Operation And Service; Noise Emission - ABB PT003924 Operation Manual

Operation Manual / Power2 340-H / Low-pressure stage
6 Operation and service / 6.1 Noise emission
6

Operation and service

6.1

Noise emission

WARNING
Noise hazards
Exposure to noise can harm the hearing system, impair health and the psy-
chological state and may lead to lack of attention and irritation.
When the engine is running, always wear ear protection.
u
Always wear ear protection if the sound pressure level exceeds 85 dB(A).
u
Wear ear protection.
The emission sound pressure level (A-weighted) is measured at a distance of 1 metre from
the low-pressure and high-pressure stage.
The highest value of the emission sound pressure level
near the compressor end (compressor casing, filter silencer, air suction branch).
The following prerequisites must be fulfilled with regard to the low-pressure and high-pres-
sure stage to observe this limit value:
¡
Air inlet system and piping fitted
¡
All standard, noise-reducing measures
¡ Bellows at the air outlet has been properly acoustically insulated by the enginebuilder
(see Fig. 18: Noise insulation, bellows →46)
¡
Bellows between radial air inlet and compressor casing of the high-pressure stage has
been acoustically insulated
The enginebuilder is also responsible for insulating other components such as the charge
air/scavenging air lines and the cooler.
1) Directive 2006/42/EC, 1.7.4.2 / u / Paragraphs 5 + 7:
A-weighted emission sound pressure level
2) The enginebuilder must provide acoustically equivalent measures in case of deviating in-
sulation versions
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1)
reaches a maximum of 105 dB(A)
2)
have been fitted
HZTL4053_EN Rev.F March 2022