2.5.5
Temperature Sensors
Each engine shall be equipped with coolant temperature sensors.
Temperature sensors shall provide signals for pre-high and high indication
and alarms.
2.6
SOUND LIMITATIONS
**************************************************************************
NOTE: The designer must perform an analysis in
accordance with TM 5-805-4 NOISE AND VIBRATION
CONTROL and TM 5-805-9 POWER PLANT ACOUSTICS. The
designer must consider air intake, exhaust, and
diesel generator casing noise. The designer must
also coordinate with the architect for proper
material selections for the sound transmittance
characteristics of the mechanical equipment room and
adjacent areas. The designer should consider sound
within the equipment room, adjacent areas and
building exterior. Acceptable sound levels will
vary depending on the function of the space. As a
minimum the design should comply with the following
OSHA safety requirements; however, more stringent
sound restrictions may be required to met the
functional requirements of the occupied spaces.
Maximum Acceptable
(Hz)
Sound Level
(Decibels)
Industrial
Residential
20-75
87
81
75-150
77
71
150-300
70
64
300-600
64
58
600-1,200
61
55
1,200-2,400
60
54
2,400-4,800
60
54
4,800-10 kHz
62
56
Typically, the diesel generator manufacturer can
provide information concerning the noise generated
by the diesel generator in a free field environment.
The manufacturer does not have control over any
other building parameters or additional mechanical
equipment noise. Therefore the designer should
indicate the required sound limits for each of the
indicated octave bands for the sound pressure level
of the diesel generator set operating at 100% load
SECTION 16264A
Page 37