The structure of the power cord is the outer sheath, the inner sheath and the conductor. The standard transmission conductor are copper wire and aluminum wire.
Outer sheath
Also known as the protective sheath, it is the outermost layer of the power cord. This outer jacket acts as a protective power cord. The outer sheath has the characteristics of high temperature resistance and low temperature resistance, natural light interference resistance, good winding performance, high service life, and environmental friendly materials, and other features.
Inner sheath
The inner sheath also known as the insulating sheath, which is an indispensable intermediate structural part of the power cord. The main purpose of the insulating sheath is to isolate the power cord to ensure safe power supply, so that no leakage of air will occur between the copper wire, and the material of the insulating sheath should be soft to ensure that it is embedded in the middle layer.
Copper wire
It is the core part of the power line. Copper wire is mainly a carrier of current and voltage. The density of copper wires directly affects the quality of power transmission lines. The material of the power cord is also an important factor in quality control. The number and flexibility of copper wires are also considerations.