The nVent RAYCHEM BTV family of self-regulating electric heat trace cable is an ideal solution for pipe freeze protection and process temperature maintenance applications. RAYCHEM BTV heat trace cables maintain process temperatures up to 150°F (65°C) and can withstand intermittent exposure to temperatures as high as 185°F (85°C).

Additional Product Information:

  • RAYCHEM BTV heat trace cables are configured for use in nonhazardous and hazardous locations
  • RAYCHEM BTV heat trace cables are configured for use in areas where corrosives may be present
  • RAYCHEM BTV heat trace cables meet the requirements of the U.S. National Electrical Code and the Canadian Electrical Code.

Industries Served:
Chemical and Pharmaceutical
Food and Beverage
Oil and Gas

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RAYCHEM Self-regulating Heat Tracing System Installation Video

Technical Specifications

  1. The heating cable shall consist of two 16 AWG or larger nickel-plated copper bus wires, embedded in a self-regulating polymeric core that controls power output so that the cable can be used directly on plastic or metallic pipes. Cables shall have a temperature identification number (T-rating) of T6 (185°F or 85°C) without use of thermostats.
  2. A ground-fault protection device set at 30 mA, with a nominal 100-ms response time, shall be used to protect each circuit.
  3. The heating cable shall have a tinned copper braid with a resistance less than the heating cable bus wire resistance as determined in type test (ASTM, B193, Sec. 5). The braid shall be protected from chemical attack and mechanical abuse by a modified polyolefin or fluoropolymer outer jacket.
  4. In order to provide rapid heat-up, to conserve energy, and to prevent overheating of fluids and plastic pipe, the heating cable shall have the following minimum self-regulating indices:

    Minimum Self-Regulating Indices
    Heating cable S.R index (W/°F) S.R index (W/°C)
    3 W/ft 0.038 0.068
    5 W/ft 0.060 0.108
    8 W/ft 0.074 0.133
    10 W/ft 0.100 0.180

    The self-regulating index is the rate of change of power output in watts per degree Fahrenheit or watts per degree Celsius, as measured between the temperatures of 50°F (10°C) and 100°F (38°C) and confirmed by the type test and published data sheets.
  5. In order to ensure that the self-regulating heating cable does not increase power output when accidentally exposed to high temperatures, resulting in thermal runaway and self ignition, the cable shall produce less than 0.5 watts per foot (1.64 watts per meter) when energized and heated to 350°F (177°C) for 30 minutes. After this test, if the cable is reenergized, it must not have an increasing power output leading to thermal runaway.


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RAYCHEM Self-regulating Heat Tracing System Installation Video

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