Self-regulating heating cables consist of two parallel bus wires embedded in a networked plastic heating element, doped with surrounding carbon particles. If the temperature increases during operation, the plastic expands due to molecular expansion and the distance between the carbon particles increases. Resistance increases and output drops. When it cools down, this process is reversed and output increases.
This physical property provides several benefits, including the ability to overlap the self-regulating cable and installation without the requirement of a temperature cut-out device.
Benefits:
- Self-regulating with adaptable output
- Various temperature range applications
- High chemical resistance
- No temperature regulation or limiting required
- Easy to lay and to install
- Can be cut to length off the roll
