The class defines the level of protection applied. In addition to the specific standards, it is also essential to comply with the safety standards for electrical installations (IEC 60364-X series of standards) for the selection and installation of equipment, the protection of people, and the safety and security of the installations. Likewise, all live products (servers, switches, etc.) incorporated in the racks must comply with standard IEC 60950 on the safety of information technology equipment, to which reference must be made.