This part of IEC 60352 covers ultrasonically welded connections and includes requirements, tests and practical guidance information.

This document covers ultrasonically welded connections made with stranded or flexible wires (class 2, 5 or 6 per IEC 60228) of copper or copper alloy, as well as of aluminium or aluminium alloy.

These welded metal-to-metal connections shall employ wires with cross-sectional area of 0,08 mm² to 160 mm² and shall not exceed a total cross-sectional area, in case of wire bundle, of 200 mm².

For aluminium or aluminium alloy wires, the minimum required cross-sectional area is 2,5 mm².

Additionally, information on materials, data from industrial experience and test procedures are included to ensure electrically stable connections under prescribed environmental conditions.

Lastly, this document aims to achieve comparable results when using ultrasonic welding equipment with similar performance and specifications as specified by the termination manufacturer.