This part of IEC 60352 is applicable to spring clamp connections made with stripped wire of the following types and sizes according to IEC 60228:2023 or IEC 60189-3, without further preparation (later described unprepared ): solid conductors (e.g. class 1 of IEC 60228:2023) of 0,32 mm to 3,7 mm nominal diameter (0,08 mm2 to 10 mm2 cross-section), or stranded conductors (e.g. class 2 of IEC 60228:2023) of 0,08 mm2 to 10 mm2 cross-section, or flexible conductors (e.g. class 5 or 6 of IEC 60228:2023) of 0,08 mm2 to 10 mm2 cross222section, for use in electrical and electronic equipment and components. Information on materials and data from industrial experience is included in addition to the test procedures to provide electrically stable connections under prescribed environmental conditions. The object of this document is to determine the suitability of spring clamp connections under specified mechanical, electrical and atmospheric conditions. NOTE IEC Guide 109 advocates the need to minimize the impact of a product on the natural environment throughout the product life cycle. It is understood that some of the materials permitted in this document may have a negative environmental impact. As technological advances lead to acceptable alternatives for these materials, they will be eliminated from this document.