Period of use of insulating materials and the operating temperature limit

For any type of electrical products, in fact, have to have a certain period of use, the insulating material is no exception. Lifetime of insulating material may according to the environment, the work cycle, the product type or the like change, in addition, also with respect to the product size, reliability, also closely related.

For some special electrical products, because of its specific purpose, it requires the use of the insulation of lower or higher than normal. Or, because of the special operating conditions, the provisions of its temperature is higher or lower than normal, but it insulated high temperature at or below normal. The use of insulating materials depends largely on the degree of isolation which oxygen, humidity, dust and chemical substances. Usage period at a given temperature, by appropriate protection of the insulating material will be freely exposed to the atmosphere than the use of a long insulated, therefore, with a chemically inert gas or a liquid for cooling or price protection substance, using an insulating material to extend period.

In addition to the aging of the insulating material to withstand the outside, some material is heated above a certain temperature will soften, or other deterioration, but after cooling to restore its original performance. Note the use of such material, be sure to make them work within the proper temperature range