Patent ID: 11873798
Assignee: SIEMENS GAMESA RENEWABLE ENERGY INNOVATION & TECHNOLOGY S.L.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 0:
1. A blade for a wind turbine comprising:
an ice formation prevention system having a heating means connected to power supply cables;
a lightning protection system including at least one lightning down conductor and configured to conduct lightning striking the blade to ground through the at least one lightning down conductor; and
surge protection devices that connect the ice formation prevention system with the lightning protection system ensuring an equipotentiality of both systems;
wherein the heating means comprise at least one first radiant element and at least one second radiant element arranged faced to each other around a leading edge of the blade, with the at least one first radiant element being connected to the power supply cables through respective connectors at respective connection points, and the at least one lightning down conductor is connected to each power supply cable at the respective connection points through a respective surge protection device, the at least one second radiant element being electrically connected to the at least one first radiant element so that the at least one second radiant element is electrically supplied only through the at least one first radiant element.