Patent ID: 11965487
Assignee: VESTAS WIND SYSTEMS A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H  Y | IPC F  H

Claim 9:
10. A wind turbine blade, comprising:
an Electro-Thermal Heating element, the Electro-Thermal Heating element comprising:
a first layer formed of an electrically conductive resistive material;
two active busbars positioned at opposite ends of the first layer and configured for supplying electrical power to the first layer;
a first busbar disposed on the first layer between the two active busbars, the first busbar is spaced from both the two active busbars; and
a second layer formed of an electrically conductive resistive material, the second layer is connected to the first busbar and either a second busbar spaced from the first busbar or one of the two active busbars so that the second layer is electrically coupled with the first layer.