GB/T 32524.1-2016 Acoustics—Determination of sound power level and directivity character of power capacitor unit using sound pressure—Part 1:Precision method for hemi-anechoic rooms

Scope

This part of GB/T 32524 specifies the method of determining the sound power level and directional characteristics of power capacitor units (hereinafter referred to as "capacitor units") in a semi-free field environment (semi-anechoic chamber) by measuring the sound pressure level on the measurement surface surrounding the capacitor units. The test frequency range of this part is the range covered by the 1/3 octave band with a center frequency of 100 Hz to 4,000 Hz. If necessary, the frequency range can be expanded or reduced, but the measurement environment should meet the requirements of the frequency range. This part is applicable to AC filter capacitors, DC filter capacitors, and parallel capacitors with a nominal voltage of 1 kV and above. Other power capacitors can refer to this part for implementation.

Development Information

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