This part of IEC 60884 applies to plugs and fixed or portable socket-outlets for a.c. only@ with or without earthing contact@ with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A@ intended for household and similar purposes@ either indoors or outdoors.The rated current is limited to 16 A maximum for fixed socket-outlets provided with screwless terminals.This standard does not cover requirements for flush mounting boxes; however@ it covers only those requirements for surface-type mounting boxes which are necessary for the tests on the socket-outlet.NOTE 1? General requirements for mounting boxes are given in IEC 60670.This standard also applies to plugs incorporated in cord sets@ to plugs and portable socket-outlets? incorporated in cord extension sets and to plugs and socket-outlets which are a?component of an appliance@ unless otherwise stated in the standard for the relevant appliance.This standard does not apply to-- plugs@ socket-outlets and couplers for industrial purposes;-- appliance couplers;-- plugs@ fixed and portable socket-outlets for ELV;NOTE 2? ELV values are specified in IEC 60364-4-41.-- fixed socket-outlets combined with fuses@ automatic switches@ etc.NOTE 3? Socket-outlets with pilot lights are allowed provided that pilot lights comply with the relevant standard@ if any.Plugs and fixed or portable socket-outlets complying with this standard are suitable for use at ambient temperatures not normally exceeding 25? C@ but occasionally reaching?? 35? C.NOTE 4? Socket-outlets complying with this standard are only suitable for incorporation in equipment in such a way and in such a place that it is unlikely that the surrounding temperature exceeds 35? C.In locations where special conditions prevail@ such as in ships@ vehicles and the like and in hazardous locations@ for example where explosions are liable to occur@ special constructions may be required.