On the Expediency of Laying Cable Power Lines with a Voltage of 6–35 kV Outside Settlements Instead of Overhead Power Lines

. It is noted that at present, 10 and 35 kV overhead power transmission lines are being laid outside the settlements of Republic Belarus on reinforced concrete vibrated (10 kV) centrifuged (35 poles characterized by low reliability damaging environment (on account alienation land for poles, need to make a wide clearing laying in forest, obstructions wires operation agricultural machinery, danger electric shock personnel public). possible avoid these disadvantages if, instead lines, cables with insulated cross-linked polyethylene used which very failure flow parameter. Contrary prevailing opinion about higher cost cable compared ones same rated voltage, it turned out that, taking into reliability, electricity lost year, damage system caused perform more expensive emergency repairs (as planned one), three-core single-core voltage populated area fairly justified. In this connection, preferable. should be also borne mind an increase length capacitive earth fault current increases, compensate additional devices needed installed centers, viz. arc-extinguishing reactors or resistors, accounting (up 22 % one kilometer line) does not significantly affect conclusions we have drawn regarding effectiveness using 6–35 unpopulated ones, however.