The fundamental difference lies in their ability to conduct electrical current.

• A conductor is a material that allows electric current to flow easily and freely. This is because conductors have a large number of free electrons that are not tightly bound to their atoms and can move easily when an electrical field is applied. Metals like aluminum and copper are excellent conductors, which is why they are used for the main cables in overhead transmission lines and underground cables.

• An insulator is a material that resists the flow of electric current. In insulators, electrons are tightly bound to their atoms and are not free to move. Materials such as porcelain, glass, rubber, and plastic are common insulators, which are used to shield and protect people and equipment from electrical currents. For example, insulators on transmission towers prevent current from traveling down the tower to the ground, ensuring safety and efficiency.

At Ningbo Changshi, we specialize in providing a comprehensive range of equipment and tools for both conductors and insulators, including our high-quality tension stringing equipment and various overhead tools and accessories essential for secure and reliable power line construction.