The working principle of the heating cable:
The inner core of the heating cable is composed of a cold wire hot wire, the outside is composed of an insulating layer, grounding, shielding layer and an outer sheath, after the heating cable is energized, the hot wire is heated, and runs at a temperature of 40~60 °C, the heating cable buried in the filling layer transmits the heat energy to the heating body through heat conduction (convection) and the far-infrared radiation of 8-13um emitted.
Composition and working principle of ground radiant heating system of heating cable:
Power lines→ transformers→ low-voltage distribution units→ sub-household meters→ thermostats→ heating cables→ radiate heat to the room through the floor
a. Use electricity as an energy source
b. Use the heating cable as the heating element
c. Heat conduction mechanism of heating cable
(1) The heating cable will heat up after being energized, its temperature is 40 °C-60 °C, through contact conduction, heating the cement layer surrounding it, and then transmitted to the floor or tiles, and then heating the air by convection, the conduction heat accounts for 50% of the heating capacity of the heating cable.
(2) The second part is that after the heating cable is energized, it will produce the most suitable 7-10 micron far-infrared rays for the human body to radiate to the human body and space. This part of the heat also accounts for 50% of the heat generation, and the heating efficiency of the heating cable is nearly 100%.
After the heating cable is energized, the hot wire composed of nickel alloy metal inside heats up, and runs at a low temperature of 40~60 °C, and the heating cable buried in the filling layer transmits the heat energy to the heating body through heat conduction (convection) and the far-infrared radiation of 8-13μm.
