The structure of the power cord is not very complex, but it should not be easily visible from the surface. If you study the power cord well, there are still some areas that require professional understanding of the power cord structure.
The structure of the power cord mainly consists of an outer sheath, an inner sheath, and a conductor. Common transmission conductors include copper, aluminum, and other metal wires.
Outer sheath
The outer sheath, also known as the protective sheath, is the outermost layer of sheath on the power cord. This layer of outer sheath plays a role in protecting the power cord. The outer sheath has powerful characteristics such as high temperature resistance, low temperature resistance, resistance to natural light interference, good winding performance, long service life, and environmentally friendly materials.
Inner sheath
The inner sheath, also known as the insulation sheath, is an indispensable intermediate structural part of the power cord. The main use of the insulation sheath, as the name suggests, is insulation, ensuring the safety of the power cord's power supply and preventing any leakage between the copper wire and air. The material of the insulation sheath should be soft to ensure that it can be well embedded in the middle layer.
Copper wire
Copper wire is the core part of the power cord, which is mainly the carrier of current and voltage. The density of copper wire directly affects the quality of the power cord. The material of the power cord is also an important factor in quality control, and the quantity and flexibility of the copper wire are also considered.
Inner sheath
Inner sheath is a layer of material that wraps a cable between the shielding layer and the wire core, usually polyvinyl chloride plastic or polyethylene plastic. There are also low smoke and halogen-free materials available. Use according to process regulations to prevent the insulation layer from coming into contact with water, air, or other objects, to avoid moisture and mechanical damage to the insulation layer