Hi, I bought some carbon fibre heating element for warming a seed raising tray. The product is usually used for under floor heating. I want to chop it down and use temperature control via arduino to switch it on and off.
This is what I bought:
https://www.aliexpress.com/item/PR-infrared-heating-floor-heating-cable-system-carbon-fiber-wire-electric-floor-hotline-Length-10M/32241638232.html?spm=2114.13010608.0.0.rurFuSI don't want to use 220v to power it, but having trouble finding alternatives. My guess is I could use a current limited 12v DC supply.
Does anyone know if it matters AC or DC? Is current limiting the way to go? Do I need to bother with limiting current since it already has 33ohm/m internal resistance?
More specification from the link are:
Product Name: Carbon Fiber Wire
Insulating materials: silicone rubber (Rou Ruan) / 180 oC limit
Heating conductor: 12K.
High voltage test: 3000V
Leakage current: 0.05mA/m
The product can withstand the power of power: 25W/M
Rated voltage: 300V
Complete the outer diameter: 3MM
Optional colors: Red
Diameter tolerance: 0.2MM
Infrared wavelength: 8UM-18UM
Conductor resistance: 33 ? / M
Length: (custom, recommendation of not less than 10 meters))
Product power calculation:
Voltage * voltage / resistance = power
For example: 12K carbon fiber length of 10 meters
220V × 220V / (10 m x 33 Ohm) =150 watts
For example: 12K carbon fiber length of 15 meters
220V × 220V / (15 m x 33 Ohm) =100 watts
Power data can be seen using a heating line is long and the smaller the hotline
Product features:
With excellent heat resistance, at 150 C can be used for a long time and almost no change in performance, sustainable use
of 180 C for 100000 hours.
Excellent insulation, insulation resistance is greater than 500M, the resistance is stable over temperature and a wide
Thanks.