Electricity: conductors and insulators – Earth grounds – Driving type
Reexamination Certificate
2006-10-18
2010-06-08
Zarroli, Michael C (Department: 2839)
Electricity: conductors and insulators
Earth grounds
Driving type
C174S006000, C439S100000
Reexamination Certificate
active
07732707
ABSTRACT:
An installation structure of a ground rod for driving the rod deep into the ground comprising an overhead earth wire installed to protect transformers, power-transmission lines, etc. from lightning; a ground wire that is extended from a lightning arrester to a ground; a multi-stage ground rod elongated by a thread type connection and connected with the end of the ground wire that it is buried into the ground; and a connecting sleeve for connecting the ground rod to the ground wire, the electric conductive compound preventing corrosion in the thread connection including a lead terminal side junction of the and a ground wire side junction of the connecting sleeve. Corrosion of the gap between junctions is inhibited by inserting electric conductive compound into the junctions of the lead terminal side and of the ground wire side of the ground wire connecting sleeve, increasing ground rod lifetimes and decreasing maintenance costs.
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IpHorgan Ltd.
Korea Electric Power Corporation
Zarroli Michael C
LandOfFree
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