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A disturbance in the groundhing system is caused by a disturbance current which is
flowed to the ground which will cause a difference in tension on the ground surface due
to high ground resistance. On rocky soils with ground resistance in excess of 200 ?-
meters it is very difficult to determine a suitable grounding system. The purpose of this
research is to analyze the design of an appropriate earthing system on narrow land on
rocky ground which will be used as a reference for selecting the grounding system at at
Kampus Unud Jimbaran feeders. The method used is to take measurements on rocky
soil then measure and determine the proper earthing design to use. The optimal results
obtained for the grounding system on narrow land on rocky soil is a grid grounding
system because it produces the lowest earthing resistance value in dry soil conditions
and wet soil conditions, namely 0.6269 ohms on dry soil and 0.4314 ohms on wet soil. has met the standard according to IEEE std 80-2013, which is <1 ohm with 16x16 rods
in an area of 4 m2.
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