TABLE 1B. (Cont.) - 15070N0019

TABLE 1B. Class II Vibration Isolator Types and Minimum Static Deflection (MSD, mm) for basements below grade and floor slabs on earth

TABLE 1B. (Cont.) - 15070N0020

15070N
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TABLE 1B

Class II Vibration Isolator Types and Minimum Static Deflection

(MSD, mm) for basements below grade and floor slabs on earth

Equipment

Type (Note (1))

MSD

Tubular Centrifugal

and Axial Fans

(Note (2))

Suspended

H with deflections specified for

centrifugal blowers

Floor Mounted

Arrangements 1 & 9

8.89

Utility Fans

(Note (2))

Suspended and

H with deflections specified for

centrifugal

Floor Mounted

8.89

High-Pressure Fans

HR recommended for minimizing

(Over 1494 Pa

undesirable thrust effects

Static Pressure)

and Other

Machines

Producing Thrust

(Note (2))

Internal Combustion

Engines and Engine

Driven Equip

750 rpm and over

25.40

Dimmer Banks and

Transformers

Up to 454 kg

6.35

8.89

Over 454 kg

25.40

NOTES:

Note (1) and Note (2) are same as for TABLE 1A.

TABLE 1B

Class II Vibration Isolator Types and Minimum Static Deflection

(MSD, inches) for basements below grade and floor slabs on earth

Equipment

Type (Note (1))

MSD

Absorption Refrigeration

0.25

Machines

0.35

SECTION 15070N

Page 19

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