10 Lowest Electricity Accessible Countries in the World

Which Country Access the Less Electricity   in the World? Electricity is the most essential part of daily-life today. But fact is that around 1285 million people still access no electricity today over the world. The most of them are in Africa and Asia. Now everybody realized that without access to electricity sustainable development is not possible, most of the countries are trying the increase the electricity access rate up to 100% and trying everyday.
In Asia around 622 million people out of 3.6 billion do not have electricity. Large percentage of people do not have electricity access in North Korea, Myanmar (Burma) and Cambodia. On the other hand Malaysia, Singapore, Thailand, Brunei and Mongolia are accessing electricity hundred percent people.
India has the largest population that does not have to access electricity around 304 million people. Indian 94 percent urban and 67 percent rural people can access to electricity.

In America 23.2 million  out of 466.1 million people do not …

Copper and Aluminum Bus-bar Size Selection Chart

What is Bus-bar? Bus-bar is the common header where one or multiple sources poor the power also one or more sources can take power simultaneously; means bus-bar is a common bas that receive power and release power.

Literally, the bus bar is usually very thick wire or bar that leads from the power source and is the wire that every load in the system is connected to.

Bus-bar like a city water reserver where water accumulated and distributed from.
Types of Bus bar Bus bar mainly classified into two, though the function is same.
1.In outdoor substation the bus bar is a kind of bulk sized aluminum conductor;
2.In indoor substation copper or Aluminum bar is used as bus bar.
Why Bus bar is required in electrical transmission network? In electrical substations, the bus-bar is a common component where all the anchorages that have the same voltage level are connected. In an electrical transmission network it’s required an electrical node but it is physically impossible to connect all the bays- su…


What Is RCD or Residual Current Device?RCD or Residual Current Device is a generic term which covers both RCCB (Residual Current Circuit Breaker) and RCBO (Residual Current Circuit Breaker with Overload).
RCD is a protective device in electrical system which automatically disconnect the supply system  when imbalance detected in the value of phase and neutral current. British Standard BS 7671 defined RCD is as below: A mechanical switching device or association of devices intended to cause the opening of the contacts when the residual current attains a given value under specified conditions. The protective device RCD actually protect- direct and indirect contact, fire and thermal effect.

For clear understand the difference between RCD and other broadly used Circuit Breaker, we should remember the  definition of RCCB, RCBO, ELCB, GFCI etc.

RCCB (Residual Current Circuit Breaker) is an electrical protective device that break or disconnects the circuit to become in safe mood whenever it detec…


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