THUNDEBOLT PROOF SYSTEM OF AERIAL INSULATED DISTRIBUTION LINE

Title:

THUNDEBOLT PROOF SYSTEM OF AERIAL INSULATED DISTRIBUTION LINE

Document Type and Number:

Japanese Patent JPS54113890

Kind Code:

A

Abstract:

PURPOSE: To intend to improve the withstand voltage properties of electric wire and prevent fusing and drop of the wire at thunderbolt time, by winding semi-conductive reinforcing string material on the electric wire for a constant length of both sides from fixed point of insulator in spiral state.

CONSTITUTION: Aerial insulated distribution line 4 is mounted on an insulator 3 at a transverse fixture 2 which is fixed on an electric pole 1, and semi-conductive reinforcing string material 5 is wound on the wire for a constant length of both sides from the fixed point of insulator 3 of insulated distribution line 4 in sprial state. As this semi-conductive reinforcing string material 5, the material in which resin for reinforcement is impregnated in a core material in which organic fibers such as glass fiber and the like for improvement of arc proof properties are twisted together, semi-conductive enamel resin and etc. are coated on this and is formed in spiral state is used.

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Inventors:

YAMAGUCHI MASAYUKI
MATSUYAMA SHIGEKI
SEKII YASUO
SHIMAZAKI YUKIO
NAGANO HIROO
TAKATSUKI HIDEO

Application Number:

JP2134478A

Publication Date:

September 05, 1979

Filing Date:

February 24, 1978

Export Citation:

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Assignee:

HITACHI CABLE

International Classes:

H02G7/00; H01B17/22; H02G7/18; (IPC1-7): H01B17/22; H02G7/00; H02G7/18

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