Fences can play a role of safety isolation. For example, Japanese law stipulates that power stations with a capacity 

of more than 50KW must be equipped with fences; The combiner box is in danger of electric shock; The insurance cost 

is different whether there is a fence or not; Prevent accidents caused by children and animals. Fence cost is low; Not 

restricted by terrain; Easy installation; Maintenance free; It can be installed not only in flat areas, but also on terrain with 

a certain angle. It is widely used in ground photovoltaic projects, road isolation, landslides, etc.