The electric heating cable has the function of actively restricting the heating temperature, so the electric heating cable itself will not be burnt due to the high self-heating temperature.
Electric heat tracing system structure diagram
Electric heating cable, electric heating cable introduction:
1. Electric heating cable structure:
(1) Inner layer conductor, tinned round copper wire (2*1.5 flat).
(2) The conductive thermoplastic, because of the use of PTC material, can automatically adjust the output power and actively restrict the heating temperature according to the temperature of the forced heating system.
(3) The outer layer is a double-layer flame-retardant polyolefin with a shielding layer
2. The use temperature range of electric heating wire:
Maximum exposure temperature 85℃, maximum surface temperature 85℃
The maximum maintenance temperature is 65°C, and the minimum operating temperature is -40°C
3. Construction temperature: Minimum: -40℃
4. Thermal stability: After 300 cycles back and forth between 10°C and 99°C, the calorific value of the cable remains above 90%.
5. Bending radius: 25.4mm at room temperature of 20℃ -35.0mm at low temperature of 30℃
6. Insulation resistance: When the cable length is 100m, and the ambient temperature is 75℃, shake it with 2,500VDC for 1 minute, and the minimum insulation resistance (between the wire and the shield) is 120MΩ.
7. Starting current (10℃) 0.4A per meter
There are many features of electric heat tracing tape, but the main features are as follows:
1. Low temperature state, quick start, uniform temperature, because each part can be adjusted automatically due to the temperature change of the heat tracing place.
2. Simple installation, simple protection, all-day service, high level of automation, and low operating and protection costs.
3. Safe and reliable, widely used, does not pollute the environment, and has a long service life. Self-controlling electric heat tracing wire (self-regulating electric tracing wire) is widely used in the heat preservation, anti-coagulation and anti-freezing of pipelines and storage tanks in petroleum, chemical, steel, electric power and other industrial enterprises.