This standard specifies the product quality classification requirements for single-phase permanent magnet low-speed synchronous motors. This standard is applicable to the product quality classification of single-phase permanent magnet low-speed synchronous motors. Other specifications and varieties not included can be evaluated with reference to this standard. This standard only gives the main technical indicators of each quality level and must be used together with SJ 2670 and related special technical conditions.
SJ/T 9559.8-1993 history
1993SJ/T 9559.8-1993 Low speed permanent magnet synchronous motors--Quality grading standard