My First DIY Power Cable

Ok.  I think I am going to go with the Viborg copper connectors off of Ebay.   Could someone recommend a moderately priced cable that would be a good match?  

If you like the Viborg story, go with their bulk power cable.  I have a couple and they are solid.

@mbolek - that's an interesting cable you have posted.

Which wires did you use for the Live

• I would probably use the central yellow conductor for the Live

Have you tried different variations?

Cheers

@williewonka 

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)

@mitch2 - thanks for that clarity.

A very interesting design.

In some ways similar to the Helix DIY cables

• Helix DIY power cable

Based on the effectiveness of my Helix DIY power cables I would actually use

• the center conductor as the LIVE
• and the outer wires for ground and neutral,
• which would have a "screening" effect around the center (live conductor),
  • while minimizing induced noise from the center conductor into both neutral and ground conductors
    • i.e. assuming those outer wires are infact spiralled around the center condcutor.
• plus another benefit of the DIY Helix cables is the ground and neutral is larger than the Live conductor - which is also the case if this approach is adopted

Just thinking out loud 🤔

Regards - Steve