I think I'm getting close.
Step 1. Made a skinny rectangular selection with rounded corners and applied Rod's Steel_Cable_RD gradient.

Step 2. Filters>Distort>Curve Bend and just played around until I got it to look half way decent.

Step 3. Made a GIH brush set to Incremental and a spacing of 10 and made a horizontal stroke.

Step 5. Cropped the result and added a copper colored layer and dulicated it. The first one set to Overlay and the top one to Dodge and 50% Opacity.

Step 6. Merged everything and duplicated it. Moved the duplicate to the right until it looked like one piece then Alpha to selection and cropped the original.
Step 7. Got rid of the duplicate layer and duplicated the altered original twice and moved them into position to the right to make a longer cable.

Getting there. Now to make a cable out of the strand. Might need your help to twist these Rod.