SUPPORT COMPOSITE INSULATOR Russian patent published in 2009 - IPC H01B17/14 

FIELD: power engineering.

SUBSTANCE: insulator consists of hollow insulating body (1) arranged in the form of cone, cylinder, with central rod (5), having threaded hole (6) for fastening bolt (7). Thread is made only on upper part of rod (5) at the height of at least 0.5 of insulator construction height. Along full height of insulator body (1) internal cavity from lower part (2) to upper part (3), stiffening ribs (8) are arranged. Projecting beads may be made on stiffening ribs (8) for additional fixation of insulator to bearing structures. Internal cavity of body (1) may be filled with foaming material of low density, protective ribbed shell (11) is molded from organosilicic composition on external side surface of body, and at the bottom insulator is closed with cover in cases when insulator operates under extremely contaminated and moisturised conditions.

EFFECT: low material intensity, good strength characteristics, simple technological manufacturing process.

10 cl, 3 dwg