IEC 60352-3-2020 SOLDERLESS CONNECTIONS – Part 3: Accessible insulation displacement (ID) connections – General requirements, test methods and practical guidance.
The manufacturer of accessible ID terminations or of a component (e.g. multipole connectors) using such terminations shall provide an instruction for the assembly of accessible ID connections.
Accessible ID connections shall be processed in a careful and workmanlike manner, in accordance with good current practice.
Annex A (informative) provides practical guidance and may constitute a benchmark for the assessment of workmanship.
NOTE Some industry sectors (e.g. automotive, aerospace, marine, nuclear, military) use workmanship standards which can be considered upon agreement between manufacturer and user.
5 Prerequisites for basic test schedule
Accessible ID connections which fulfil the following prerequisites, which are based on the experience by the industry, shall be assessed in accordance with the basic test schedule.
All prerequisites are essential at the same level of importance. Accessible ID connections, which do not comply with all these prerequisites but are covered by the scope of this stand- ard, shall be assessed in accordance with the full test schedule.
5.2 Prerequisites for accessible ID terminations
5.2.1 Accessible ID termination materials
Suitable grades of copper alloy, such as copper-tin (bronze), copper-zinc (brass), etc. shall be used.
If copper-zinc alloys are used, there should be consideration for corrosion effects caused by mechanical stresses in some environments.
5.2.2 Accessible ID termination dimensions
The quality of an ID connection depends on the dimensions of the accessible ID termination, particularly of its slot and beams, together with the characteristics of the materials used. The dimensions shall be chosen so as to be suitable for the wire or range of wires for which the accessible ID termination is designed. The suitability is verified by applying the test schedule given in Clauses 6 to 8.
5.2.3 Accessible ID termination surface finishes
The contact area of the accessible ID termination shall be plated with tin or with silver, gold, palladium or their alloys. The surface of the contact area shall be free of detrimental contami- nation or corrosion.
5.2.4 Accessible ID termination design features
Accessible ID terminations may be distinguished according to reusability conditions and according to a range of wire sizes that can be accommodated. This results in the following types:
– reusable ID terminations, designed to be connected more than once and designed for one specified nominal conductor diameter or cross-section;
– reusable ID terminations, designed to be connected more than once and designed for a specified range of conductor diameters or cross-sections;
– non-reusable ID terminations, designed to be connected once and designed for one speci- fied nominal conductor diameter or cross-section;
– non-reusable ID terminations, designed to be connected once and designed for a specified range of conductor diameters or cross-sections.
The edges of the beams shall be smooth and free of burrs to avoid unintentional damage to the conductor(s) or insulation.
5.3 Prerequisites for wires and conductors
5.3.1 Wires and conductors
5.3.1 .1 General
Wires with solid round conductors or stranded conductors with seven single strands according to IEC 60228 class 2 shall be used.
5.3.1 .2 Conductor materials
The conductor material shall be annealed copper. It shall have an elongation at break of not less than 1 0 %.IEC 60352-3 pdf download.