The Earthing Electrode is a pipe, plate, metallic rod, or mat which has extremely low resistance for carrying the fault current to the ground safely. Earthing electrodes can be made of iron or copper which has good corrosion resistance. For placing the earthing electrodes wet or moisturized earth is chosen since dry soil displays increased resistance. It may be one or more spikes pressed into the ground or a foundation ditch loop, or a combination of both. The offered Earthing Electrode is a resistor by which the system is earthed and will limit the current flow in the event of an earth fault.
The primary purpose of using an earthing electrode is for creating a zero potential surface around the area where electrical equipment is to be installed. In doing so, the non-current carrying part of the equipment is connected to the earth. Earthing electrodes provide safety to people and electrical installations by safe dissipation of fault currents and prevention of dangerous voltages on the enclosures.
The main purpose for which an earthing electrode is used is to ensure a zero potential surface around the area where the installation of electrical equipment has been done. It is achieved by connecting non-current carrying parts of the equipment to the earth. It works by preventing the occurrence of dangerous voltage on the enclosures and helps in providing safety to people around. Earthing electrodes are particularly designed and installed to better an electrical systems earthing. Depending on the application, earthing electrodes are also available as Chemical Earthing Electrode and Pipe Earthing Electrode. In chemical earthing electrodes, powder coating is used instead of coal and salt. Such electrodes use back fill chemical compound which is used around the earthing electrodes to reduce resistance between soil and the electrode.