Function representation of lightning impulse wave

The paper presents mathematical descriptions which fit the front, the tail and the chopping of lightning impulses which correspond with real circuits. Values of the equation coefficients are calculated which depend on the wave shapes. The wavefront and the wave chopping are analysed, assuming an infinitely long tail and treating the tested device as a capacitance. The wavetail is analysed assuming the infinitely steep front. The tested device is then replaced by an inductance