Greek distribution box grounding method
26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. Next, we describe directional elements suitable to provide ground fault protection in solidly- and low-impedance grounded distribution systems. We then analyze the behavior of ungrounded systems under ground fault conditions and introduce a new ground directional element for these systems. Are You at Risk?There are several factors that make substation grounding absolutely necessary. Due to the rapid development of the distribution grid and extensive use of cables in some countries, the system-to-ground capacitive current has increased.
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