An overhead transmission line is a complex system designed for the safe and efficient transfer of electricity. Its primary components include:

• Conductors: These are the bare wires that carry the electrical current. Modern overhead lines use a variety of conductors, such as ACSR (Aluminum Conductor Steel Reinforced), which combines the light weight of aluminum with the strength of steel.

• Supports: This refers to the towers and poles that physically hold the conductors above the ground at a safe height. They can be made of steel, concrete, or wood, depending on the voltage and span.

• Insulators: Insulators are crucial for preventing the flow of electricity from the conductors to the support structures. They are typically made of glass, porcelain, or polymers and are designed to withstand high voltages and environmental stress.

• Cross-Arms: These are structural members mounted on the support towers or poles to provide a horizontal platform for the insulators and conductors.

• Ground Wires / Earth Wires: These are bare conductors installed at the very top of a transmission tower to protect the main conductors from direct lightning strikes by intercepting the lightning and safely directing it to the ground.

• Vibration Dampers: Devices attached to the conductors to absorb and dissipate vibrations caused by wind, preventing fatigue and damage to the conductors and other hardware.

At Ningbo Changshi, we provide all the essential overhead tools and accessories needed to work with these components, from installing insulators and conductors to maintaining supports.