ENHANCED ELECTRODES FOR LOW-CONDUCTIVITY SOILS
A lack of free ions in the surrounding ground is detrimental to the correct performance of the earthing. Earthing systems using dynamic electrodes are based on the contribution of ions to the ground.
The system mainly consists of a copper electrode (APLIROD®) filled with a mixture of ionic compounds. The moisture condenser absorbs environmental moisture and dissipates it in the soil surrounding the electrode, adding free ions and gradually lowering the resistivity of the soil.
The effectiveness of this earth electrode is improved by placing a ground conductivity improver, such as CONDUCTIVER PLUS (AT-010L) around the electrode.
Soil resistivity and site characteristics are the main factors to be considered when determining the electrode model to use. Where the soil shows a lack of ion presence or the material that may be affected by lightning is extremely sensitive, longer electrodes, several earthing systems, or a combination of both, should be used.
The most appropriate configuration in most cases is a triangular arrangement. Vertical shapes are good to obtain low earth resistance values. L-shape models are better when you cannot make a deep excavation.