Azur Energia carries out initial installation and periodic checks on all brands of interface relays installed on low-voltage power generation systems compliant with CEI 0-21, medium-voltage systems compliant with CEI 0-16, and general interface protections (SPG) with relay test boxes.This type of check must be carried out by a qualified technician who must go to the plant where the protection system is installed and, using appropriate instruments, must verify both the correct installation and that the measurement taken falls within the limits set by the Operating Regulations signed with the energy distributor. Azur Energia carries out these checks throughout the country.