Professional Answer: Tension stringing is the modern, professional method for installing overhead conductors. It is essential for protecting the conductor's surface from damage by keeping it elevated above the ground and obstacles throughout the entire installation process. This is particularly crucial for conductors with sensitive coatings or optical ground wire (OPGW). The method also ensures greater safety by maintaining precise control over conductor sag and tension, minimizing the risk of contact with live circuits and other hazards. For ultra-high voltage projects, tension stringing is a standard requirement, ensuring the long-term integrity and reliability of the power line.