Calculation of life characteristics of insulation

Based on chemical reaction rate theory and an extension of the application of the Arrhenius equation, a method is presented for calculating insulation degradation curves. Using the initial dielectric strength (DS) and time-temperature insulation characteristic to deteriorate to some given percentage level, curves showing the relationship between DS and insulation aging at a constant temperature may be computed. Also degradation curves to other given percentage levels of initial DS may be derived. Thus data may be converted into forms more valuable to the design engineer.