Machines and systems have become automated these days
Copper happens to be the product of choice when it comes to conductors but then it needs to be combined with other metals for introducing properties as suited for specific systems. Tin coated wire happens to be an instance of the same. Copper wire in this form is built through a process that involves first the wire being drawn then subsequently annealed. Post this; tin plating is done through hot dip process or the electroplating process. This procedure culminates in the formation of a cable that is used as overhead power source for transit systems, cranes, subways, etc.
Tinned wire finds multiple uses today as in combination with other materials it builds robust conduction systems that find use in house wiring, control panel and similar electric or electronic set ups.
Tin wire is also being put to use in CRT systems such as televisions and computer monitors. This comes about in the form of tin coated wire that has multiple flat or rounded wires braided together.
As other sectors see advancements and innovation, the world of conductors too continues to see materials being tested in combination or without. The requirements of different sectors, different conditions to be maintained in manufacturing and the need for specific materials in electric or electronic systems has given rise to innovation and combination of materials to bring about products suited to different needs.
Connecting systems are required in products such that these can withstand constant stretching and vibrations. Copper flexible connectors come into the picture here. These again make use of tinned wire.
Manufacturers continue to build these products to specifications as per product requirements and also standard products that have been in use for long and are required for particular industrial usage, continue to be available.
Copper has always been the chosen material because of its conducting properties. The difference now is that other materials are being used in combination to further enhance its properties as the material of choice for conductance.