Abstract: A method for repairing a wind turbine blade, wherein the wind turbine blade includes a first layer, a second layer, and an inner core layer between the first layer and the second layer, and the method includes: determining a damaged area of the inner core layer, sequentially removing portions of the second layer and the inner core layer corresponding to the damaged area, forming a repair through-hole in the second layer, and forming a damage removal hole in the inner core layer; applying an adhesive inside the damage removal hole, before arranging one or more repair core members side by side on the adhesive; wet/hand laying-up or bonding a prefabricated glass fiber reinforced plastic plate on a surface of the one or more repair core members in the repair through-hole; and maintaining vacuum pressure, while curing the adhesive at room temperature or by surface heating.

Abstract: A lightning protection apparatus for a wind generator blade, including a lightning arrester and a lightning arrester base. The lightning arrester includes a connecting portion, a lightning arresting portion, and a positioning portion, wherein the lightning arresting portion is configured to arrest a lightning, an external thread is formed on a surface of the connecting portion and configured to be connected to the lightning arrester base, and the positioning portion is disposed between the connecting portion and the lightning arresting portion, such that after the connecting portion is screwed into a threaded hole, the positioning portion can fit with a recess in the threaded hole in shape. The lightning arrester base is configured to be connected to the lightning arrester and lead out a lightning current received by the lightning arrester during lightning arresting, and includes an insulation layer and at least one the threaded hole.

Abstract: A lightning protection apparatus for a wind generator blade, including a lightning arrester and a lightning arrester base. The lightning arrester includes a connecting portion, a lightning arresting portion, and a positioning portion, wherein the lightning arresting portion is configured to arrest a lightning, an external thread is formed on a surface of the connecting portion and configured to be connected to the lightning arrester base, and the positioning portion is disposed between the connecting portion and the lightning arresting portion, such that after the connecting portion is screwed into a threaded hole, the positioning portion can fit with a recess in the threaded hole in shape. The lightning arrester base is configured to be connected to the lightning arrester and lead out a lightning current received by the lightning arrester during lightning arresting, and includes an insulation layer and at least one the threaded hole.