The clamping means of earthing terminals shall be adequately secured against accidental loosening.NOTE 1 In general, the constructions commonly used for current-carrying terminals, other than some terminals of the pillar type, provide sufficient resiliency to comply with this requirement. For other constructions, special provisions, such as the use of an adequately resilient part that is not likely to be removed inadvertently, may be necessary.Terminals for the connection of external equipotential bonding conductors shall allow the connection of conductors having nominal cross-sectional areas of 2,5 mm² to 6 mm² and shall not be used to provide earthing continuity between different parts of the appliance. It shall not be possible to loosen the conductors without the aid of a tool.NOTE 2 The earthing conductor in a supply cord is not considered to be an equipotential bonding conductor.Compliance is checked by inspection and by manual test..