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Page Title:
Relays sealed without a tracer gas |
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|  MIL-R-5757H
4.6.5.2 Relays sealed without a tracer gas. Relays sealed without a tracer gas shall be tested in
accordance with method 1014 of MIL-STD-883. At the option of the manufacturer, either 4.6.5.2a or
4.6.5.2b may be used. The following details shall apply:
a. Method 1014 of MIL-STD-883:
(1)
Test condition A1 or A2.
(2)
Measurements after test: Perform a gross leak test in accordance with method 112 of
MIL-STD-202, test condition A, condition B, or condition D. Silicone oil shall not be used. At
the option of the manufacturer, the gross leak test of method 1014 of MIL-STD-883, test
condition C may be used.
b. Method 1014 of MIL-STD-883, test condition B (gross leak test not required).
4.6.6 Insulation resistance (see 3.8). Relays shall be tested in accordance with method 302 of
MIL-STD-202 with the relay in the energized and de-energized (latch/reset) positions. The following
details shall apply unless otherwise specified (see 3.1):
a. Test conditions: A (for relays with coil and contact ratings both below 60 volts) and B (for all other
relays).
b. Points of measurement: As specified in points of application in table IV.
c. Attributes data is acceptable.
4.6.7 Dielectric withstanding voltage (see 3.9). Relays shall be tested as specified in 4.6.7.1 and
4.6.7.2. Testing in accordance with 4.6.7.2 is not required for group A testing.
4.6.7.1 At atmospheric pressure. Relays shall be tested in accordance with method 301 of
MIL-STD-202. The following details shall apply unless otherwise specified (see 3.1):
a. Points of application and magnitude of test voltage: As shown in table IV.
b. Maximum leakage current: 100 mA.
c. Duration of application: Sixty seconds minimum for qualification and group B and group C tests;
5 cycles (60 Hz) minimum for group A tests on test equipment which has an adequate response
time to measure the leakage current and is approved by the qualifying activity. For group A tests
on other than automatic test equipment (i.e., bench setup), the application time shall be 5 seconds
minimum.
d. Attributes data is acceptable.
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