What mechanism is designed to place tension on the conductor during stringing?

The bull-wheel is specifically designed to provide tension on the conductor during the stringing process. This mechanism works by allowing the conductor to wind around it, which helps maintain the necessary tension as the conductor is being pulled into place. The configuration and operation of the bull-wheel enable it to effectively manage the conductor's weight and tension, ensuring that it is properly aligned and installed according to engineering specifications.

In various applications, stringing conductors with the appropriate tension is critical in preventing damage to the conductor and ensuring long-term reliability of the electrical system. The bull-wheel's design is geared towards accommodating these needs, making it an essential part of the process.

Other options, while relevant in the context of working with conductors, do not serve the same specific function. A winch is more commonly associated with pulling or lifting loads rather than maintaining tension in the same manner. A sheave is a pulley system that aids in guiding cables but does not inherently provide tension. An anchor is used to secure lines or structures, not to add tension during the stringing process. Thus, the bull-wheel stands out as the correct mechanism for placing tension on the conductor.