What does CBs provide in the context of electrical isolation?

In the context of electrical isolation, circuit breakers (CBs) are designed to provide temporary isolation. This functionality is crucial for maintenance and safety purposes. When a circuit breaker trips, it interrupts the current flow, creating a safe environment for technicians to work on electrical systems without the risk of electric shock or equipment damage.

Temporary isolation allows for quick and safe access to circuits while still permitting normal operation of other circuits in the system. This flexibility is essential in many applications, particularly in industrial and commercial environments where downtime must be minimized while ensuring the safety of personnel.

Other options like permanent disconnection or constant power supply do not align with the role of circuit breakers in providing a temporary state where systems can be serviced safely, without maintaining a permanent shutdown or continuing power flow. Enhanced connectivity does not relate to the isolation functionality of circuit breakers.