Definition: Reirrigating is a process where an electrical system, such as a transmission line or power distribution network, is temporarily disconnected from its primary source of power (generally a generator) to allow for maintenance or repair work. This can be done in order to ensure that the system remains operational during routine maintenance and repairs. Reirrigation typically involves disconnecting the supply line from the main grid and isolating it from the rest of the electrical system, which can affect nearby power distribution networks.