Wires are generally manufactured as solid wires that are single strand, and as braided wires. Braided wires are used typically where there is a need for flexible connections or applications.
A standard braided wire consists of a conducting material and a tubular braid to form a protective sleeve around the conducting wires.
The singular reason why braided wires are used is they are much less likely to fracture or crack than solid wires. Moreover because of its flexibility, braided wires adapt themselves very well for electric work in tight spaces.
Among the various types of wires, copper or tinned copper or even tinning braided copper wire are the most common types in various wiring applications because these have minimum resistance and low cost.
For wiring, copper is considered the best base metal for the following reasons.
- Excellent electrical conductivity – It has the highest electrical conductivity rating among all non-precious metals. The other most commonly used substitute, aluminum has 61% of the conductivity of copper.
- Tensile strength – Copper has got a high tensile strength, which allows it stretching without failure.
- Ductility – Copper has the best ductility properties, enabling it excellent metalworking and stretching. It is for this reason; copper is easily drawn down to diameters with very close tolerances.
- Thermal conductivity – Thermal conductivity is a property that allows for good dissipation of waste heat. Copper has a 60% higher thermal conductivity than its close substitute aluminum, which makes it the best choice in wiring applications.
The other properties of copper that makes it suitable in the electric industry are corrosion resistance, ease of installation and solder-ability.
Addition of tin to copper, or an alloy of tin and copper is finding many useful applications in the electrical industry.
As an electroplated layer over copper, tin helps in protecting the copper underneath in severe and humid climates. A bare copper wire on the other hand, loses performance in humid or tropical environments.
Tinning braided copper wires have wide uses as flexible connectors for electrical appliances, electrical stoves and batteries. These wires have an added advantage in that they can be custom made as per customer drawings or requirements.
Some of the well-known domestic manufacturers of tinning braided copper wires make high class products in compliance to industry standards and specifications.
With stress on high quality engineering, consumers are demanding tinning braided copper wires with features such as high conductive ratio, ability to recompense vibration, expansion and contraction of busses, and durability.
India is now witnessing a boom in the Information Technology and Communication segment. This brings good tidings to the copper wire industry manufacturers.
Although the world demand for copper wire reached a plateau between 2007 and 2013, the demand is now picking up. Domestic manufacturers are making the most of the opportunities by manufacturing a broad product mix to suit many applications.