IEC 60352-7 pdf download.Solderless connections 1 Scope and object This part of IEC 60352 is applicable to spring-clamp connections made with stripped wire without further preparation: – solid conductors of 0,32 mm to 3,7 mm nominal diameter (0,08 mm 2 to 10 mm 2 cross- section), or – stranded conductors of 0,08 mm 2 to 10 mm 2 cross-section, or...