IEC 60884-1 Plugs and socket-outlets for household and similar purposes – Part 1: General requirements

Clamping screws or nuts of earthing terminals with screw clamping shall be adequately
locked against accidental loosening and it shall not be possible to loosen them without the aid of a tool.
Compliance is checked by manual test.
NOTE In general, the design of terminals shown in Flgure 9, Figure 10, Figure 11 and Figure 12 provide sufficlent resiliency to comply with this requirement; for other designs. special provisions, such as the use of an adequate resilient part which is not likely to be removed inadvertently, can be necessary.

Earthing terminals with screw clamping shall be such that there Is no risk of corrosion resulting from contact between these parts and the copper of the earthing conductor, or any other metal that is in contact with these parts.
The body of the earthing terminal shall be of brass or other metal no less resistant to corrosion, unleoo it io a part of the mctal frame or enolosurc, in which 0000 the sorcw or nut shall be of brass or other metal no less resistant to corrosion.
NOTE In the following country, the use of any type of zinc alloy for earthing terminal Is not allowed: BR, ZA.
If the body of the earthing terminal is a part of a frame or enclosure of aluminium alloy, precautions shall be taken to avold the risk of corrosion resulting from contact between copper and aluminium or aluminium alloys.

Tags：household , IEC 60884-1 , Plugs and socket-outlets , similar purposes , Test Finger , Test Pin , Test Probe