This link sorts it out with a bit more information. Viborg uses the 6 black and 6 red wires as positive/neutral wires, and the 4 yellow wires as ground. I would be interested to hear it but there are a couple design choices that I would not have made, plus the math is wrong on the linked website:
- A safe practice is to use a ground wire that is at least as large as the positive/neutral wires
- My experience for noise reduction in a power cable or balanced IC is to have the ground outside of the shield and preferably spaced a bit away from the main conductors, instead of inside of the main conductors
- The math below from the website is wrong because an area of 3.49mm² is just over 12 awg not 19.5 awg, and an area of 2.32mm² is between about 13-14 awg and also not 19.5 awg
From the website:
Conductor material: 4N OFC
Conductor structure: 16 spiral super-Litz structure
Main conductors : 6x 0.5813mm² (19.5AWG) = 3.49mm²
Negative : 6x 0.5813mm² (19.5AWG) = 3.49mm²
Ground : 4x 0.5813mm² (19.5AWG) = 2.32mm²
Shield: 100% copper shield
Insulation: DuPont TEFLON (red, black, yellow)