scope:

This European Standard specifies minimum requirements for earthing networks and connections (bonds) in buildings in which information technology equipment is intended to be installed to protect that equipment and interconnecting cabling from electrical hazards. Additionally this European Standard specifies requirements and provides recommendations for earthing networks and connections (bonds) in order for the information technology installation to achieve a) reliable signal reference, b) adequate immunity from electromagnetic interference carried by the earthing network. The requirements of this European Standard are applicable to all types of buildings ranging from residential to large commercial and industrial premises. Operator buildings are addressed by ETSI EN 300 253. This European standard specifies an earthing and bonding configuration that is appropriate to specific mains and other power supply distribution systems.