In recent years, the amount of precipitation has increased in almost all regions of Russia. It is most noticeable in the midland of the European part of the country. Does precipitation affect the mounted grounding? And what is the threat of growing soil moisture?
Precipitation really affects the mounted grounding, in particular its efficiency. The more precipitation, the more effectively the mounted grounding works. How does it happen?
First of all, distribution of precipitation affects soil nature. Spreading of electrical current from the ground electrode will depend on the soil nature, in particular, its electrical conductivity. The more watersaturated soil is, the higher is its electrical conductivity and, as a consequence, the greater is the area of current spreading. But the precipitation negatively affects resistance measuring. Measuring in damp soil gives too low results that do not reflect the actual resistance of the grounding device. Therefore, for accurate measurement of resistance values, the measuring should be carried out in the first half of summer, during a period of most drying of the ground.
We conclude, that precipitation improve work of the grounding contour, but not exempt from real resistance monitoring to be carried out during the summer season with the regularity of a few years. Any questions on the mounted grounding or installation? Refer to the Technical Center for a free consultation!