Sankalp Industrial Services

Overhead power line is an important part of power system.  The cost and life of transmission line primarily depend on the material used for making conductor for transmission line. The most important and much suitable material for conductor of transmission line is copper as it having high conductivity and high tensile strength, More ever it is having good ductility. Only Limitation is its cost. With the discovery of practical mass production methods for aluminum processing, the price of aluminum quickly fell, making it a more affordable choice for manufacturers and designers. It takes an aluminum wire with a diameter 1.5 times that of copper to transmit the same amount of electricity, but that wire will be three times lighter, meaning that aluminum is a more efficient material for electrical applications. High voltage overhead power lines are manufactured from aluminum to reduce weight while supplying good conductivity. Aluminum is having sufficient conductivity. More ever it is lig...

The electrical insulator  is a device that provides the required insulation between the line conductor and earth. Due to this insulation, leakage current can’t flow from the line conductor to earth. Insulator a material or a device which restrics the flow of free electrons (or charge).  The successful operation of an overhead line depends to a considerable extent upon the proper selection of insulation.  Importance of Electrical Insulators- The insulator work as a Protector or Protective device. Because it provides high resistance. Insulator helps to protect from heat, noise, and electricity. The insulator is used to support the overhead conductor. It is commonly used to insulate the live parts of equipment or conductor from the earth. The live conductor is protected by wrapping the insulation. It helps to protect switchgear, transformers. Properties of Electrical Insulator- The electrical insulator has a high resistivity. Insulator has good mechanical strength for the c...