metal removable screen / utility distribution network / protective device / connected electrical equipment / insulation monitoring device / residual current operated device / overcurrent protective devices / equipotential bonding network / residual-current devices / residual-current operating device / residual current operating device / metal enclosure / protective devices / live metal / electrical equipment / differential devices / residual current protective devices / manufacturing process / energy / / /
Position
live conductor / conductor / protective earthing conductor / General / Contents General / protective conductor at each level / protective conductor / /