Grounding effect test of distribution box

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This Grounding Standard describes factors affecting the ground resistance and the method of measuring ground resistance of Distribution installations. Grounding is a mechanism to protect distribution equipment and people under normal operating conditions, abnormal operational (overcurrent and overvoltage) responses, and hazardous conditions such as shocks. 26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. In low-voltage systems – besides ad-hering to the requirements for discon-nection – equipotential bonding and protective equipotential bonding in.

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