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Signage Civil & MEP

Al Inshrah is also well known in the industry, as the leading manufacturer and supplier of all kinds of Signs, Underground Warning tapes, Engraving, Acrylic Fabrication etc.

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Switchgear Components

We manufacture and supply various high quality switchgear components which is the skeleton of modern electrical distribution systems.

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Signage Material Trading

We deliver wide range of sign materials both for indoor / outdoor. PVC/Traffolyte/Acrylic Sheets/Engraving Cutter, Colour vinyl rolls, Indoor/Outdoor Digital Print , Cold Laminaton and much more...

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Tinned Copper Busbar

Tinned Copper Bus Bar
Tinned Copper Busbar

For rigid electrical connections,Tinned coated Copper Bus Barsoffer a very efficient solution. Resistivity in copper bars is very low, 25 in^2 bar 1 foot long is only 0.0000329 Ohms-roughly 8 Watts lost at 500 Amps.

Tin plating is an excellent solution practically speaking, because it protects the copper, has reasonably lowresistance (higher than silver or copper but lower than nickel)

Where to use Tinned coated Copper Bus Bars:

  • Very rigid high power connections.
  • Connection of Field/Armature on Motor Terminals.

Where not to use Tinned coated Copper Bus Bars:

  • Anywhere that needs flexible connections.
  • Between battery terminals.(May cause undue stress to terminals.)

What is special with Tin Coating for copper bar?

  • Tin plate works well to prevent corrosion and provide a good, clean contact surface. Moreover Copper oxidizes and the oxides do not stay on the copper well. When they come off there is more copper exposed, which in turn oxidizes, and so-on. Also the oxides do not conduct well. This causes poor electrical contact, which then gets hot and increases the oxidation rate. The oxides, because of their poor conductivity, also cause arcing at the electrical contacts, eroding the copper. Due to this reason Tin Coating is recommended for busbar in most applications .

Tin plating has two main technical advantages:

  • The thin tin oxide film (10-30 nm) forms on the surface of the tin coating could act as a shield, inhibiting further oxidation; and
  • Being a relatively soft metal, tin provides a low constriction resistance.