And a successful example proves that the technique of online leak sealing has a prominent function in ensuring the long period safe operation and eliminating unexpected shutdown of power supply plant.

The quake and tsunami cut the supply of off-site power to the plant and diesel generators intended to provide back-up electricity to the cooling system.

At the same time, Japanese engineers were focused on restoring the power supply to the stricken power plant in an attempt to reactivate its cooling system.