Interesting question. When a well known manufactors like "Klotz" oder "Sommer" offes combines video / power cable, it schould work. Maybe a power supply with 12V DC would be better for short distances like in a studio, because of less induction from power to video. Professional 14- or 26-Pin Cables also work with 12 V.
For long distances (100m) I may be would choose AC voltage (Europe 230 V), because of the voltage drop.