GB/T 22718-2008 (English Version) PDF

Standard No.: GB/T 22718-2008
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 22718-2008

Scope: This standard specifies the heat resistance evaluation method of the insulation structure of 3kV and above high-voltage motors. The heat resistance evaluation method stipulated in this standard is based on the relative comparison between the tested structure and the reference structure with actual operating experience under the same test conditions. This standard is applicable to the heat resistance evaluation of the insulation structure of the three-phase AC rotating electrical machines with a voltage level of 3kV and above.

GB/T 22718-2008 Referenced Document

GB/T 11021-2007 Electrical insulation.Thermal classification
GB/T 11026.4-1999 Guide for the determination of thermal endurance properties of electrical insulating materials-Part 4: Ageing ovens-Single-chamber ovens
GB/T 17948-2003 Functional Evaluation of Insulation systems for rotating electrical machines-General guidelines
GB/T 17948.3-2006 Functional evaluation of insulation systems for rotating electrical machines.Test procedures for form-wound windings.Thermal evaluation and classification of insulation systems used in machines up to and including 50 MVA and 15 kV
JB/T 1544-1999 Rapid test procedure for thermal endurance of electrical insulating impregnating varnishes and varnished fabrics-thermogravameric point slope (TPS)method
JB/T 9238-1999 Specification for industrial thermocouple assemblies

2008 GB/T 22718-2008 Thermal evaluation methods of insulation systems for high-voltage electrical machines