Apparatus for measuring temperature at a hot point along an electrical energy transmission cable
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United States of America Patent
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Apr 4, 1989
Grant Date -
N/A
app pub date -
Oct 21, 1987
filing date -
Oct 24, 1986
priority date (Note) -
Expired
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Abstract
Apparatus for measuring temperature at a hot point along an energy transmission cable (1) when the temperature exceeds a fixed limit temperature, the apparatus comprising a tube (3) containing a liquid which is vaporizable in the vicinity of said limit temperature and which is disposed in the energy transmission cable or in contact with its periphery, together with means for detecting an increase in the vapor pressure of said liquid at least one point along said tube, the apparatus being characterized in that said tube is connected at one of its ends to means for detecting an increase in the pressure exerted by the liquid at said end.
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