Some questions about application of different heating sheet;.
1. The Installation method of silicone heating mat? Can I use DC power?
When using the silicone heating sheet, double-sided adhesive tape, room temperature vulcanization, hole positioning and other methods shall be selected according to the practice site. Silicone rubber heater cannot use DC power supply. The heating principle of the silicone heating sheet is that alternating current generates eddy magnetic field inside the silicone heating sheet, and eddy magnetic field generates eddy current inside the silicone heating sheet. The silicone heating sheet has high resistance. So vortex current into heat, if the use of direct current, silicone heating sheet will not have vortex current, can not produce heat.
2.What is the difference between 110V and 220V PTC heating sheet? What happens when you mix it up?
PTC heating sheet is the equipment of positive temperature coefficient, the resistance value increases greatly with the temperature. If 220V heating sheet used in 110, its resistance to add less, the current will be relatively large, but the heat does not necessarily add a lot of. Advocate matching application.
3. How to assemble 5 PTC heating element?
5 PTC heating plates should be connected according to different power needs. 1, 3 and 5 are one pole. 2, 4 is a pole, 1, 3, 5 together as one end; 2, 4 and together for the other end, access 220V is the full power.
4. Does PTC heating element explode?
PTC heating plate has a failure form called breakdown, breakdown sound accompanied by strong light. Under normal circumstances, PTC heating element will have external insulation structure, when the breakdown will have a small explosion, no bright light, and no harm.