T/SOECC 008.3-2023 Micro-fine bimetallic composite conductor - Part 3: Micro-fine copper-clad aluminum-steel wire

Scope

Main technical content: Fine Double Metal Composite Conductors Part 3: Fine Copper-Clad Steel Round Wires 1 Scope This part of the standard specifies the technical requirements, test and inspection rules, etc. for fine copper-clad steel round wires with a specification range of 0.030mm to 0.090mm. This standard applies to fine copper-clad steel round wires. These copper-clad steel wires are used in high-performance coaxial high-speed high-frequency cables, and can also be used for other purposes. 2 Normative Reference Documents The following documents are essential for the application of this document. For dated reference documents, only the version dated is applicable to this document. For undated reference documents, the latest version (including all amendment sheets) is applicable to this document. GB/T 3048.2-2007 "Electrical Performance Test Methods for Wires and Cables" Part 2: Resistivity Test of Metal Materials GB/T 4909.2-2009 "Test Methods for Bare Wires" Part 2: Dimension Measurement GB/T 4909.3-2009 "Test Methods for Bare Wires" Part 3: Tensile Test T/SOECC 008.1-2023 "Fine Double Metal Composite Conductors" Part 1: General Provisions 3 Specification Range The model expression method for fine aluminum-clad round wires is detailed in Chapter 4 of T/SOECC 008.1-2023. The model and specification range of fine aluminum-clad round wires shall comply with Table 1. Table 1 Model and Specification Name Material Type Product Category Specification Range Fine Aluminum-Clad Round Wires CCS21A, CCS21H 25A, 25H 30A, 30H 40A, 40H 0.030mm~0.090mm 4 Technical Requirements 4.1 Appearance The surface quality of fine aluminum-clad round wires shall comply with the provisions of Article 5.1 of T/SOECC 008.1-2023. 4.2 Diameter and Deviation The diameter of fine aluminum-clad round wires shall comply with the provisions of Article 5.2 of T/SOECC 008.1-2023. 4.3 DC Resistivity The DC resistivity of fine alum

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