MIL-PRF-38039D
g. Dielectric test (see 4.5.3)
h. Electromagnetic interference test (see 4.5.5)
i. Altitude test (see 4.5.7.10)
j. Explosive atmosphere test (see 4.5.7.11)
k. Leakage 9immersion) test (see 4.5.7.12)
l. Structural test (see 4.5.8)
m. Life test (see 4.5.9)
n. Solar radiation (sunshine) test (control panel only) (see 4.5.7.13)
4.4 Test conditions. Unless otherwise specified in the test descriptions, all inspections
and tests shall be performed under the ambient conditions of pressure of 28 to 32 inches of
mercury, temperature of 25 ± 5°C, and a relative humidity of 80% or less. If conditions change
during a test, appropriate corrections shall be applied. Unless otherwise indicated in the test
methods, test sample temperature conditioning shall be at least one hour longer than that required
to reach thermal equilibrium.
4.4.1 Test requirements when performing environmental tests. The test articles shall
satisfy the visibility and legibility test (see 4.5.6.1) both before and after the required
environmental tests (see 4.5.7).
4.5 Tests.
4.5.1 Examination. The system shall be inspected to determine compliance with
materials, design, interface, fastening hardware, identification, and interchangeability
requirements as itemized in table I.
4.5.2 Input circuit response. Each input circuit shall be activated and the master
warning, master fire warning, and master caution indicators and the indicator display shall light.
The circuits shall be activated individually to determine that the master indicator light functions
for each circuit.
4.5.3 Dielectric strength. A potential of 500V rms commercial frequency shall be
applied between the connector pins and the case, at sea level pressure, for 60 seconds. The test
shall be repeated except the potential shall be 250V rms at a pressure equivalent to 50,000 feet.
Current flow shall not exceed 500 microamperes.
4.5.4 Power consumption. The system power consumption shall not exceed that
specified in the procurement document, and shall be measured under the following conditions:
a. All circuits activated at maximum rated voltage.
b. All circuits activated dimmed voltage.
c. Only circuits activated at dimmed voltage.
4.5.5 Electromagnetic interference test. The electromagnetic interference test shall be
conducted in accordance with MIL-STD-461.
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