What are the outstanding electrical conductivity characteristics of copper plates in power transmission and transformers?

The outstanding electrical conductivity characteristics of copper plates in power transmission and transformers
1. Extremely high electrical conductivity

Oxygen-free copper plates (such as TU1 and TU0) have an electrical conductivity close to 100% IACS (International Copper Conductivity Standard), enabling them to minimize current losses in high-voltage power systems.
2. Low resistance leads to low energy consumption

Due to their extremely low resistivity, copper plates generate minimal Joule heating in transmission lines and transformer windings, significantly reducing operating costs and improving overall system efficiency.
3. Excellent thermal conductivity

Copper has a thermal conductivity of approximately 400 W·m⁻¹·K⁻¹, enabling rapid dissipation of locally generated heat, preventing damage to insulation materials from local overheating and improving transformer reliability.
4. Mechanical and chemical stability in high-voltage environments

High-strength copper alloy plates maintain shape and dimensional stability under high voltage and strong electric fields. They also offer excellent corrosion resistance, making them suitable for harsh operating conditions such as marine and mining environments.