Lightning arrestor insulator and method of producing the same

Details Lightning arrestor insulator and method of producing the same Lightning arrestor insulator and method of producing the same

1990-07-27

1991-04-30

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361127, 337 28, 313325, H02H 906

Patent

active

050123831

ABSTRACT:
An excellent lightning arrestor insulator is provided having a discharge gap portion and an arrestor ZnO element device both built in a body of the insulator, comprising projected discharge electrodes arranged in the inside of the insulator body, the discharge gap portion being formed of a heat resistant protrusion arranged in the inside of the insulator body and surrounding the discharge electrodes, and a pair of metal plates and/or electrically conductive ceramic plates sandwiching the protrusion from both sides thereof and electrically connected to the discharge electrodes, the pair of plates being joined and airtightly sealed to the protrusion via an inorganic glass. The arrestor ZnO element device has a highly reliable airtight fixing and sealing structure so that accidents in a power supply or distribution line at a normal working voltage can be substantially eliminated, and damages caused by hygromeration and lightnings can be noticeably decreased.

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