Method of manufacturing mineral insulated electric cable and like elements
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United States of America Patent
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Apr 23, 1985
Grant Date -
N/A
app pub date -
Aug 20, 1982
filing date -
Sep 21, 1981
priority date (Note) -
Expired
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Abstract
In a mineral insulated electric cable the powdered insulating material is impregnated with a quantity of a hydrophobic material, for example a silicone, which has been introduced into the powder in liquid form. The added hydrophobic material serves as a barrier against the ingress of moisture, and liquid dimethylpolysiloxane has been found particularly effective, the pressure of even a small quantity of this preventing any significant degree of moisture penetration into the cable.
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