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Electricity works same in all nations. Does not matter if grounding is done TN, TN-C, TT, etc. British create confusion by describing both earth ground and safety ground as "earth". Those grounds are electrically different. Shocks can occur when voltage of the earth ground (called earth in...

Extension cord must not connect to earth ground. That would be a code violation. Extension cord, other appliances, and those shears can only connect to safety ground. That to protect human life. Safety ground must connect to a bus bar in the main breaker box. (No such connection must exist...

Eliminate that protector that is not doing (and does not claim in its spec numbers) to do anything useful. Something completely different, unfortunately called a surge protector, would be effective because it connects low impedance (ie less than 10 feet) to earth ground. It is necessary even...

Currents are flowing thrown the ground. Ignore magic box solutions from the many without basic electrical knowledge. There exists a voltage diference between the safety ground and earth ground. That must never exist if the main breaker box is properly safety grounded and properly earth...