| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve lightning prevention effect by improving lightning capture probability and surely avoiding a blade from being directly struck by lightening. <P>SOLUTION: This system prevents lightning from striking wind power generation facility F provided with blades 3 provided on a top part of a tower 1 rotatably attached on a top part of a tower 1 via a nacelle 2 and rotated by wind power. A plurality of primary overhead ground wires 11 capturing lightning are provided above a route 13 (14) passing the highest point out of trajectories of tips 3a of the blades 3 to prevent lightning from striking the tip 3a of the blade 3 passing the route 13. Secondary overhead ground wire 12 corresponding to each primary overhead ground wire 11 is provided side by side below each primary overhead ground wire 11. The primary overhead ground wire 11 and the secondary overhead ground wire 12 corresponding each other are connected via a plurality of connecting rods 16 provided in a row with a predetermined interval. <P>COPYRIGHT: (C)2009,JPO&INPIT |
