Patent Number: 
Section: claims

1. A reactor vessel handling method comprising the steps of removing a polar crane mounted on an annular rail in a reactor containment vessel of a pressurized water reactor and having a girder and a trolley, and then carrying out a reactor vessel through an opening provided in a top portion of said reactor containment vessel. 2. A reactor vessel handling method according to  claim 1 , wherein said reactor vessel is carried out together with core internals. claim 1 3. A reactor vessel handling method according to  claim 1 , wherein said reactor vessel is carried out in a state in which a radiation shield case is combined with said reactor vessel. claim 1 4. A reactor vessel handling method according to  claim 1 , wherein carrying-out of said reactor vessel or carrying-in of said new reactor vessel is performed using a self-propelled heavy-duty crane. claim 1 5. A reactor vessel handling method comprising the steps of removing a polar crane mounted on an annular rail in a reactor containment vessel of a pressurized water reactor and having a girder and a trolley, and carrying out a reactor vessel through an opening provided in a top portion of said reactor containment vessel; and then carrying in a new reactor vessel to a predetermined position within said reactor containment vessel through said opening. 6. A reactor vessel handling method comprising the steps of, in a state in which a polar crane mounted on an annular rail in a reactor containment vessel of a pressurized water reactor and having a girder and a trolley, is removed, carrying in a new reactor vessel to a predetermined position within said reactor containment vessel through an opening provided in a top portion of said reactor containment vessel. 7. A reactor vessel handling method according to  claim 6 , wherein after carrying in said new reactor vessel, said polar crane is restored to an original state. claim 6