GB/T 7095.5-2008
Enamelled rectangular copper winding wires.Part 5: Aromatic polyimide enamelled rectangular copper wire, class 240 (English Version)

Standard No.: GB/T 7095.5-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 7095.5-2008
Replace: GB/T 7095.5-1995

Scope: This part of GB/T 7095 specifies the requirements for 240¹⁾ single-coat enamelled flat copper wires based on aromatic polyimide resin. Class 240 indicates a thermal class, which requires a minimum temperature index of 240 and a thermal shock temperature of at least 260°C. The Celsius temperature corresponding to the temperature index is not the recommended temperature for magnet wire use, because it depends on many factors including the type of equipment used. The nominal size range of conductors applicable to this standard is: ——Wide side size: minimum 2.00mm, maximum 16.00mm; ——Narrow side size: minimum 0.80mm, maximum 5.60mm. This part covers flat enamelled copper wires of grade 1 and grade 2 lacquer wax thickness, and applies to the entire specification range of conductors. See GB.T 7095.1-2008 for the combination of wide side size and narrow side size and width/narrow ratio.

GB/T 7095.5-2008 Referenced Document

GB/T 7095.1-2008 Enamelled rectangular copper winding wires.Part 1:General requirements

2008 GB/T 7095.5-2008 Enamelled rectangular copper winding wires.Part 5: Aromatic polyimide enamelled rectangular copper wire, class 240
1995 GB/T 7095.5-1995 Enamelled rectangular wires. Part 5--Polyimide enamelled rectangular copper wires, class 220