Last post i already discuss about Earthing system classification.I mention earthing system have a several types such as TT,IT,TN-C,TN-S and TN-C-S.This time i want explain detail about type of earthing systems. Earthing system is designed followed by electrical system required and the application.It have different earthing system for each electrical application such as consumer power [...]
In electrical wiring and installation,earthing is the important thing that we must make sure it in our job scopes.Earthing in electrical installation is for the safety and electromagnetic power supply purpose.It also to ensure all equipment or device is safe from risk of electric shock and make sure the residual current device operate properly. Earthing [...]
Ground Resistance Testing Principle #2 What is two point method measurement? This is another alternative method for earthing resistance measurement when excellent ground is already available.When we want to perform the measurement for earthing resistance in the compact room or tight area and want to put the two(2) auxiliary rod may be a problem. So..to [...]
Ground Resistance Testing Principle #1 What is the 62% method? The 62% method has been adopted after graphical consideration and after actual test. It is the most accurate method but is limited by the fact that the ground tested is a single unit. This method applies only when all there electrodes are in a straight [...]
Testing principle The potential difference between rods X and Y is measured by a voltmeter, and the current flow between rods X and Z is measured by an ammeter. (Note: X, Y and Z may be referred to as X, P and C in a 3-point tester or C1, P2 and C2 in a 4-point [...]
What is Earthing System? Grounding or Earthing system is a connection system between metal and ground from the installation of electrical wiring. It is for provide easy access to a low impedance, or resistance to earthing protection system to operate effectively, to ensure the safety of people or users from shock hazards electricity in the [...]
