GB/T 23312.7-2009
Enamelled round aluminium winding wire.Part 7:Polyester or polyesterimide overcoated with polyamide-imide enamelled round aluminium wire,class 200 (English Version)

Standard No.: GB/T 23312.7-2009
Language: Chinese, Available in English version
Release Date: 2009
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 23312.7-2009

Scope: This part of GB/T 23312 specifies the requirements for double-coated grade 200 enamelled round aluminum wire. The primer layer is based on polyester or polyester sub-acrylic resin, which can be modified if the chemical characteristics of the original resin are preserved and all requirements specified for enameled wire are met. The topcoat layer is based on polyamide resin. Class 200 indicates a thermal class, requiring a minimum temperature index of 200 and a thermal shock temperature of at least 220°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 diameter range of conductors stipulated in this part is: ——Class 1: 0.400mm and above and 3.150mm and below; ——Class 2: 0.400mm and above and 5.000mm and below. See GB/T 23312.1-2009 for the nominal diameter of conductors Chapter 4.

GB/T 23312.7-2009 Referenced Document

GB/T 23312.1-2009 Enamelled round aluminium winding wire.Part 1:General requirements

2009 GB/T 23312.7-2009 Enamelled round aluminium winding wire.Part 7:Polyester or polyesterimide overcoated with polyamide-imide enamelled round aluminium wire,class 200