Trifoil Cable

0.1 mm².

If the foils are thin enough, three of them can be wrapped around almost anything.

Almost any size you want, but for small sizes you will have to use round clips. What size were you thinking of?

In many of your previous postings too, you seem to have a terrible spelling problem. I assume, in your present question, it is "TREFOIL" and not "trifoil".

TREFOIL is a method of laying together more than one single core armoured cable of different phases - to avoid induced emf in the cable armours due to circulating eddy currents. It can be practised for any size of single core armoured cable as long as they are laid together and you want to avoid the induced emf in the armours of these cables.

thank you very much mr electricalexpert65, for your explanation.forgive me for my poor english and knowledge..also thanks for my spelling correction.