The components of the DC power cord mainly include an outer sheath, an inner sheath, and a conductor. Common transmission conductors include copper and aluminum wires.
1, outer sheath
The outer sheath is also called the protective sheath. It is the outermost layer of the DC power cable. This outer sheath serves to protect the DC power cable. The outer sheath has strong characteristics, such as high temperature resistance and resistance. Low temperature, resistance to natural light interference, good winding performance, high service life and environmentally friendly materials.
Inner sheath: The inner sheath is also called the insulating sheath. It is an indispensable intermediate structure part of the DC power cord. The main purpose of the insulating sheath is insulation, ensuring the power supply of the DC power cord and allowing the copper wire and air to be directly No leakage will occur, and the material of the insulating sheath should be soft to ensure that it is well embedded in the middle layer.
2, inner sheath
The inner sheath is a layer of material that wraps the cable between the shield and the core, typically polyvinyl chloride plastic or polyethylene plastic. There are also low-smoke halogen-free materials. Use according to the process regulations, so that the insulation layer will not come into contact with water, air or other objects, and the insulation will be protected from moisture and the insulation layer will be protected from mechanical damage.
3, copper wire
The copper wire is the core part of the DC power wire. The copper wire is mainly the carrier of current and voltage. The density of the copper wire directly affects the quality of the DC power line. The material of the DC power cord is also an important factor in the quality control. The number and flexibility of the copper wire are also considered factors.
