Definition on copper nature A or C
Cu-A1 - ISO equivalent : Cu-ETP copper content > 99,90 %
Cu-C1 - ISO equivalent : Cu-OF copper content > 99,95 %
Multiwire - product made of several same diameter wires, with a same length and a parallel assembly.
Round strands - assembly of wires well ordered in concentric lays around a central wire. The "n" lay is made of ( n x 6) wires.
Bunch - hélicoidal assembly of wires in the same sense and same lay length, without any precise lay.
Cable - concentric assembly of round strand or bunch.
Unilay - Unilay - round strand with minimum 2 lays of same diameter wires, with same sense and same lay length arrange to reduce the external diameter under a simple round strand.
1 Round strand, same sense, same lay length - standard
2 Round strand same or different sense, different lay lengths
3 Round strand, same sense, same lay length - Unilay