Parameters

Resistivity

Electrical Resistivity (Resistivity, specific electrical resistance, or volume Resistivity) is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge.


———————————————————————————————————————————————————————

Base Material

Copper is one of the most useful metals known to man, and it was one of the first to be utilized. It has the second best electrical c onductivity of the metals, second only to silver compared to which it has a conductivity of 97%

  1. UNS C11000 ETP 99.90% (Electrolytic tough pitch copper) is available in regular practice and is the standard supplied base material in our Interconnect ribbon and Busbar.
  2. UNS C10200 OFHC 99.95% (Oxygen Free High Thermal Conductivity copper) is available on special request.

———————————————————————————————————————————————————————

Coating Composition or Solder Type

Solder is a fusible metal alloy used to join together metal

Lead Based Solders

Alloy Composition

Solidus

Liquidus

Sn

Pb

Ag

°C

°C

60

40

-

183

191

62

36

2

179

179


Lead Free Solders

Alloy Composition

Solidus

Liquidus

Sn

Pb

Ab

Bi

Cu

°C

°C

95.5

-

3.8

-

0.7

-

MP217

96

-

2.5

1

0.5

-

MP222

96.5

-

3.5

-

-

221

221

99.3

-

-

-

0.7

227

227

100

-

-

-

-

-

MP232

The solders are available on customer request.

All solder coating come with a spectrometer test certificate ensuring the correct proportions and uniform coating quality.

———————————————————————————————————————————————————————

Automated laser controlled Tolerance

———————————————————————————————————————————————————————

Leveled Winding

The Spools and Reels are wound using state of the art automated systems giving a level and uniform winding to the finished ribbon for easy and hassle free unwinding.

———————————————————————————————————————————————————————

Tensile Strength  / Yield Strength

Computerized System are used to measure the mechanical properties of the Interconnect ribbon and Photovoltaic Busbar material supplied has properties as follows

Tensile Strenght  < 250 N/mm2

Yield Strenght < 140 N N/mm2

———————————————————————————————————————————————————————–

Elongation

Elongation percentage

Semi Soft :      Upto  Elongation %  15 %

Soft :               Upto  Elongation %  25 %

Super Soft :     Upto  Elongation %  35 %

———————————————————————————————————————————————————————–

Camber

 

The ribbon straightness (Camber ) less than 6mm