Wind turbine rotor blade having an electrical heating arrangement and method of making the same

A wind turbine rotor blade comprising:

• a first rotor blade half shell made of fiber-reinforced plastics material;
• a second rotor blade half shell made of fiber-reinforced plastics material;
• said first and said second rotor blade half shells conjointly defining a blade root;
• a fiber-reinforced plastics material;
• a heating arrangement having a first heating element, a second heating element and a third heating element, a blade root end and electrical connections at said blade root end;
• each one of said first, second and third electrical heating elements having a blade root end and a blade tip end;
• said first electrical heating element being embedded in a plastics matrix simultaneously with reinforcement fibers of said first rotor blade half shell by curing a liquid plastics material during the production of said first rotor blade half shell;
• said second electrical heating being embedded in a plastics matrix simultaneously with reinforcement fibers of said second rotor blade half shell by curing a liquid plastics material during the production of said second rotor blade half shell;
• said third heating element being connected to said first and said second rotor blade half shells;
• said blade tip ends of said first, said second and said third electrical heating elements being interconnected in an electrically conductive manner;
• said heating arrangement further including first, second and third electrical connecting lines corresponding to respective ones of said first, second and third heating elements;
• and,
• the blade root ends of said first, said second and said third electrical heating element being connected to corresponding ones of said first, second and third electrical connecting lines.