What are the common insulation materials at home?
Insulation material, also known as dielectric. Insulating materials are non-conductive materials that can prevent the passage of current through them. Common insulation materials include: 1. Gas: such as air, sulfur hexafluoride, etc. 2. Liquids: such as transformer oil, cable oil, capacitor oil, etc. 3. Solid materials: including two types, one is inorganic insulation materials, such as polyimide film, mica, mica board asbestos, electric porcelain, glass, etc. 4. Organic substances such as paper, cotton yarn, wood, plastic, etc.
According to the degree of heat resistance, insulation materials are divided into 7 levels: Y, A, E, B, F, H, C, etc.: Y level insulation with temperature resistance of 90 ℃ 1, A level insulation with temperature resistance of 105 ℃ 2, E level insulation with temperature resistance of 120 ℃ 3, B level insulation with temperature resistance of 130 ℃ 4, F level insulation with temperature resistance of 155 ℃ 5, H level insulation with temperature resistance of 180 ℃ 6, C level insulation with temperature resistance of 200 ℃ or above.
The insulation level and insulation temperature resistance are closely related, as the higher the temperature, the poorer the insulation performance of the material. So, different levels of insulation materials have a maximum allowable working temperature, within which they can be safely used. It should be noted that if the working temperature of the insulation material exceeds its own insulation heat resistance temperature, the insulation material will quickly age and become unusable, which may also cause safety hazards. So, consumers must pay more attention when using it.
What should be noted when selecting insulation materials?
1. Compression coefficient. Due to the fact that many materials increase in thickness after moisture absorption, and the thickness decreases when dried again, this puts higher requirements on the compression coefficient of thermal insulation materials, such as being able to withstand various deformation and shrinkage situations.
2. Heat resistance performance. Some thermal insulation materials used in specific occasions have certain requirements for their heat resistance level.
3. Insulation performance. There are many types of thermal insulation materials, and the insulation strength of different materials varies. In use, we need to have a basic parameter guidance for insulation, and then select the corresponding thermal insulation material based on these parameters.
4. Mechanical performance. In the field of mechanical equipment, vibration, pulling, or movement are inevitable during use, which increases the difficulty of applying thermal insulation materials to small components.
According to the degree of heat resistance, insulation materials are divided into 7 levels: Y, A, E, B, F, H, C, etc.: Y level insulation with temperature resistance of 90 ℃ 1, A level insulation with temperature resistance of 105 ℃ 2, E level insulation with temperature resistance of 120 ℃ 3, B level insulation with temperature resistance of 130 ℃ 4, F level insulation with temperature resistance of 155 ℃ 5, H level insulation with temperature resistance of 180 ℃ 6, C level insulation with temperature resistance of 200 ℃ or above.
The insulation level and insulation temperature resistance are closely related, as the higher the temperature, the poorer the insulation performance of the material. So, different levels of insulation materials have a maximum allowable working temperature, within which they can be safely used. It should be noted that if the working temperature of the insulation material exceeds its own insulation heat resistance temperature, the insulation material will quickly age and become unusable, which may also cause safety hazards. So, consumers must pay more attention when using it.
What should be noted when selecting insulation materials?
1. Compression coefficient. Due to the fact that many materials increase in thickness after moisture absorption, and the thickness decreases when dried again, this puts higher requirements on the compression coefficient of thermal insulation materials, such as being able to withstand various deformation and shrinkage situations.
2. Heat resistance performance. Some thermal insulation materials used in specific occasions have certain requirements for their heat resistance level.
3. Insulation performance. There are many types of thermal insulation materials, and the insulation strength of different materials varies. In use, we need to have a basic parameter guidance for insulation, and then select the corresponding thermal insulation material based on these parameters.
4. Mechanical performance. In the field of mechanical equipment, vibration, pulling, or movement are inevitable during use, which increases the difficulty of applying thermal insulation materials to small components.
