Dc circuit, resistive load, 18awg cable, 12v, 5 amps
In that combination, if i want to run longer then 20ft, it would require heavier wire to minimize voltage drop.
However, if I have a power supply that I can bump the voltage on, it effectively compensates for the voltage drop of the cable.
In this example, if I wanted to get a full 12v at the end of 30ft, I would need to bump up the voltage at the source about .4v.
I can't see any reason this would be frowned upon or dangerous, but I want to make sure I'm not missing something. I know at a certain point, the cable will run warm and efficiency will be horrible, but if I'm just going .4v over I don't see what bad could happen, as long as my power source is up for it. Am I right?
Probably a dumb question but I just want to make sure. Thanks in advance.
In that combination, if i want to run longer then 20ft, it would require heavier wire to minimize voltage drop.
However, if I have a power supply that I can bump the voltage on, it effectively compensates for the voltage drop of the cable.
In this example, if I wanted to get a full 12v at the end of 30ft, I would need to bump up the voltage at the source about .4v.
I can't see any reason this would be frowned upon or dangerous, but I want to make sure I'm not missing something. I know at a certain point, the cable will run warm and efficiency will be horrible, but if I'm just going .4v over I don't see what bad could happen, as long as my power source is up for it. Am I right?
Probably a dumb question but I just want to make sure. Thanks in advance.