Home and business electrical wires carry electricity from a source, usually a transformer, to a nearby outlet. Electrical appliances and electronic devices are also powered by these wires. There are different materials and sizes of electrical wires available to handle the variety of loads and conditions in which they will be used. Most electrical wires are made of copper, while there are others made from aluminum and other materials. In the case of household wiring, the conductor is usually copper or aluminum. Most of the wires in a house are insulated, which means they are covered with non-conductive plastic. Our company supplies insulated wires by Polycab.