I was looking to get a small amount of power to be transmitted ~100ft, and noticed there is a standard way to move power over Ethernet cables.
We actually plan to splice the cables ourselves, and not use a standard Power over Ethernet, but wanted to confirm how much power I can dependably pass through a single pair? There will be no data transmission, no Ethernet devices. Only DC current.
Further, I wanted to know if it makes a difference which wires I use? I am not sure whether all 4 pairs (8 wires) are the same, or if only certain ones are built specially for power, while the others might be inappropriate for power, and only dependable for data?
Edit: Additional details: I have a transformer plugs into the 120V wall plug, and it says it outputs 5V 1.2A. So that is what I want the cable to support. I plan to cut the small wire coming out of the transformer and extend it using ethernet wires. If ethernet 1 pair is enough, I might do that. Or I might use 2 pairs just to keep the two transformers and end devices completely separate.