I have a project that runs on 5V and should draw a maximum of around 500 mA. There is an existing CAT5 cable running conveniently to this project. I'm considering powering the project by using two of the wires in the CAT5 (which I assume is 24 AWG) by connecting it to a 5V - 2A power supply.
Is this safe? Is the amount of power my project draws (500mA) the determining factor for safety or the rating of the power supply (2A)?
Testing shows there is no problem with voltage drop-off.