FIELD: electric engineering.
SUBSTANCE: composite core is arranged in the form of one or multiple-strand structure, which represents a lengthy rod or twisted lengthy rods of high-strength hear resistant of continuously reinforced composite material. Composite material consists of high-strength reinforcing fiber of one composition with filling extent of 30-85 wt % and thermosetting heat resistant polymer binder with content of 15-70 wt %. Core for protection against damages at the stage of winding of current-conducting layer and under conditions of operation against effect of active factors of environment comprises external metal or heat resistant varnish-cloth shell. In process of core manufacturing, shaping of core profile is carried out by means of cord pulling through heated draw plate or by means of core profile shaping directly in protective external metal shell.
EFFECT: core makes it possible to improve throughput capacity, to provide for minimum sagging of overhead wire of power transmission line and to reduce loads at power transmission line supports.
18 cl, 5 dwg, 2 ex
