuring required ground clearances, preventing conductor overstress, optimizing current-carrying capacity, and extending the lifespan of the transmission line. Incorrect sag can lead to dangerous situations and reduced efficiency. Tools like precision zoom sag scopes allow for accurate optical measurement from the ground, while tension meters and integrated control systems on pullers/OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioners ensure that the conductor is set to the specified tension, which directly correlates to sag.