There are two main types of technical losses in power transmission:

• Resistive Losses (or Joule Losses): This is the most significant type of loss. As electricity flows through a conductor, its inherent resistance causes the conductor to heat up. This heat is a form of lost energy and is proportional to the square of the current and the resistance of the conductor (Ploss=I2R). Our overhead transmission line equipment is designed to use high-quality, low-resistance materials to help mitigate this effect.

• Corona Losses: This occurs on high-voltage lines, where the strong electric field ionizes the air around the conductor. This ionization produces a faint glow, hissing sound, and ozone gas, all of which consume electrical energy. Corona losses are more pronounced in wet or humid conditions and can be minimized by using specialized conductors and accessories, which are part of our product offerings at Ningbo Changshi.