Fig. D
Airborne noise emitted by pumps with motors fitted by Grundfos
50 Hz
Motor
[kW]
[dB(A)]
0.37
0.55
0.75
1.1
1.5
2.2
3.0
4.0
5.5
7.5
11
15
18.5
22
30
37
45
55
75
Fig. E
tm
(°C)
190
180
170
160
150
140
130
120
110
100
60 Hz
L
L
pA
pA
[dB(A)]
50
55
50
53
50
54
52
57
54
59
54
59
55
60
62
66
60
65
60
65
60
65
60
65
60
65
66
70
71
75
71
75
71
75
71
75
73
77
Hv
(m)
126
100
79
62
45
40
35
30
25
20
15
12
10
8,0
90
6,0
5,0
80
4,0
70
3,0
60
2,0
1,5
50
1,0
0,8
40
0,6
30
0,4
0,3
20
0,2
10
0,1
0
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