MIL-DTL-21604F
4.8.11 Vibration (see 3.15). Switches shall be tested in accordance with MIL-STD-167-1, type I. The following
details and exceptions shall apply:
a.
Test and measurements prior to vibration: Not applicable.
b.
Method of mounting: Switches shall be rigidly mounted by their normal mounting means. The mounting
fixture shall be free from resonance over the test frequency range. Rear support shall be provided for style
JL switches having 6 or more decks; for style JK switches having 11 or more decks; and for all other
switches having 20 or more decks.
c.
Direction of motion: One of the directions of vibration shall be a plane perpendicular to the longitudinal axis
of the switch.
Electrical test conditions: The test circuit shall be in accordance with method 310 of MIL-STD-202, and shall
d.
consist of one pair of closed mated contacts on each section. At the option of the manufacturer, contacts
may be wired in series.
e.
Test measurements during vibration: As specified in 4.8.11d.
f.
Measurements after vibration: Not applicable.
g.
Examination after test: Switches shall be examined for change in shaft position, and evidence of broken,
loose, deformed, or displaced parts.
4.8.12 High-impact shock (see 3.16). Switches shall be tested in accordance with method 207 of MIL-STD-202.
The following details and exceptions shall apply:
a.
Mounting: Switches shall be mounted using the fixture on figure 207-4A for standard mounting fixtures for
electrical-indicating switchboard meters and other panel-mounted parts of method 207 of MIL-STD-202.
Rear support shall be provided for style JL switches having 6 or more decks; for style JK switches having 11
or more decks; and for all other switches having 20 or more decks.
b.
Electrical test conditions: As specified in 4.8.11d.
c.
Measurements during High-impact shock: Switch contacts shall be monitored for opening at each blow.
d.
Measurement after High-impact shock: Not applicable.
e.
Examination after test: Switches shall be examined for change in shaft position, and evidence of broken,
loose, deformed, or displaced parts.
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