This reference standard defines appropriate fan balance quality and operating vibration levels to those who specify, manufacture, use, and maintain fan equipment.


Timothy Matthys on 2023-10-25 14:06:00

Section/Figure/Table No.: 204-20

Type of Comment: Technical (substantive)

Comment (justification):
Overall vibration for in-situ test. The alarm under BV-3 category with RMS is the same for rigidly and flexible mounting. 0.28 in/sec RMS, which is also the BV-4 category alarm for flexible mounting.

Proposed Change:
replace the alarm level on BV-3 flexible mounted from 0.28 in/sec RMS to 0.45 in/sec RMS.

Armin Hauer on 2020-12-01 22:50:00

Section/Figure/Table No.: general

Type of Comment: Editorial

Comment (justification):
"Weight" is mentioned in 4 places throughout this standard. We mean "mass" in each case.

Proposed Change:
replace "weight" by "mass" 4 times

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