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An important step when preparing for a Tesla Wall Connector installation is ensuring that GFCI (ground fault circuit interrupter) protection is installed near the location of the charger installation. This is especially important if the charger will be installed outdoors as it will help protect against potential harm from dangerous ground currents caused by wet weather conditions or other external factors. Additionally, all wiring should be rated properly based on its amperage requirements; otherwise there is an increased risk of fire due to overheating wires.