Electric heating – Heating devices – With heating unit structure
Patent
1996-06-26
1998-09-29
Walberg, Teresa
Electric heating
Heating devices
With heating unit structure
219213, 338 61, 307 91, H05B 344, H05B 100, H01C 302, H04B 328
Patent
active
058147926
ABSTRACT:
An extra-low-voltage heating system that produces a reduced magnetic field and which uses three insulated copper wires, or equivalents, as heating elements. 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 single-phase feeder busbars are configured to reduce the magnetic field around the feeder. A monitoring network continually checks the integrity of the heating system.
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Documentaiton of the Threshold Limit Values, "For Physical Agents in the Work Environment", ACGIH, pp. PA-iii; PA-1 and PA-55 to PA-64.
Houle Guy J.
Paik Sam
Sperika Enterprises Ltd.
Walberg Teresa
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