Abstract: A system for treating a surface to be treated of a photovoltaic installation formed from one photovoltaic module or from a plurality of juxtaposed photovoltaic modules, the system including an emission source for emitting electromagnetic radiation, the emission source being configured to emit electromagnetic radiation, the system including: a device for moving the emission source, a control unit configured to control the emission source with a view to emitting the electromagnetic radiation for a determined exposure time with a given irradiance towards at least one portion of the surface to be treated, the control unit being configured to control the moving device so as to move the emission source with respect to the surface to be treated until the entire photovoltaic surface has been scanned.

Abstract: A device for cutting a wire piece, configured to move with respect to the wire piece, including: at least first and second rotary members rotating around respective first and second substantially parallel axes of rotation, the at least one first and second rotary members driving the wire substantially perpendicular to the first and second axes, the wire resting against external surfaces of each of the at least one first and second rotary members. At least one of the at least one first and second rotary members includes a lubrication mechanism of the wire to allow circulation of a lubricating liquid from the center thereof to an external surface thereof in contact with the wire, the lubrication mechanism including a lubrication liquid feed device, mounted on the axis of rotation of the at least one of the first and second rotary members, to supply the center thereof with lubrication liquid.