EQUIPMENT MANUAL 251-16-1
251/251-16-1
Page 14
Table 2. Environmental Qualification Form
NOMENCLATURE: Passenger Speaker Amplifier_____________________________________________________
TYPE/MODEL/PART NO.: Model 251-[ ]
TSO NUMBER: TSO-C50c _______________________________
MANUFACTURER'S SPECIFICATION AND/OR OTHER APPLICABLE SPECIFICATION: dB Systems’__________
Document No. 251-16-1, Equipment Manual _________________________________________________________
MANUFACTURER: dB Systems, Inc. ______________________________________________________________
ADDRESS: 2847 152nd Avenue N.E., Redmond, Washington 98052 __________________________________
CONDITIONS
DO-160C
SECTION/
PARAGRAPH
DESCRIPTION OF CONDUCTED TESTS
Temperature and altitude
Low temperature
High temperature
In-flight loss of cooling
Altitude
Decompression
Overpressure
4.0
4.5.1
4.5.2
4.5.3
4.5.4
4.6.1
4.6.2
4.6.3
Equipment qualified to Category F2.
(see also temperature variation)
(see also temperature variation)
(see also temperature variation)
Equipment does not require special cooling
Qualified to +70,000 ft.
Equipment Category A2, except decompressed to
+55,000 ft.
Equipment qualified to Category A2
Temperature variation 5.0
Qualified to Category B; combined with 4.5.1, 4.5.2
& 4.5.3.
Humidity 6.0 Qualified to Category A requirements.
Operational shocks and
Crash safety
Operational shocks
Crash safety
7.0
7.2
7.3
Qualified without shock mounts per DO-160C,
paragraphs 7.2.1, 7.3.1, 7.3.2, & 7.3.2.2.
Vibration 8.0 Qualified without shock mounts to Category L,
except extended curve 150-2,000 Hz 3g pk.
Qualified without shock mounts to Category C. No
change in critical frequencies during tests.
Explosion proofness 9.0 Equipment identified as Category X, no test
required.
Waterproofness 10.0 Equipment identified as Category X, no test
required.
Fluids susceptibility 11.0 Equipment identified as Category X, no test
required.
Sand and dust 12.0 Equipment identified as Category X, no test
required.
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