Abstract: The invention relates to aspects of a method of registering lightning strikes in the blade of a wind turbine, use of such method, a system of exercising the method. The method according to the invention of registering lightning strikes involve that the method comprises that the lightning strike is captured in a receptor arranged in the blade (5) of the wind turbine, and the lightning current is conducted completely or partially through at least one electric resistor (10), thereby heating it, and that it is registered at least that the temperature of the resistor is or was at some point increased. The heating of the electric resistor, ie the increase in temperature, provides simple and reliable registration. This can be extended to also comprise measurement of the amount of energy contained in the lightning current in a very robust and hence very suitable manner for the task.

Abstract: The present invention relates to a connector box adapted to be at least partly embedded in a fiber-reinforced part of a wind turbine, where said connector box comprises a flexible base part and a sealing part. The sealing part seals off and protects at least one compartment between the sealing part and the base part during manufacture of said fiber-reinforced part, but can be partly removed after manufacture making said compartment accessible. The base part is adapted to fasten the connector box in the fiber-reinforced part by having a larger circumference near its bottom than near its top. Further, the invention relates to such a connector box fixating a part of an element in the compartment of the box and making a second part of the element accessible from the compartment after manufacture.

Abstract: The invention relates to aspects of a method of registering lightning strikes in the blade of a wind turbine, use of such method, a system of exercising the method. The method according to the invention of registering lightning strikes involve that the method comprises that the lightning strike is captured in a receptor arranged in the blade (5) of the wind turbine, and the lightning current is conducted completely or partially through at least one electric resistor (10), thereby heating it, and that it is registered at least that the temperature of the resistor is or was at some point increased. The heating of the electric resistor, ie the increase in temperature, provides simple and reliable registration. This can be extended to also comprise measurement of the amount of energy contained in the lightning current in a very robust and hence very suitable manner for the task.