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Equipment Sound Power: transformer dry medium
Equipment sound power levels (Lw) by octave band for HVAC and mechanical equipment, used in acoustic analysis per ASHRAE Applications Handbook
| equipment type | Lw 125Hz (dB) | Lw 1kHz (dB) | Lw 250Hz (dB) | Lw 2kHz (dB) | Lw 4kHz (dB) | Lw 500Hz (dB) | Lw 63Hz (dB) | Lw 8kHz (dB) | Lw dBA (dBA) | capacity range | equipment description | location | standard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transformer dry medium | 58 | 50 | 56 | 46 | 42 | 53 | 60 | 37 | 55 | 75-500 kVA | Medium dry-type transformer (75-500 kVA) | electrical room | ASHRAE Applications Handbook 2023 Ch.49 |
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