solar cell bus wire/bus wire/tab wire/tabbing wire

1,Elongation≥25%

2,Tensile strength≥170MPa

3,Side camber≤3mm/m

4,Soldering tin melting point: 180−230°c

Core Copper of TU1 Off-Cu or ETP1:

1,Copper Purity ≥99.97%, Oxygen≤10ppm

2,Resistivity:ρ_20≤0.0172Ω • m m²/m

Electric Resistivity of Ribbon:

(2.1−2.5)X10^-2 • mm²/m

Plated Thickness:

15-25um per side 

Composition of Plated Material:

1)    Lead series products:

A,Sn 60%, Pb 40%

B,Sn 63%, Pb 37%

C,Sn 62%, Pb 36%, Ag 2%

D,Sn 60%, Pb 39.5%, Ag 0.5%

2)    Lead-free series products:

A.Sn 96.5%, Ag 3.5%(Bi)

B.Sn 97%, Ag 3% and so on

 Tabbing wire specification

Bus wire specification

2. Storage Conditions and Shelf Life

PV ribbon should be stored in dry and ventilated room, where sholud be no acid, alkali, or harmful gas and the indoor relative humidity should not exceed 60%.  Place it horizotally while stacking and avoid the carton extrusion, meanwhile, the stacking quantity of same product should not exceed five layers or 1 ton.  The shelf life can be up to 6 months since the production date.