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|  MIL-C-51542(EA)
4.4.3.4 Classification of defects.
(a) Converter, frequency, static (Dwg 5-19-6425).
Defects
Categories
.
None defined
Critical:
AQL 1.0 percent defective
Major:
Component missing, incorrect or incorrectly assembled
101
Damaged wires
102
Improper soldering
103
104
Workmanship (3.5)
(b) Packaging inspection (SPI P5-19-6425) (see section 5).
Defects
Categories
None defined
Critical:
AQL 2.5 percent defective
Major
Item not completely cleaned/dried
101
-
Cushioning pads missing or not as specified
102
103
Wrap missing or not as specified
Unit or shipping container marking incorrect, missing or
104
illegible
105
Unit or shipping container and closure not as specified
Unit or shipping container damaged
106
4.4.4 Tests.
Cycling burn-in and performance tests shall be conducted as
follows:
4.4.4.1 Cycling burn-in test.
(a) Position the converter on a work bench so that the electrical
connectors are readily accessible. Open the protective cover on the circuit
breaker and fault isolation test points. Open the circuit breaker. Connect
the converter to a 208 V, 60 Hz, 3-phase power source through a three pole
relay as follows:
Phase 1 to pin A of J7
Phase 2 to pin B of J7
Phase 3 to pin C of J7
CAUTION:
Pin H of J7 must be grounded.
(b) Connect the coil of the relay to a timer so that it may be
energized at the rate of once every minute.
6
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