High voltage cable shielding layer: a powerful tool for protecting power transmission

Introduction: In modern society, electricity has become an indispensable and important source in our lives. As the core carrier of power transmission, high-voltage cables play an important role. The shielding layer of high-voltage cables exists to protect the safety and stability of power transmission. This article will analyze advanced technology from the perspective of materialsHigh voltage cable shielding layerCharacteristics and functions.

1、 Conductive materials create stability in power transmission

1. Metal shielding layer: Basic guarantee for the safety of power transmission

Metal shielding layer is one of the common materials for high-voltage cable shielding layer. Due to its excellent conductivity and shielding ability, the metal shielding layer can effectively resist the interference of external electromagnetic radiation, ensuring the stability of power transmission. Common metal materials such as aluminum and copper are widely used in the production of high-voltage cable shielding layers.

2. Conductive polymers: expanding the breadth of material selection

In addition to metal materials, conductive polymers are also one of the commonly used materials for high-voltage cable shielding layers. Conductive polymer is a material that combines conductive properties with polymers, and has important application value in the field of power transmission. Conductive polymers have good flexibility and plasticity, and can be made into various shapes and sizes, making them convenient for use in the shielding layer of high-voltage cables.

2、 Insulation materials enhance the safety of power transmission

1. Insulation shielding layer: preparation work for isolating power transmission

In the structure of high-voltage cable shielding layer, the insulation shielding layer is located between the conductor and the shielding layer, and its function is to isolate the direct contact between power transmission and the shielding layer. The insulation shielding layer is usually made of insulation materials such as polyethylene, PVC, etc. These materials have good insulation properties and can prevent current from flowing directly to the shielding layer, thereby protecting the stability of power transmission.

2. Non conductive shielding materials: further reducing transmission losses

In addition to the insulation shielding layer, non-conductive shielding materials are also an important component of the shielding layer of high-voltage cables.Non-conductive shielding materialUsually refers to materials without conductivity, such as rubber, plastic, etc. They can effectively prevent losses and leaks in power transmission, improving the efficiency and safety of power transmission.

3、 Diversity in the selection of shielding layer materials

1. Composite materials: the perfect combination of material properties

In order to further improve the performance of the shielding layer of high-voltage cables, people have begun to use composite materials as the material for the shielding layer. Composite materials are new materials made by combining materials with different properties, characterized by diversity, high strength, and lightweight. In the shielding layer of high-voltage cables, the application of composite materials can not only reduce the weight burden of the shielding layer, but also improve the conductivity and high temperature resistance of the shielding layer.

2. Innovation in other materials: continuous development prospects

With the advancement of technology and the continuous improvement of people's requirements for the performance of high-voltage cable shielding layer materials, the emergence of new materials has also brought more choices for the production of high-voltage cable shielding layers. Graphene, nanomaterials, new plastics, and other materials have outstanding characteristics in terms of conductivity, mechanical properties, and insulation properties, and have broad development prospects.

Summary: As an important component of power transmission, the selection of materials for the shielding layer of high-voltage cables is crucial. The metal layer and conductive polymer ensure the stability of power transmission,Insulation shielding materialNon conductive shielding materials enhance the safety of power transmission, while composite materials and new materials bring more possibilities for the production of high-voltage cable shielding layers. Through continuous innovation and research, we believe that high-voltage cable shielding layer materials will demonstrate even better performance and application effects in the future.