MIL-R-5757J
4.6.7.2 At reduced barometric pressure. Relays shall be tested in accordance with method 105 of MIL-STD-202. The following details shall apply:
a. Method of mounting: Normal mounting means. b. Test condition: C.
c. Tests during subjection to reduced pressure: As specified in 4.6.7.1, except test voltage shall be 350 V rms unless otherwise specified (see 3.1).
d. Points of application of test voltage: All terminals to case.
e. Duration of application: 60 seconds minimum for qualification and group B and group C tests. f. Attributes data is acceptable.
4.6.8 Electrical characteristics (see 3.10).
4.6.8.1 Static contact resistance or contact voltage drop (see 3.10.1). The static contact resistance or static contact voltage drop shall be required for each pair of contacts. If both contact voltage drop and static contact resistance are specified in the documents the manufacturer has the choice of which to run for the contacts. However, each contact must be tested.
4.6.8.1.1 Static contact resistance (see 3.10.1). Relays shall be tested in accordance with method 307 of MIL- STD-202. The following details and exception shall apply:
a. Method of connection: The point of measurement shall be on leads external to the case. Suitable jigs and fixtures shall be used.
b. Test load: Test current shall be 100 mA at a voltage equal to or below rated voltage, except those rated for low level. See 6.1.1 for low level voltage rating. For low level, the current shall be 10 mA maximum. (dc or peak ac).
c. Post test current: Load current and voltage shall be 100 mA maximum at a voltage equal to or below rated voltage, unless life tests are specified in the grouping. When life tests are specified in the grouping, the same current at a maximum of rated voltage as the life test, or 100mA maximum at 28vdc maximum, shall be used.
d. Points of measurements:
(1) Between all normally closed mated contacts.
(2) Between all normally open mated contacts, with the coil energized with rated coil voltage (or current) for non-latch type relays, or in the latch/reset position for magnetic latch type relays, with or without coil energized.
e. Number of activations prior to measurement: During static resistance tests, the number of activation prior to measurement is none.
f. Number of test activations: Maximum of three activations in each closed contact position for qualification Q1.
For all remaining groups in the Qualification table, group A, group B, and group C, one activation in each closed contact position.
g. Number of measurements per activation: One in each closed contact position. The readings shall be taken after the circuit has stabilized and within a maximum time of 10 seconds after activation.
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