Perfection of communication lines' Protection from influence of high-voltage network currents

Electromagnetic compatibility questions of communication lines with a high-voltage network have been examined. Necessity of distribution account of short circuit current on the ground for allocation current component in an influencing line and change of grounding contours potentials on the ends of the communication line has been shown. Distribution of a cable isolation voltage on a line for cases of operation accident protection devices and breakages of veins has been calculated. The variant of cable communication lines' protection perfection with inclusion of current-limiting resistors has been developed.