Why is grounding important for metallic conduits?

Grounding is crucial for metallic conduits primarily to ensure electrical safety and mitigate risks associated with electrical shocks. When a metallic conduit is properly grounded, any fault currents that might occur due to damaged insulation, accidental contact with live wires, or external influences can safely be directed to the ground. This reduces the possibility of a person receiving an electric shock if they touch the conduit and helps protect the integrity of the electrical system.

Grounding also plays a vital role in reducing the risk of fire that can arise from electrical faults. If a fault were to occur in an ungrounded system, the excess current could potentially lead to overheating and sparking, resulting in fires. Therefore, by providing a safe path for excess current, grounding not only promotes personal safety but also enhances the overall protection of electrical installations.

While improving conductivity, addressing interference, and the necessity of grounding in all installations are important considerations, grounding's primary objective specifically pertains to safety and protection against electrical hazards.