Tinned Copper Wire is copper wire with a coating layer of tin, The
copper (including single, stranded and special conductors) should
meet GB*****2 Requirement with respect to the purity and impurity
of No.2 copper, namely silver copper≥*9.9%, oxygen≤0.*5%, other
impurities﹤0.*5%, except for special demands. The tinning layer
should meet GB*****4 Requirement with respect to the purity and
impurity of No. 2 tin, namely tin≥*9.8% and impurities≤0.2%. The
diameter range is 0.***3.0mm. Size Tolerance: Norminal Diameter
d(mm) Tolerance 0.***0.**5 ±0.**3 0.****0.**0 *0.**4/*0.**2
0.****3.**0 ±1%d Performances: Norminal Diameter d(mm) Elongation %
no less than Resistivity ρ*0 m m^2/m no less than 0.***0.*9 6
0.****1 0.***0.*5 *2 0.****2 0.***0.*0 *5 0.****0 0.***2.*0 *0
0.****0 2.***3.*0 *5 0.****0
