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It is used to make vertical earth electrodes. The set consists of 1.5-meter rods joined together by hammering. The first of the rods is sharpened, which makes it easier to sink it into the ground. Multiplication of the length of the earth electrode is possible by pressing successive elements until the earth resistance is not greater than 10 Ohm. Simple construction speeds up the assembly time. It is perfect for grounding in power, railway and construction infrastructures.