What is the main purpose of using soft drawn tie wire?

The main purpose of using soft drawn tie wire is to secure conductors. This type of wire is specifically designed to hold electrical conductors together and keep them in their intended positions, ensuring proper functionality and safety in electrical installations. By tightly securing the conductors, it helps to prevent them from loosening or moving, which could lead to faults or disruptions in the electrical system.

In the context of electrical work, secure conductors are critical for maintaining continuity and performance. The tie wire provides mechanical support, and its soft, malleable nature allows for easy handling and installation.

The other options do not pertain to the primary function of tie wire. For instance, increasing voltage capacity and improving insulation are not relevant since tie wire does not serve to enhance the electrical characteristics of the conductors themselves. Similarly, enhancing signal transmission is not applicable because the primary role of the tie wire is structural support rather than improving the electrical performance of the conductors.