| 摘要 |
An overload-release-type line post insulator comprises an insulating body, a metallic cap secured to the insulating body and having a clamp for holding a line conductor, a metallic base secured to the insulating body, a hinge bolt for swingably connecting said metallic base to a mounting base fixed to an insulator-holding structure either directly or indirectly through a support insulator, which bolt allows the insulating body to swing along the longitudinal direction of the line conductor, and at least one locking pin disposed in the proximity of the hinge bolt for normally preventing the insulating body from swinging, whereby an overload from the line conductor to the insulating body is absorbed by the breakage of the locking pin and the swinging of the insulating body about the hinge bolt.
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