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Tracer
STS
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The STS (skin-effect tracing) system is ideally suited for long transfer pipelines up to 12 miles (20 km) per circuit. The system is engineered for the specific application. In the STS heating system, heat is generated on the inner surface of a ferromagnetic heat tube that is thermally coupled to the pipe to be heat traced. An electrically insulated, temperature-resistant conductor is installed inside the heat tube and connected to the tube at the far end. The tube and conductor are connected to an AC voltage source in a series connection. This method of heating is called skin-effect heating because the return path of the circuit current is pulled to the inner surface (approximately 1 mm) of the heat tube by both the skin effect and the proximity effect between the heat tube and the conductor.
A Tyco Thermal Controls skin-effect tracing system minimizes the number of power supply points required by offering the longest circuit lengths available to the industry.
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