STRUCTURE OF CABLE CONNECTION HEAD

PROBLEM TO BE SOLVED: To secure long-term insulating properties in the cable connection head, and to enable the long-term continuous use of a measuring device, by filling an insulation oil in a cable connection head and movably providing a lid member of the oil. SOLUTION: The cable connection head 1...

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Bibliographic Details
Main Authors TEZUKA KAZUHIKO, OSAKI YUTAKA
Format Patent
LanguageEnglish
Published 22.12.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CURRENT COLLECTORS
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
ELECTRICITY
FIXED CONSTRUCTIONS
GENERATION
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES
LINE CONNECTORS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:PROBLEM TO BE SOLVED: To secure long-term insulating properties in the cable connection head, and to enable the long-term continuous use of a measuring device, by filling an insulation oil in a cable connection head and movably providing a lid member of the oil. SOLUTION: The cable connection head 18 is constituted of a lower head body 19 connecting a head body 21 to a measuring instrument body 6 and of an upper head body 20. A detection layer cable 1 is inserted into the upper head body 30, and the core wire conductor of a covering cable 2 is connected to a connector 11 fitted and fixed to the lower head body 19. The lower head body 19 is filled with a low viscosity insulation oil 29 heavier in specific gravity than the fluid in a pit, and a movable sealing member 30 which prevents the flowing out of the lower viscosity insulation oil 29 and prevents intrusion of the fluid in a pit is movably provided in the lower head body 19. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20040172200