FIELD: physics.
SUBSTANCE: invention is related to electric power industry, namely to linear rod insulators for overhead transmission lines, electric substations, contact network of railways. Proposed insulator consists of insulating rod (1), terminators (2) fixed on insulating rod (1), and protective silicone cover. Between terminal (2) and insulating rod (1) there is insert (3), which is attached to insulating rod by means of pressure testing through metal bushing (4). Insert (4) has rigidity different from insulating rod (1). Above inserts are made in the form of metal rope or fiberglass rod of smaller or larger diameter than insulating rod (1). Separate sections of insulating rod (1) can have different rigidity.
EFFECT: disclosed linear rod insulator is a multi-link rod structure, rod elements of which have different rigidity, which enables to change amplitude-frequency characteristics of the insulator, region of resonance frequencies of the wire and insulator cease to coincide and amplitude of insulator oscillations are reduced, providing significant increase in service life and operational reliability of insulators, as well as overhead transmission lines in general.
12 cl, 3 dwg
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