Wireworld USB cable wire layout

[grahamfocal]

Hi. Wondered if someone could help
Bought some unterminated wireworld ultraviolet cable for a 10ner to make my own usb cable.
What would say are the cables.
Black and red assume 5v and gnd ?
The other two in the foil signal cables?
What also do you suppose is the third uninsulated wire for?

Thank you. This is my first attempt at usb cable

 

[indaco]

The fifth uninsulated wire is for shielding purposes, preventing the EMI disturbances which this kind of cable is sensitive to. In practice it is usually tied to the plug shells at both ends of the connectors.

 

[grahamfocal]

Thank you, are my other suggestions for the other wires correct?

 

[indaco]

Yes. The black is gnd, red +5V, and green and white respectively data(-) and data(+)

 

[grahamfocal]

Thank you so much.

 

[indaco]

Cheers!