Nowstationary Skin-Effect in the Wires of high Voltage Aerial Line and Damping of Nanosecond Current Pulse

The technique of analytical calculation of wave processes in suspended above the ground nonmagnetic solid and tubular cylindric wires of two-wire homogeneous aerial line influenced by the nanosecond current pulse has been developed. It allows to determine the influence of nonstationary skin-effect and caused by it heat generation in circular wires of arbitrary thickness as well as geometrical and electrophysical parameters of aerial line for distortion and damping of the current running wave in nanosecond range. It is shown, that for current wave τ_f/τ_p=5/200 nanosec inducted in line by high altitude electromagnetic pulse (EMP) of nuclear explosion the pulse heat losses of energy in massive wires cause the considerable smoothing of wave front and damping of current wave amplitude. In case of nonmassive wires there is no deformation of pulse wave front due to joule losses of energy in wires metal, one can observe only its damping. It is established, that in nanosecond region intensity of wave processes damping in an aerial line increases with decrease in values of wires suspension above the ground, outer radius, wall thickness and conductivity of wires material. The obtained results can be used in both physics and technics of pulse processes in electromagnetic compatibility region and nanosecond pulse technics of modem physics experiment with energy high density which carry out at the electrophysical plants.

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