MIL-DTL-3965H
TABLE IX. Group C inspection.
Number of
Number of
Test
Requirement
failures
sample units
paragraph
paragraph
Test
allowed 1/
to be
inspected
Subgroup 1 (every 6 months)
Shock (specified pulse)
12
4.7.8
3.12
Vibration, high frequency
4.7.9 1
3.13
Subgroup 2 (every 6 months)
3.17
Terminal strength
4.7.13
3.18
Surge voltage
4.7.14
3.19
Moisture resistance
4.7.15
Dielectric withstanding voltage
1
12
3.7.2
(insulated styles only, see 3.1)
4.7.3
Insulation resistance
3.8
(insulated styles only, see 3.1)
4.7.4.2
Seal (hermetically-sealed styles,
(see 3.1)
3.6
4.7.2
Subgroup 3 (every 6 months)
Low temperature (storage)
(all styles)
12
4.7.16
3.20
1
Subgroup 4 (every 12 months)
Life at 85°C (1,760 hours)
4.7.18.3
3.22.3
1
10
Subgroup 5 (every 12 months)
3.24
4.7.20
Life at 125°C (see 3.1)
1
6
1/ A sample unit having one or more defects shall be considered as a single failure.
4.7.3.1 Style CL55. The following details and exception shall apply:
a.
Special preparation: The two terminals shall be electrically connected together before application of voltage.
Magnitude of test voltage: 300 volts ±10 percent.
b.
c.
Nature of potential: DC.
d.
Points of application of test voltage: Between terminals and case.
e.
Examination after test: Capacitors shall be examined for evidence of damage and breakdown.
4.7.3.2 Insulated styles (see 3.1). The following details and exception shall apply:
a.
Magnitude and nature of test voltage: 2,000 V dc, minimum.
b.
Points of application of test voltage: Between the capacitor case and a V-block in intimate contact with the
sleeving.
c
Examination after test: Insulating sleeving shall be examined for evidence of breakdown.
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