| 摘要 |
electrical engineering. SUBSTANCE: distributor of average voltage includes at least two shells made of electric insulation material. Each shell is provided with one hole as minimum intended for leak-tight lead-in of three-phase set of buses. Each shell houses three-phase three- position switch that ensures connection of mentioned buses to first electric sealed leads-in and connection of mentioned-above first leak-tight leads-in to second leak- tight leads-in connected to ground. Each of first sealed leads-in of at least one shell is electrically linked to single-phase electric cable and first sealed leads-in of one shell are connected either to safety cutout or to pole of automatic switch placed in electric insulation compartment. Technical objective of invention is provision for replacement of energized apparatuses and equipment, for uninterrupted operation of equipment, for exclusion of any manipulations with gas. EFFECT: distributor comes up to ecological requirements. 9 cl, 4 dwg
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