In the engine room equipment, changes in the environment will also have influence on the performance of the insulation material, when the temperature becomes higher, the performance of the insulation material change, when the temperature is too low, is likely to affect the normal operation of the society, lower resistance strength, therefore, improve the heat performance of insulation film can prolong the service life. Studies show that the thermal stability of different materials is different also, in general so material heat-resisting temperature, minimum can be 90 degrees, up to more than 180 degrees.130 ℃, 155 ℃, 180 ℃, 180 ℃ and above.

Electronic devices at work will produce a lot of heat, if not timely give away the heat effectively, will directly affect the performance of the machine. So under the condition of the relative humidity in the air is constant, the higher the temperature, due to the vapor pressure increases with the increase of temperature and the principle of easier to enter into the interior of the material of water molecules, so has a great impact on equipment.