| 摘要 |
The invention relates to a wind turbine rotor blade (5) comprising a blade tip (10) and a lightning protection system. The rotor blade includes at least one lightning receptor (7) at the surface of the blade in an external distance (Lex) from the distal end of the blade tip (10), and a lightning receptor base (11) inside the rotor blade (5) arranged at an first internal distance (Lj1) from the distal end of the blade tip (10). To avoid arching from the blade surface (18), to the lightning receptor base (11) if the lightning does not strike the receptor (7), the rotor blade further includes means (22a) for changing at least one electric property of the rotor blade (5) at the lightning receptor base (11), as compared to the electric properties of ambient air. These means are filling a part of the blade with e.g. polyurethane. The invention further relates to a method for manufacturing a wind turbine rotor blade (5). |
