Roof Antifreeze Heating Cable Selfcontrol Temperature Electric Heating Wire 220V
Roof Antifreeze Heating Cable Selfcontrol Temperature Electric Heating Wire 220V
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Roof Antifreeze Heating Cable Selfcontrol Temperature Electric Heating Wire 220V

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Key item features

  • Brand new and high quality
  • Made of high quality material, strong and
  • Widely used in outdoor fire protection, petroleum, industry, steel, electricity and other pipelines, storage tank antifreeze, roofs, gutters and snow melting.
  • There is a unified PTC material core strip between two parallel metal bus bars. When the two busbars at end of the cable are connected to a power source, current flows laterally from busbar to the other through the PTC material layer.
  • The PTC layer is a resistance heating element, which is continuously connected in parallel between the bus bars to convert electrical energy into heat energy. The resistance of the core tape increases with temperature, reaching about 50-60 degrees. The resistance is so high that it almost blocks the flow of electricity. When the upper limit is reached, the temperature of the core belt will not increase, but will automatically increase the temperature to a limited extent.
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