2.8.2
Voltage Drop Test
Measure ac voltage drop at output and input terminals of filter using the
method of MIL-F-15733. Make ac voltage measurements at rated voltage and
frequency at 25 percent, 50 percent, and 100 percent rated load.
2.8.3
Harmonic Distortion Test
Measure total harmonic distortion at the input and output terminals of the
filter when operating at 25 percent load, 50 percent load, and 100 percent
rated load with a unity power factor load. Make measurements using a
spectrum analyzer having a dynamic range of 70 dB or greater and a minimum
frequency range of 10 kHz to 1700 MHz.
2.8.4
Terminal Strength Test
Test standoff terminals and filter terminals with external threads in
accordance with method 211 of MIL-STD-202, Test Condition E.Determine
applied torque values from Table XIV of MIL-F-15733.
2.8.5
Temperature Rating Test
Perform temperature rating test in an environment having the test
conditions and reference conditions specified in MIL-STD-202.
2.8.5.1
Individual Filters
Test temperature rise in accordance with MIL-F-15733.
2.8.5.2
Enclosed Filters
Test filters provided in enclosures as a unit with the enclosures.
2.8.6
Current Rating and Overload Test
Test current rating and overload in accordance with MIL-F-15733.
2.8.7
RF Radiation Test
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NOTE: When installation of the filter unit inside
of the shielded enclosure is required, the power
input terminal compartment shall be RF tight instead
of the load terminal compartment; and the filters
shall be located in the load terminal compartment.
This arrangement is necessary to prevent radiated RF
energy within the shielded enclosure from inducing
RF energy in the power conductors between the
filters and the point where the conductors pass
through the shielded enclosure wall. To provide for
this arrangement, change the wording as necessary,
i.e., change the word "Load" to read "Power Input"
and change the words "Power Input" to read "Power
Output" or "Load," as appropriate.
**************************************************************************
Perform RF radiation test on the load terminal compartment of the filter
unit in accordance with the manufacturer's standard method of test.
SECTION 16280N
Page 13
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