MIL-PRF-15160/64F
VERIFICATION:
Qualification inspections: The number of qualification samples required shall be:
a. 24 samples maximum current rating of each voltage and design.
b. 24 samples minimum current rating of each voltage and design.
NOTE: If labels are used, five additional samples of any rating are required.
Sample size: The number of group III samples shall be twelve samples each of the maximum and
minimum current ratings. The samples shall be divided as shown in table III.
TABLE III. Short circuit test.
Number of
Short circuit
Test
samples
current
voltage
3
5,000 A
500 V ac 1/
3
200,000 A
500 V ac 1/
500 V dc
3
5,000 A
3
150,000 A
500 V dc
1/ A 600 volt ac test voltage may be used.
Group C inspection: Group C inspection shall be performed on short circuit current ratings of 5,000 A at
500 V ac; 200,000 A at 500 V ac; and 5,000 A at 500 V dc. The 150,000 A at 500V dc short circuit
current test is not required to be performed for group C testing.
INSPECTION ROUTINE:
AC short circuit test: AC short circuit tests shall be performed at the currents shown in table II at not less
than 500 volts, single phase, and not greater than 20 percent power factor, lagging. The current shall be
applied within plus or minus 10 degrees of the zero point of the voltage wave.
DC short circuit test: DC short circuit tests shall be performed at the currents shown in table II at not
less than 500 volts. The rate of rise shall be between 25,000,000 and 30,000,000 amperes per second.
Cross-reference: For applicable cross-reference see table IV. The existing stocks of superseded items
may be used. When exhausted, the superseding parts shall be used.
TABLE IV. Cross-reference.
Superseding
Superseded numbers for CAGE
number
81349
96906
F64C500V110A
F64H110R0C
MS15253-1
F64C500V125A
F64H125R0C
MS15253-2
F64C500V150A
F64H150R0C
MS15253-3
F64C500V175A
F64H175R0C
MS15253-4
F64C500V200A
F64H200R0C
MS15253-5
4
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