| Copper is one of the most commonly used | | | | continuous to be the metal used most for |
| metals for electrical wiring. The obvious reason | | | | electrical purposes. There are many kinds of wires |
| being its high electrical conductivity. The | | | | derived from copper. Braided Tinsel Wire for |
| conductivity of copper allows the electricity to | | | | instance, refers to a low voltage electrical wire |
| pass through it without being much heated up. | | | | fabricated using copper by wrapping a number of |
| Owing to its high cost, aluminium wires started | | | | copper foil strands around textile core. It is highly |
| being used in place of copper wires. | | | | flexible and is known to have resistant against |
| Aluminium wires had been used widely in the | | | | metal fatigue. Since it offers an excellent service |
| North American residential wiring from 1960s to | | | | Braided Tinsel Wire has become very popular. |
| 1970s. The major drawback of aluminium wiring is | | | | Copper Tin Wire is another product. Since |
| that it requires larger conductors as compared to | | | | rubber-insulated cables tend to become brittle as |
| copper because of its greater resistivity. | | | | a result of exposure to oxygen; copper tinned |
| Aluminium conductors originally were utilized along | | | | wire is now used in its place. |
| with the wiring devices for copper wire. This could | | | | Rubber has other disadvantages such as when |
| result in defective connections until devices such | | | | switches or light fixtures are replaced; tightening |
| as breakers, receptacles, switches, splice | | | | connections cause insulation to flake off |
| connectors, etc. were designed to address | | | | conductors. Apart from this, rubber is hard to |
| problems with junctions between dissimilar metals, | | | | separate from copper. Copper Tin Wire, thus |
| oxidization and mechanical effects with | | | | became a popular substitute. Tinned copper wire |
| temperature increase. Therefore the standards | | | | is used as overhead power source in subways, |
| for wiring devices were revised. Today aluminium | | | | light as well as heavy transit systems. There are |
| conductors have earned its wide usage in power | | | | a large number of manufacturers providing |
| distribution as well as large feeder circuits; since | | | | Aluminium Wire, Copper Tinned Wire, Braided |
| earth has abundant deposits of aluminum, it | | | | Tinsel Wire and Bunched Tin Coated Wire in India. |
| comes cheap and serves as a good alternative | | | | With the increase in the demand, the number of |
| majorly in large feeder circuits for heavy current | | | | manufacturers and suppliers are also increasing |
| loads. Due to its special properties, copper | | | | day by day. |