The People’s Republic of China national standard
Rotating motor housing protection rating (IP code) GB/T4942. 1-2001
Classification of degrees of protection providedidt IEC60034-5: 1991
By enclosures of rotating electrical machines (IP code) instead of GB / T 4942.1-1985
1 Scope
This standard applies to rotating motor shell protection grade.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of the standard. At time of publication, the editions indicated were valid. All standards will be revised, the parties should use the standard criteria of the latest version of the following possibilities.
GB/T755-2000 fixed and rotary motor performance (idt IEC60034-1: 1996)
GB/T1993-1993 rotary motor cooling method (eqv IEC60034-6: 1991)