There are risks everywhere in life. As long as you come into contact with electricity, there is a possibility of electrocution. However, the electric power industry is also a relatively dangerous industry. The relevant rules and regulations are already very complete. As long as you abide by the rules and regulations, the risk level is relatively low. The key is not to be stupid and bold, not to know how to ask more questions, and not to make random moves.
Parts replaced by fan repairs will be dealt with as appropriate based on the residual value. It can be sold or disposed of on site. After the wind turbine is decommissioned, the actual condition of the unit needs to be evaluated to determine which parts can be reused and which parts need to be disposed of. For example, the blades require special treatment. At present, there is no fixed solution in the world, and it is all based on the actual situation.