What does RCD stand for in electrical protection?

The term RCD stands for Residual Current Device. This device is crucial in electrical protection as it is designed to prevent electric shock and reduce the risk of electrical fires. An RCD works by monitoring the current flowing through live and neutral wires. If it detects any imbalance in the current, which may indicate leakage to the ground (potentially through a person), it quickly disconnects the power supply. This rapid action effectively protects people from electric shock and declares the system safe.

The significance of the RCD in residential and commercial electrical installations cannot be overstated, as it enhances safety by reducing the hazards associated with electrical faults. Understanding its function and importance is essential for anyone involved in electrical work or safety protocols.