ARTICLES
	CHOICE OF BUSBAR MATERIAL
	Copper Vs Aluminium
	Relative  Properties are Tabulated below :
		Copper	Aluminium
	Weight per unit length  for equal conductivity	1	0.50
	Conductivity for Equal area	1
	Electrical	1	0.61
	Thermal	1	0.56
	Tensile strength (Hand Drawn)	1	0.40
	Hardness ( Hard Drawn)	1	0.44
	Modulus of Elasticity	1	0.55
	Co-efficient of Thermal Expansion	1	1.39
	Melting point	1	0.61
The properties shows that Copper has advantages over aluminium in all respects.
Copper is most economical metal.
Copper is resistant to all forms of corrosion.
Long & reliable service life with minimum maintenance cost.
Has a high scrap value.