This standard specifies the mechanical and electrical properties of hard aluminum wire with a nominal diameter range of 1.25 mm to 5.00 mm and a nominal equivalent diameter range of 2.00 mm to 6.00 mm for overhead stranded wire. Hard aluminum wires are divided into four resistance levels, denoted by L, L1, L2, and L3. The cross-sectional shapes are divided into two categories: circular lines and profile lines. This standard is applicable to hard aluminum wires used for overhead power transmission. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 3048.2-2007 Test Methods for Electrical Properties of Electric Wires and Cables: Part 2: Metal Material Resistivity Test (IEC60468; 1974, MOD) GB/T 4909.2-2009 Test Methods for Bare Wires Part 2: Dimensional Measurement GB/T 4909.3-2009 Test Methods for Bare Wires Part 3: Tensile Test GB/T 4909.7-2009 Test Methods for Bare Wires Part 7: Winding Test
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