Data centres are large-scale facilities designed specifically to house computer systems and related components which stores and processes vast amounts of data as well as to distributing and enabling access to the data resources.
In 2022, it was estimated that 1-1.3% of global electricity demand was consumed by data centres. Due to increased demand for data to facilitate the evolving digital services, particularly for Artificial Intelligence systems, data centres are becoming crucial to global digital infrastructure and are being built at an increasing rate. The IEA projects that the electricity requirements for data centres could double between 2022 and 2026.
The noise output within data centres is often overlooked. AI servers are especially loud and often create unfavourable working conditions in the server rooms/data halls. One such server is the Nvidea DGX H100 system. The associated datasheet indicates a sound power noise level of Lw 97 to 99 dB(A) depending on temperature – this is incredibly loud!
In the UK, employers are obligated to protect their employees from noise exposure within the workplace under the Control of Noise at Work Regulations (2005). The Noise at Work Regulations define exposure limit and action values relating to average sound exposure and peak sound pressure:
| Descriptor | Exposure Value | Action to be taken | |
| Below Lower Exposure Action Value |
Under 80 dB(A) (LEP,d) | Under LCpeak 135 dB | For a noise exposure level under the Lower Exposure Action Level there are no requirements to provide hearing protection |
| Lower Exposure Action Value | 80 dB(A) (LEP,d) | LCpeak 135 dB | For a noise exposure level at or above the Lower Exposure Action Level, hearing protection must be made available to employees |
| Upper Exposure Action Value | 85 dB(A) (LEP,d) | LCpeak 137 dB | For a noise exposure level at or above the Upper Exposure Action Level, hearing protection is to be worn by all exposed employees without exception |
| Exposure Limit Value | 87 dB(A) (LEP,d) | LCpeak 140 dB | This level of exposure should not be exceeded and may take attenuation from hearing protection into account |
These exposure limits and action values are low relative to the sound power of the Nvidea DGX H100 servers. Noise at work assessments consider both the noise levels to which an operator is exposed and the duration of the exposure, therefore, staff exposed to noise from the Nvidea DGX H100, or similar servers, must limit their exposure and should wear appropriate hearing protection.
At Clement Acoustics, we offer high-quality noise at work assessments. Our consultants will attend site to undertake manual measurements of employee noise exposure levels. Liaison with employers is an important step in the general assessment, as precise information helps us to formulate an overall ‘noise-exposure scenario’ relating the measured noise levels with the actual working times of staff.
Noise measurement data collected during our site visit, in parallel with the information about work patterns, helps us to construct a realistic noise exposure scenario for all employees.
We then produce a detailed noise at work assessment in accordance with the Control of Noise at Work Regulations (2005) describing our survey methodology, data analysis and final outcomes. If the results demonstrate non-compliance with noise exposure limits as set out in the Control of Noise at Work Regulations: 2005, practical solutions will be suggested for the protection of employees.
Book your Noise at Work Assessment with Clement Acoustics
If you require a Noise at Work Assessment in London, Manchester, or anywhere else in the UK, or abroad, our fully trained and experienced acoustic consultants are available to provide high-quality, expert service, using state-of-the-art equipment and processes.
Our assessments will accurately predict noise exposure levels for all employees and suggest effective mitigation measures while adhering to all relevant standards and regulations.
To learn more about what we do, look at examples of our recent work and speak to one of our team on 0203 475 2280 (South), 0161 850 2280 (North), or email info@clementacoustics.co.uk. We look forward to hearing from you.
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If you’re apart of a large infrastructure project, Clement Acoustics are experts in assisting with the noise and vibration design. Contact Clement Acoustics today to discuss your project.