NEN 10027-4:1986被替代
Letter Symbols To Be Used In Electrical Technology - Part 4: Symbols For Quantities To Be Used For Rotating Electrical Machines
出版：Nederlands Normalisatie Instituut
专家解读视频
Includes a large number of letter symbols for quantities related to rotating electrical machines. Concerns dimensional characteristics as well as performance under differing operating conditions.
IEC 60027-4 Ed. 2.0 - Identical
HD 245.4:1987 - Identical
IEC 274 - Identical
HD 245.4 : 200S1 - Identical
IEC 60027-4 : 2.0 - Identical
IEC 274 : 1968 - Identical
HD 245.4 : 200S1 - Identical
