Power Transmission Cables and Electric Lines on Poles and towers are Loose why

Introduction

Now days transportation is not a matter for people , goods and services for longer distances because of technology in transportation facilities. How ever distance is not a problem for people, goods and services easily transported for longer distances or destiny. In the same way ELECTRICITY is no different but electricity transported across longer distances not like goods, transported by electrical lines are transmission lines and transmission cable. Electric lines on poles and towers are will not be tight they can be loose lines.

electricity needs a medium through that it’s transported. typically times you’ll notice that the ability transmission cables hanging on electrical poles square measure loose. you would possibly have thought. Let’s decide why the cables are loose on electrical poles however before then let’s take a pip at some necessary tips that might facilitate United States perceive higher.

 

transmission

Power Transmission

Electricity are often transported over an extended distance via cables that function a medium of transporting the electricity. Power is measured in watts. Power is that the rate at that work is completed. Work is completed once electricity is covers a distance. By that we will say that power is energy delivered per unit time.

Electric current causes the dissipation of warmth and this heat is really not smart because it causes the electrical cables to wear out and cut that’s why so as to avoid wasting the transmitted power, current that causes heat and eventually sporting out of cables should be transported during a tiny amount whereas the voltage in great quantity therefore the name High-Voltage power transmission.

Conduction and Resistance

During power transmission, power is defeated to our surrounding because the transmission cables don’t seem to be insulated. in keeping with Ohm’s law, Resistance R varies directly with the length of the conductor L, which means that because the length of the conductor will increase, its resistance will increase. Air isn’t a decent conductor and in and of itself it cannot conduct away the warmth dissipated by the electrical cables, that is why the electrical cables square measure built in such the way that it offers very little or no resistance to the flow of electrical current by increasing the diameter of the conductor.

Electric Cables

Electric cables area unit conductors principally copper wires through that electricity is transmitted. The cables but aren’t strictly copper. so as for the cables to possess some mechanical properties, the conductors area unit alloyed. The physical phenomenon of the conductor isn’t stricken by the opposite part with that it absolutely was combined. the opposite part provides the copper a mechanical property while not touching its physical phenomenon.

Effect of Whether and Temperature of Electric Cables

Resistance of a conductor will increase with increase in temperature. this is often as a result of, because the temperature of the conductor will increase, the electrons embedded within the conductor gain a lot of energy and moves arbitrarily thereby colliding with the opposite atoms which is able to later cause heat as a byproduct. the warmth made by the conductor once intense will cause the melting of the conductor itself. once the weather is hot, the cables tend to be a lot of loose.