Common duty cycles defined include , S2 (short-time) , S3 (intermittent periodic) , and others up to S9.
The standard specifies that a Class F motor with Class B temperature rise is acceptable (giving a safety margin). iec 60034-1 pdf free download
, which is an identical adoption of the IEC standard, is available for free download via Public.Resource.Org or archived on Archive.org Regional Adoptions (GOST) : The 2024 interstate version ( ГОСТ IEC 60034-1—2024 Common duty cycles defined include , S2 (short-time)
Section 6.5 specifically addresses insulation stress, requiring manufacturers to declare peak voltage and voltage gradient limits to ensure compatibility with fast-switching power electronics. Accessing the Document Common duty cycles defined include