Yes, it is strongly recommended to install Earth Leakage Circuit Breakers (ELCBs) or Ground Fault Circuit Interrupters (GFCIs) in electrical circuits, especially in locations where electrical safety is paramount. These devices are crucial for protecting against electric shock and preventing electrical fires caused by ground faults or leakage currents. ELCBs provide an added layer of safety by rapidly disconnecting power when such faults occur, minimizing the risk of harm to individuals and property. Their installation is a fundamental safety measure and is often mandated by electrical codes and regulations in many regions.