) of electrical machines and sets maximum permissible limits for airborne noise. iTeh Standards Target Hardware

: It does not apply to traction machines or to machines with a shaft power less than or equal to 150 kW, which are covered under other standards.

Noise and Vibration Monitoring for Premium Efficiency IE3 Motors : Available on ResearchGate

Noise pollution is a significant concern in modern industries, as excessive noise can lead to hearing loss, decreased productivity, and increased stress levels among workers. IEC 60034-9 plays a crucial role in reducing noise pollution by establishing limits for the noise levels of rotating electrical machines.

: Introduced Grade A (standard) and Grade B (restrictive) to align with both IEC and NEMA requirements. iTeh Standards Free Download & Accessibility