OEM Electric Self Limiting Roof Heat Trace Cable Flexible Silicone Rubber Automatic Motor for Pipe and Driveway

Self regulating cables have an adaptable heat output and consist of two parallel bus wires embedded in a networked plastic heat element with surrounding carbon particles. If the temperature increases during operation, the plastic will expand and the distance between the carbon particles increases, resistance increases and output drops. When ambient temperature falls, this process is reversed and heat output increases – this is the principle of self regulation.Self regulating cables intelligently adjust heat output according to ambient or air temperature – whenever the heat loss of the insulated pipe, tank or heated process increases (as ambient temperature drops), the heat output of the cable increases. Conversely, when the heat loss decreases (as the ambient temperature rises or product flows), the heating cable reacts by reducingits heat output.