PRODUCT INFORMATION
INDEX
DATE
Dep. 2
IC-G-D-00-042e E
March 2015
SOUND PRESSURE LEVEL IN GAS ENGINES
3/3
5. NOISE EMISSION AT 1800 RPM
The following table shows the
sound pressure
distribution in octave frequency bands and the total sound level
with the engine running continuously at
1800 rpm and at 100% power.
F/SFGLD/SFGM
ENGINES
180 240 360 480 560
LpA IN FREQUENCY
BANDS (
H
z)
125
250
500
1000
2000
4000
--
76
88
91
87
83
70
86
84
89
87
83
--
74
90
85
87
82
70
84
84
88
89
83
73
87
85
87
91
86
LpA,
dB(A)
94 94 93 93 95
HGM
ENGINES
240 420 560
LpA IN FREQUENCY
BANDS (
H
z)
125
250
500
1000
2000
4000
67
77
80
88
91
87
--
74
88
83
90
87
70
84
82
86
92
88
LpA,
dB(A)
94 94 95
Notes
-
Sound power levels obtained as per the
ISO 9614-2
standard.
-
Sound pressure levels measured at 1 m from the engine, calculated as per the
UNE-EN ISO-11203:1996
standard.
-
The uncertainty of the results is for class 3 determinations with a maximum standard deviation of
=
4
dB(A)
.
1.19
O&M_2.002211.810_A_10_2016
