Abstract: This paper provides a description of the application of wireless EPDs to high risk tasks in PWR nuclear power plant during overhaul, ranging from washing and cleaning to removal and installation of steam generators nozzle dams, also with analyses made of remote real-time dose monitoring and its effectiveness. Actual application shows that the wireless EPDs can be used for the high radiation risk tasks in some complex working environment at nuclear power plants, to effectively control the doses to personnel and avoid the happening of over-dose events.

Key words: Dose monitoring, Wireless EPDs, High radiation risk