Downloaded from https://www.everyspec.com AMCP 706-19 TABLE 4-7 SUMMARY OF TEST LEVELS (Adapted from Ref, 6) Equipmnent Temperature 0.0ff Toot Cycling Vibration Cycling Lavul Temperature See Note Sea Note See Note A 2545 None 1 2 Al1 25*5 None None NoneI a 40*5 None12 C~ 50+5 /-0 Nono 1 2 D 65*5 None 1 2 E -54 to755 5 16 E -54 to 71 5 1 6 0 -6S4to 95 516 H4 -66 to 71 516 I -64 to 125 516 All See Note .3 for Input Voltage, and Note 4 for Inmput Voltage Cycling. Notes 1. 2.20 1 10% peak cceleratilon value at any nonrfonant frequency betwean 20 and 00 Haz measured at the rmountingl points on the equipment.
The duration1 of vibration shall be at gsnat 10 min durIng each hour of equipment operating 2. Turn on and let temperature stabilize, hold f or 3 hr, thaon turn of f and lot temperature stabulize. This cycle shalt continue throughout ths test, 3. Nominal epecified voltage plus 5%, minus 2%. 4. When so directeod by the procuring activity. voitaga cycling shall be acmplished aa follows: The Itiput voltage shall be maintained at 110% nominal for one-third of the equipment "on" cycle, o t the nominal value for the wend onewthlrd of the equipment "on" cycle, and at 90% for the f Inal one-third uf the equipment "on" cycle.
This cycling procedure Is to be repeated continuously throughout the reliability test. 5. Tampereture cycling shall be: time to etabll le at low temperature followed by time to nebilbe at the high temperature, pius 2 hr. 6. Equipment off during cool Ing cycle end on during heat Ing cycle, sents procedural guidelines for selecting and ment, test records and reports, and final Installing equipment, Initiating tests, heating reports. and cooling cycles, repeated testing, deter- mining compiance, failure actions and failure 4-4 TYPICAL ARMY SCHEDULE categories, failure analysis and information, verifying repair, preventive maintenance and Fig.
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