All low-voltage fans with up to 500 kW of power undergo a running test and vibrometry testing. This test relates to standard ISO 14694 cat.bv-3 and a test report can be issued on customer request.
VIBRATION LIMITS FOR MONITORING IN SITU (ISO 14694:2003 Cat.BV-3)
Condition |
Fan mounted on rigid frame (Veff mm/s) |
Fan mounted on flexible frame (Veff mm/s) |
|---|---|---|
Start-up |
0 |
0 |
Normal Operation |
4.5 |
6.3 |
Alarm |
7.1 |
11.8 |
Immediate shutdown |
9 |
12.5 |
