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Page Title:
Table XVIII - Temperature cycling test data. Sample #2 Ser. No. |
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|  MIL-M-17059(SHIPS)
40.6 Assembly of data. - All data shall be recorded in the following order:
FORM
Sample #1 and 2
Address (City and State)
Mfgr's Name
Frame
HP
Date of Mfgr.
Phase
volts
Type
RPM
Duty
-- Cycles
Serial No. Sample #1
Sample #2
Drawing No.
TEST DATA
(a)
Periodic test data.
(b)
Shock test report and approval letter.
(c)
Submergence test data as shown in table XVII.
(d)
Temperature cycling test data as shown in table XVIII.
Table XVIII - Temperature cycling test data. Sample #2 Ser. No.
Insulation
Elapsed
Dissipation
Capacitance,
Temperature
resistance
time
factor, per-
Cycle
uuf
`c.
megohms
(hours)
cent
Initial-air-
cold
1st Oven
submerged
2nd Same condi-
tions - as
3rd cycle one
for each
cycle
20
Normal potential test_
Inspection report.
Photographs.
40.7 Definition of failure. - Failure is considered to have occurred if any sample does not comply with
the requirements specified herein and the following
(a) Open, grounded or short circuited winding.
(b) Failure to pass normal potential test.
(c) Insulation resistance value of less than 10 megohms (corrected to 25C.) at any time during the
submergence or temperature cycling test. An insulation resistance value of not less than 100
megohms should be considered as a goal.
(d) A dissipation factor (cold) of more than 50 percent at any time during the submergence or
temperature cycling test. A dissipation factor of not more than 20 percent should be con-
sidered as a goal.
45
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