What are the unique features of home appliance shell accessories in terms of electrical insulation performance?
Publish Time: 2025-01-20
In modern home appliance manufacturing, plastic accessories are widely used in the production of home appliance shells due to their many advantages. Among them, electrical insulation performance is an important characteristic of plastic accessories in home appliance shells. It is not only related to the safe use of home appliances, but also directly affects the overall performance and life of home appliance products.
As a non-metallic material, plastic has good electrical insulation performance due to its molecular structure. Compared with metals, plastics have extremely poor conductivity. Therefore, under the action of electric fields, plastics are not easy to form current channels and can effectively prevent the passage of current. This characteristic makes plastics an ideal material for the production of home appliance shells, especially in areas that require electrical insulation protection, such as power sockets, wire connectors, etc.
The electrical insulation performance of home appliance shell accessories is mainly reflected in the following aspects:
First, the high resistivity of plastics is the basis of its electrical insulation performance. Resistivity is a physical quantity that measures the conductive properties of materials. The larger the resistivity, the worse the conductive properties of the material and the better the electrical insulation performance. The resistivity of plastic is extremely high, generally between 1020 ohm cm, which means that under the action of electric field, it is not easy to form a current channel inside the plastic, which can effectively prevent the passage of current and protect the circuit inside the home appliance from external electric field interference.
Secondly, the breakdown strength of plastic is also an important indicator of its electrical insulation performance. The breakdown strength refers to the maximum electric field strength that the material can withstand under the action of the electric field. When the electric field strength exceeds this value, the material will break down and lose its electrical insulation performance. The breakdown strength of plastic is relatively high, generally between 10 and 100 kV/mm, which enables the plastic to maintain stable electrical insulation performance when subjected to high electric field strength.
In addition, plastic also has good arc resistance. In electrical equipment, arc discharge is a common phenomenon, which will generate high temperature and strong electromagnetic radiation, causing damage to electrical equipment. Plastic has good arc resistance and can maintain stable electrical insulation performance under the action of arc discharge, protecting electrical equipment from damage.
In addition to the above-mentioned electrical insulation performance, home appliance shell accessories also have other advantages. For example, the lightness of plastic makes the housing of home appliances easier to carry and install; the corrosion resistance of plastic allows the housing of home appliances to be used for a long time in harsh environments; the easy processing of plastic allows the housing of home appliances to be made into various shapes and colors to meet different aesthetic and functional requirements.
Home appliance shell accessories are unique in electrical insulation performance. Their high resistivity, high breakdown strength and good arc resistance make plastic an ideal material for the production of home appliance shells. At the same time, other advantages of plastics have also improved the performance, aesthetics and durability of home appliance shells.
