protectiveearth
Protective earth refers to the connection of exposed conductive parts of electrical equipment to the earth or a common grounding point. This is a crucial safety measure designed to prevent electric shock hazards. When a fault occurs, such as a live wire touching the metal casing of an appliance, the protective earth connection provides a low-resistance path for the current to flow to the ground. This rapid flow of current is detected by protective devices like fuses or circuit breakers, which then interrupt the power supply, thereby de-energizing the faulty equipment and making it safe.
Without a protective earth, the metal casing would become live at a dangerous voltage. If a person