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The third characteristic is the short circuit protection, which is intended to protect against heavy faults maybe in thousands of amps caused by short circuit faults.Circuit breaker
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Neutral is a return path for current, which always carries current in normal condition. Earth is a low resistance path for leakage current. It carries current only during fault conditions.Earthing is for safety purposes to discharge the fault current to the earth. Touching metals parts are earthed to prevent electric shock if any fault contact with the phase or insulation breakdown occurs.E L E C T R I C I A N (SEMESTER PATTERN) UNDER CRAFTSMEN ...
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