PROTECTIVE CONDUCTORS
Protective conductors are used to providing protection from electric shocks and thus it will allow sufficient current to flow so that the protective device cantrip. a protective conductor current is the current which appears in the protective conductor such as leakage current and it will be due to the insulation fault. circuit protective conductors which are a system of conductors joined together and it will be connected to the main earthing terminal. protective conductors are the main part of every earthing protection system
CONTINUITY TESTING
All the conductors must be checked so that we can make sure that they are electrically continuous by the continuity testing we can check that whether it is electrically safe and properly connected We must check three main things while doing the continuity test • The checking instrument must have batteries that are adequate for the task • The instrument and connecting leads must be zeroed • Accuracy of the test instrument is another important thing
CONTINUITY OF THE EARTHING CONDUCTORS AND PROTECTIVE BONDING CONDUCTORS
We must use an ohmmeter to check the continuity of the protective conductors which includes the main and the supplementary bonding conductors Main bonding is done by connecting the terminal of the test instrument to the long test lead and then it must be connected to the installation main earth terminal and the other terminal of the instrument is connected to another test lead and it will be used to make contact with the protective bonding conductors at its end
CONTINUITY OF PROTECTIVE CONDUCTORS
At first, we must check if any earthing system is continuous and a low resistant path which will allow the passage of fault current to operate the protective device during the fault conditions There must be zero potential between metal parts and the exposed conductive parts so that we could reduce the effect of electric shock during the electrical installation The conductors including the line and the neutral conductors must be connected in the correct sequence for the safety and for operational purpose