The relationship between insulation board performance and temperature

Because of its strong adhesion, strong shrinkage, and good heat resistance and moisture resistance, insulating plates are loved by people in the industry and are widely used in machinery and electronics industries.

Insulation board is also called epoxy resin board, epoxy board, 3240 epoxy board, which is characterized by strong adhesion and strong shrinkage. It is suitable for mechanical, electrical and electronic components with high insulation, with high mechanical and dielectric properties, as well as good heat resistance and moisture resistance.

Insulation board is an insulating material, and its insulation performance is very closely related to temperature: the higher the temperature, the worse the insulation performance.

In order to ensure the insulation strength, each insulation material has an appropriate allowable operating temperature. This requires us to control a suitable temperature when using insulating rubber sheets, which is also a good way to maintain rubber sheets. Because under high temperature, not only the insulation performance of the rubber sheet is not good, but also the rubber sheet will rapidly age.

The relationship between the temperature of the epoxy insulation board and the insulation temperature grade: According to the degree of heat resistance, the insulation materials are divided into Y, A, E, B, F, H, C and other levels.

For example, the allowable working temperature of Class A insulating materials is 105°C, and most of the insulating materials used in distribution transformers and motors generally belong to Class A; such as epoxy resin insulation boards and so on. Insulation temperature class: Class A, Class E, Class B, Class F, Class H. Allowable temperature (℃): 105, 120, 130, 155, 180. Winding temperature rise limit (K): 60, 75, 80, 100, 125. Performance reference temperature (℃): 80, 95, 100, 120, 145.