MIL-DTL-13718F
3.4.11 Inductive load. In an inductive load circuit conforming to the applicable drawings
(see 6.2), relay shall withstand 10 000 cycles of operation (see 4.5.13). Thereafter, voltage drop
across relay contacts measured at relay terminals shall be not more than 250 mV (see 3.4.6).
3.4.12 Transient voltage characteristics. Any voltage spike generated by relay shall be
not more than ± 250 volts (see 4.5.14).
3.4.13 Environmental conditions.
3.4.13.1 Vibration. Relays shall withstand in-field operational vibration for 100 hours
without any breakage, loosened parts, or malfunction (see 4.5.15). Thereafter, relay shall
withstand 100 cycles of making and breaking in circuit with a resistive load equal to normal
resistive load rating (see 3.4.8). Thereafter, voltage drop across relay contacts measured at relay
terminals shall be not more than 250 mV (see 3.4.6).
3.4.13.2 Waterproofness. Grade A relay shall be waterproof (see 4.5.16).
3.4.13.3 Shock. Relay shall withstand in field operational shock for 100 hours without
any breakage, loosened, parts, or malfunction (see 4.5.17). Thereafter, contact bounce and
operating time shall conform to the applicable drawings (see 3.3 and 3.4.10).
3.4.13.4 Corrosion resistance. Relay shall withstand a corrosive environment without
adversely affecting performance (see 4.5.18). Thereafter, relay shall conform to the requirements
in 3.4.4 and 3.4.5, and shall withstand 500 cycles in conformance with the requirements in 3.4.8.
3.4.13.5 Fungus resistance. Relay shall resist fungus growth that adversely affects
performance (see 4.5.19). Thereafter, relay shall conform to the requirements in 3.4.4 and 3.4.5,
and shall withstand 500 cycles in conformance with the requirements in 3.4.8.
3.5 Finish. Cleaning, pretreatment, priming, and painting shall conform to the
manufacturer's standards. Paint shall not be applied to any grounding surfaces
(see 3.3.5.1 and 4.5.2).
3.6 Marking (see 4.5.2).
3.6.1 Identification marking. Identification marking shall be in accordance with the
manufacturer's standard practices and shall include the following:
a.
Nomenclature
b.
Rating: 24 volts, amperes
c.
Part or Identifying Number (PIN) (see 6.2 and 6.6)
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