An 800kv transformer installed in a residential building causes severe noise interference; seek a solution
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The installation of an 800kv transformer inside a residential building causes severe noise interference; what are the solutions? The actual installation location is on the basement floor –1, where the noise level in the transformer room reaches 70 dB, while it rises to 40 dB in the upper floors. What regulatory requirements are met by installing a transformer inside a residential building?
GB50118-2010 Code for Acoustic Design of Civil Buildings – It seems that for ordinary civil buildings, a sound level of no more than 37 dB at night is sufficient; by adding additional sound insulation measures, the required standard can be met.
It’s fine to install this thing on the first basement floor, but the first floor is not meant for living; you should be on the second floor or above. And yet there’s such loud noise?
Low-frequency noise cannot be addressed by ordinary concrete structures at all; frequencies below 200Hz simply cannot be blocked.
Interior decoration uses sound-absorbing cotton panels for walls and ceilings.
First, address the transformer vibration issue, then consider noise isolation.
It must be caused by resonance with the foundation
Vibration and noise are not the same thing; adding rubber pads to the base of the transformer can prevent vibration, while noise can be addressed through physical methods, such as using sound-absorbing materials for the walls and ceiling in the power distribution room.