Figure D
Airborne noise emitted by pumps with motors fitted by Grundfos
50 Hz
ISO3743-2 / ISO1680 50 Hz
Motor
[kW]
L
pA
[dB(A)]
0.37
50
0.55
50
0.75
50
1.1
52
1.5
54
2.2
54
3.0
55
4.0
62
5.5
60
7.5
60
11
60
15
60
18.5
60
22
66
30
67
37
67
45
67.5
55
71.5
75
74
90
73
110
74
132
73.5
160
77
200
76.5
60 Hz
ISO3743-2 / ISO1680 60 Hz
Motor
[kW]
L
pA
[dB(A)]
0.37
55
0.55
53
0.75
54
1.1
57
1.5
59
2.2
59
3.0
60
4.0
66
5.5
65
7.5
65
11
65
15
65
18.5
65
22
70
33.5
78
41.5
78
51
72
62
76
84
78
101
77.5
123
78.5
141
78
180
81.5
224
81.5
883
Appendix A
Summary of Contents for CRN 125-11
Page 2: ......
