DEVICE FOR PROTECTION OF METALLIC SHELLS AND JUNCTION BOXES FOR POWER CABLES FROM CORROSION

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 for protection against corrosion, in particular to the electrochemical protection of metal of power cables and connectors. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - speed reduction corrosion through the installation and u043fu043eu0434u0434u0435u0440u0436u0430u043du0438u00a0 best defensive capabilities. the device includes transistors 5, 6, resistors 7 to 9, a diode 10, an electrode 11 u0441u0440u0430u0432u043du0435u043du0438u00a0, voltmeter 12. the device works as follows.current, on the shell 1 and trickling down through a resistor 7, a diode 10, and a casing 3 armour 13 connectors 4 in the ground, u0432u044bu043fu0440u00a0u043cu043bu00a0u0435u0442u0441u00a0 and shell 1 and a socket 4 u043du0430u043au0430u043fu043bu0438u0432u0430u0435u0442u0441u00a0 denier its u0437u0430u0440u00a0u0434.the variable resistor 9 u0443u0441u0442u0430u043du0430u0432u043bu0438u0432u0430u0435u0442u0441u00a0 potential difference between the shell 1 and a casing 3 u0437u0430u0437u0435u043cu043bu0435u043du043du044bu043c connectors 4, u0441u043eu043eu0442u0432u0435u0442u0441u0442u0432u0443u044eu0449u0430u00a0 assigned to u044du043bu0435u043au0442u0440u043eu0434u0443 11 rs u0430u0432u043du0435u043du0438u00a0 and u0432u043eu043bu044cu0442u043cu0435u0442u0440u0443 12 u0438u043du0442u0435u0440u0432u0430u043bu0443 protective capacities u0434u043bu00a0 metal membranes and terminations.after reaching the maximum capacity, the protective capacity of the shell and the coupling u043eu0442u043au0440u044bu0432u0430u044eu0442u0441u00a0 transistors 5 and 6, and the capacity of u0437u0430u0449 you u0441u043du0438u0436u0430u0435u0442u0441u00a0 to minimum values. when reaching the minimum protective capacities of transistors 5 and 6 u0437u0430u043au0440u044bu0432u0430u044eu0442u0441u00a0 and process u043fu043eu0432u0442u043eu0440u00a0u0435u0442u0441u00a0, 1). sl with