Taiwan Provincial Standard of the People's Republic of China
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CNS 3993-1981
Scope
This standard specifies the inspection of high-voltage AC starters (hereinafter referred to as distribution boxes) with rated frequencies of 50 Hz or 60 Hz and rated voltages of 3300 volts and 6600 volts.
CNS 3993-1981 history
1981CNS 3993-1981 Method of Test for High Voltage Alternating Current Starters