Three wire, three-phase heating cable and system
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United States of America Patent
Stats
-
Sep 22, 1998
Grant Date -
N/A
app pub date -
Dec 16, 1996
filing date -
Dec 13, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrical three-phase heating cable and system that produces a reduced magnetic field and which uses a cable containing three insulated copper wires, or equivalents, as heating elements. The wires are equidistantly spaced from each other, in triangular configuration, the geometric center of the triangle coinciding with the longitudinal axis of the cable. The wires are twisted in a uniform fashion along the longitudinal axis of the cable. Its low operating temperature, robustness and safety enable the system to be installed, for example, in floors and walls for the general heating of buildings, and in outdoor pavements, for snow-melting purposes, etc. The feeder conductors are also twisted to reduce the magnetic field around the feeder.
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Family
International Classification(s)
Cited Art Landscape
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