DSH 543AA Representative test Voltage for induction motor-compressors

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DSH 543AA ( b: b: B& {! J

Representative test Voltage for induction motor-compressors $ X0 `# a; u. x) Y. |, D

4.8.1(3rd)/5.8.1(4th)

60335-1(ed.3) & 60335-1(ed.4)

Question:
For locked rotor testing of induction motors, is testing at 50 Hz considered more severe than 60 Hz.
, ~0 O$ d' Y" ttesting, so that locked rotor testing at 50 Hz can be considered representative of testing at 60 Hz?
Proposal (if any):
/ J1 E" ]7 ^0 Z9 Y. LFor induction motors including motor-compressors rated 50 and 60 Hz, with the same rated
6 ?6 z8 P6 f* j( V( k' K% n' L% bvoltage(s) at each frequency, locked rotor testing at 50 Hz is considered more unfavorable.
For induction motors including motor-compressors rated 50 and 60 Hz, locked rotor testing at
50 Hz, at the highest rated voltage(s) is considered to be the more unfavorable condition. For
induction motors including motor-compressors rated 60 Hz, locked rotor testing at 50 Hz and
rated voltage(s) is considered more unfavorable.