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Describe how the metal case of an electrical appliance is connected to earth
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Describe how the metal case of an electrical appliance is connected to earth

User Shivang
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7 votes

This happens through the connection cord, that has 3 wires: 2 wires are used for power supply. The third wire is used to 'ground' the metal case, by connecting it to a special pin from the wall socket. The eletrical installation of the building connects all these ground pins to earth.

User Cadrick Loh
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2 votes
Anything that is medal is connected to earth
User Ryan Erwin
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5.7k points
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