A wind turbine blade, and a method of reinforcing a wind turbine blade

A wind turbine blade, comprising:

• a shell having a section with an aerodynamic profile with a trailing part including a trailing edge formed by a first shell part and a second shell part both extending from the trailing edge in mutual divergent directions;
• at least one elongated reinforcing member is connected inside the shell for increasing the strength of the blade, each of the at least one elongated reinforcing member having a first end and a second end and extending in a longitudinal direction between the first end being connected to the first part of the shell, and the second end being connected to the second part of the shell and thereby preventing deformation of the trailing part of the shell;
• and
• an overload protection device, wherein
• the elongated reinforcing member includes an elongated element extending in the longitudinal direction between the first and the second end of the elongated reinforcing member,
• at least one end of the elongated element is connected to the overload protection device, and
• each of the elongated reinforcing member includes a flexible string prohibiting only that the distance between the first shell part and the second shell part increases.