A Preliminary Study on Emission Limits of Substation Noise Based on Equivalent Annoyance
- DOI
- 10.2991/978-94-6463-606-2_42How to use a DOI?
- Keywords
- substation noise; sound pressure level in octave bands; emission limits; mean perceived annoyance; noise criteria curves
- Abstract
Substation noise disturbs residents despite satisfying emission standards because the impact of its low-frequency components is underestimated by the commonly used A-weighted equivalent continuous sound pressure level (LAeq). To optimize the control indicators and emission limits of substation noise, this study conducted listening tests of noise perceived annoyance (Am) according to GB/T 42473–2023 of China. Based on the annoyance ratings of 148 noise samples from 110 kV–1000 kV substations self-reported by 280subjects, fitting curves between LAeq and Am for substations noise of different voltage levels were established. Results indicated the necessity of formulating noise emission limits for 500 kV–1000 kV substations and 110 kV–220 kV substations respectively because of the significant difference of Am at the same LAeq. On the basis of different control targets of Am, a new limit of LAeq for two groups of substations above was derived, and corresponding limits of sound pressure level at each 1/1 octave band within 31.5 Hz–500 Hz were proposed based on noise criteria curves (NC curves). Results showed that under the control target of Am ≤ 6, the limit of LAeq for boundary noise from 110 kV–220 kV substations was 5.9 dBA higher than that from 500 kV–1000 kV substations, and the limits of sound pressure level at five 1/1 octave bands from the former were 4.6 dBA higher than those from the latter on average. Among 500 kV–1000 kV substations boundary noise samples satisfying the suggested limit of LAeq, 4.7% of samples didn’t simultaneously satisfy the limits of sound pressure levels at five 1/1 octave bands. To evaluate the influence of low-frequency noise from substations effectively, it is recommended to use LAeq and sound pressure levels at each 1/1 octave band within 31.5 Hz–500 Hz, corresponding to the condition when Am = 6, as emission limits for noise at the boundaries of substations.
- Copyright
- © 2024 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - Xingwang Chen AU - Qi Wang AU - Wen Xue AU - Wenchao Yuan AU - Yuhua Chen AU - Guoqing Di PY - 2024 DA - 2024/12/24 TI - A Preliminary Study on Emission Limits of Substation Noise Based on Equivalent Annoyance BT - Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024) PB - Atlantis Press SP - 412 EP - 421 SN - 2352-5401 UR - https://doi.org/10.2991/978-94-6463-606-2_42 DO - 10.2991/978-94-6463-606-2_42 ID - Chen2024 ER -