A: No. That is likely IEC 60335 series. The number 60606 is not related to appliance safety.
: Guidelines for the neutral point of windings in star or zigzag connections. Iec 60606 Pdf
The most likely source of the "IEC 60606" query is a typographical or mnemonic error. The human brain often shuffles numbers. The standard most professionals are looking for is actually . Iec 60606 Pdf
Old habits die hard. Some senior engineers recall standards like "IEC 60269" (Low-voltage fuses). The sequence "60606" could be a transposition of "60269." Iec 60606 Pdf