The geometric model should be employed to estimate the shielding angle based on a nonzero value of SFFOR. In general, a SFFOR of 0.05 flashovers/ 100 km-years is recommended
The geometric model should be employed to estimate the shielding anglebased on a nonzero value of SFFOR. In general, a SFFOR of 0.05 flashovers/100 km-years is recommended