Take you to understand the structure of power cord

A power line is a wire that carries current. Generally, the mode of current transmission is point-to-point transmission. Power lines can be divided into AC AC power lines and DC DC power lines according to their purposes. Generally, AC power lines are wires with high voltage of AC power. Such wires can be formally produced only after they have obtained safety certification according to unified standards due to high voltage.

The structure of the power cord is not very complex, but it should not be seen from the surface. If you study the power cord carefully, you need to understand the structure of the power cord professionally. The structure of power line mainly includes outer sheath, inner sheath, copper wire, etc

Copper wire
The copper wire is the core part of the power line. The copper wire is mainly the carrier of current and voltage. The density of the copper wire directly affects the quality of the power line. The material of power cord is also an important factor for quality control, and the quantity and flexibility of copper wire are also considered.

Outer sheath
The outer sheath, also known as the protective sheath, is a layer of sheath outside the power line Z. This layer of outer sheath plays the role of protecting the power line. The outer sheath has strong characteristics, such as high temperature resistance, low temperature resistance, natural light interference resistance, good winding performance, long service life, and environmental protection of materials.

Inner sheath: the inner sheath, also known as the insulating sheath, is an indispensable intermediate structure part of the power line. The main use of the insulating sheath is insulation, as the name implies, to ensure the safety of the power line, so that there will be no leakage between the copper wire and the air, and the material of the insulating sheath should be soft to ensure that it can be well embedded in the middle layer.