After power is turned on (note: the end core wires must not be connected), current flows from one core wire through the conductive PTC material to the other core wire, forming a circuit. The electric energy heats the conductive material, causing its resistance to increase. When the temperature of the core belt rises to a certain value, the resistance becomes so high that it almost blocks the current, and the temperature no longer rises. At the same time, electric heat tracing transfers heat to the lower-temperature heated system. The power of the electric heat tracing is mainly controlled by the heat transfer process, automatically adjusting the output power according to the temperature of the heated system, while traditional constant-power heaters do not have this function.
Product Features
1. Heat tracing I·Structure: inner layer conductive thermoplastic, outer layer double-layer flame-retardant polyolefin with shielding layer
2. Temperature range: maximum exposure temperature 85°C, maximum working temperature 65±5°C, minimum operating temperature -60°C
3. Installation temperature: minimum: -5°C
4. Thermal stability: after 300 cycles between 10°C and 99°C, the heat output of the heat tracing remains above 90%.
5. Bending radius: 25.4mm at room temperature 20°C, 35.0mm at low temperature -30°C
6. Insulation resistance: for a heat tracing length of 100m, at ambient temperature 20°C, using a 2,500VDC megohmmeter for 1 minute, insulation resistance (between conductor and shield) minimum value is 20MΩ
7. Starting current (10°C): 0.4A per meter
8. Please refer to some precautions for installation and use
9. Maximum use length: not exceeding 100 meters
