Comparison of Measurement Results in the Breaking System Between Copper Electrodes, Aluminum and Mixed Iron on Solid and Swamp Clay

Abstract

The grounding system or so-called grounding system is a security system from a possible electrical surge such as lightning. A good containment system will be influenced by the type of electrode used and the condition of the soil where the electrode is implanted. In this study, the authors compared 3 (three) electrodes, namely copper electrodes, aluminum electrodes and mixed iron electrodes which were implanted in 2 (two) different soil conditions, namely in swamp soil and solid clay. From the measurement results obtained data that the copper electrode is better than the aluminum electrode and the mixed iron in solid clay conditions, whereas in the wetland conditions, the three electrodes received very little measurement results between copper electrode, aluminum electrode and mixed iron electrode. Based on the standard grounding resistance value set in the PUIL where the earthing resistance and the whole grounding system shall be no more than 5 ohms so to obtain the value, the depth of the copper electrode under solid clay conditions shall be implanted deeper than the marshland conditions. From the results of the comparison at a depth of 80cm, the resistance value of the earthing copper electrode on solid clay is 952 ohm and in the swamp soil is 71.07 ohm, the Aluminum Electrode in solid clay is 995.5 ohm and swamp soil is 68.52 ohm and iron the mixture on clay is 1052 ohm and swamp soil 76.55 ohm.