MIL-C-81360(AS)
4.4.5
Equipment Failure - Should a failure occur during either the sampling,
reliability aasurance or special tests, the following action shall be taken:
(1) Determine the cause of failure.
(2) Determine if the failure is an isolated case or design defect.
(3) Submit to the procuring activity for approval, proposed corrective
action intended to reduce the possibility of the same failure(s)
occurring in future tests.
(4) Where practical, include a test in the individual test to check all
equipment for this requirement until reasonable assurance is obtained
that the defect has been satisfactorily corrected.
4.5
Life Test - The contractor shall furnish all samples and shall be re-
sponsible for accomplishing the life test, The test shall be of 300 hours duration and shall
be conducted on equipments that have passed the individual test. The life test shall be per-
formed under the conditions specified in 4.5.1. The life test sample shall be selected by
the government inspector in accordance with the following. (Equipments which have suc-
cessfully passed the initial production test, sampling tests, reliability tests, or special tests
may be selected for life tests. ) When reliability tests are conducted, the life test may be
omitted if, during the reliability tests, a quantity of equipments equal to, or more than, that
listed below receive at least 300 hours each of test time,
Quantity of Equipments
Quantity to Be Selected
for Life Test
Offered for Acceptance
First 25
1
Next 175
1
Next 300
1
1 for each additional 500
or fraction thereof
4.5.1
Test Conditions - The life test shall be conducted under the following
simulated service conditions:
Temperature
Normal room
Altitude
Normal ground (0 - 5000 ft)
Humidity
Room ambient
AC voltage
115 ±5 volts (at lowest applicable
frequency)
DC voltage
27.0 ±2.0 volts
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