POLYMER INSULATOR Russian patent published in 1997 - IPC

FIELD: electric engineering. SUBSTANCE: device has rod which is made from insulation material, tracking- proof envelope, metal terminator pieces and screen which is designed as semiconductor layer which covers side surface of additional member which is made from fiber material impregnated with compound, and is located between rod and terminal piece. Height of screen is in range of 1.2-4.0 of height of terminator piece. Screen may be designed as glass strap coils which are impregnated with temperature-sensitive compound. EFFECT: increased functional capabilities. 3 cl, 1 dwg