SUPPORT OF ELECTRIC POWER LINE Russian patent published in 2001 - IPC

FIELD: construction industry, electrical engineering. SUBSTANCE: invention deals with erection of 0.4 to 35.0 kV power lines. Technical result-increased operational reliability of power line is achieved thanks to prevention of deformation and break of insulators under action of single-phase electric arc, thanks to improvement of strength characteristics of material and structural implementation by way of horizontal arrangement of insulated elements and lengthened path of leakage current, thanks to simplified design, process of manufacture and erection of support, reduced usage of materials, thanks to prevention of cut-off of line with fall of trees on wires. Support of electric power line with insulated wires includes post and head piece of electric insulation concrete composed of radial profiles for attachment of wires attached to post by means of fastening members. Head piece is produced from fibrous polymer concrete with compression strength 40-150 MPa, electric strength 40-50 kV/cm and volumetric resistance 10¹²-10¹⁴ Ohm cm on basis of mineral and/or chemical fibers. It has grooves in radial profiles for anchoring wires which are fitted with polymer spacers. Radial profiles can be fabricated in the form of cross-pieces or protrusions. EFFECT: increased operational reliability of electric power line. 6 cl, 10 dwg, 1 tbl