The purpose of calculating earthing rod/plate electrodes is to determine the necessary dimensions and number of electrodes needed to effectively dissipate electrical energy into the ground and protect against electrical hazards.
IS3043 is an Indian standard for earthing practices, while IEEE 80 is an international standard. They both provide guidelines for designing and calculating earthing systems, but they may differ in specific requirements and methods.
The number of earthing electrodes needed can be calculated by considering the fault current, soil resistivity, electrode dimensions, and safety factors. This calculation can be done using the formulas provided in the IS3043 or IEEE 80 standards.
The resistance of an earthing electrode can be affected by several factors, including soil resistivity, electrode material, electrode dimensions, and surrounding environment. It is important to consider these factors when calculating earthing rod/plate electrodes to ensure an effective and safe grounding system.
Yes, it is possible to use different types of electrodes, such as rods and plates, in the same earthing system. However, the design and calculation of the system should take into account the differences in resistance and effective area of each type of electrode to ensure proper grounding.