In recent years, the rapid development of the economy has led to an acceleration in power grid construction, making transformers a common feature in various types of buildings. However, due to limited land resources, substations are frequently constructed in the basements of high-rise residential buildings. This has brought attention to the issue of transformer noise control. Although the noise levels from transformers may not seem significant, they can still impact human health and pose potential safety risks. Transformer noise pollution has quietly become a concern in residential areas, commercial centers, businesses, hospitals, schools, and other locations. So, how do we address this problem?
Transformer noise is influenced by both internal and external factors. Hank's Soundproofing focuses on equipment safety while primarily aiming to reduce noise by managing external elements.
Key influencing factors include:
1. Vibration generated by the transformer casing, fans, and other components.
2. Instability in equipment installation, amplifying operational vibration noise.
3. Acoustic issues resulting from theä¸åˆç†scale and structure of underground substations.
Characteristics of Transformer Noise:
The low-frequency noise emitted by transformers has strong penetration capabilities and slow attenuation, often traveling over 30 meters. This primarily impacts the indoor acoustic environment within buildings up to 1-5 floors above. Such noise can be annoying and, over time, may lead to symptoms like headaches and tinnitus.
Methods for Controlling Transformer Noise:
Through scientific analysis, Hank's Soundproofing aims to meet the standard of 35dB for "Limitation of Structure-borne and Impact Noise Emission" in Class 1 areas at night. Here are some proposed solutions:
1. Replace the standard doors and windows of the substation with soundproof ones.
2. Install vibration-damping mounts at each corner of the transformer base to minimize the transmission of vibrations through the floor.
3. Add a soft-contact copper bar at the connection between the busbar and the transformer.
To further enhance these measures, additional steps could involve using acoustic panels on the walls of the substation and ensuring proper insulation around the transformer itself. These efforts not only help mitigate noise but also contribute to the overall safety and longevity of the equipment. By addressing both structural and operational aspects, we can significantly reduce the impact of transformer noise on surrounding environments and ensure a quieter, healthier living space for everyone involved.
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