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installing
the TCO in the chamber and gradually increasing
temperature up to the 20 ℃
lower than Tf, then
if the temperature of the chamber and the testing
products and made
equal. the temperature is increased
1℃ per minute, then the fuse will be function
within
the specified tolerance.
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when the
working voltage and current are applied the TCO
in ambient temperature, 20~25 ℃,
the temperature
of the TCO will go up. But the increase of temperature
shall be not more
than 10 ℃.
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After
having operated in temperature test of section 1,
the insulation resistance shall be more
then
0.2 ㏁ when tested with 500V resistance measuring
machine.
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The resistance
of the both leads of the TCO should not exceed 1.5㏁
within the 10mm
length of the leads. |
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After
conducting the Insulation resistance test, section
3, the TCO shall be maintain without
breakdown
when AC 500V is applied between the leads of the
TCO for 1 Min.
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after
keeping the TCO in the chamber with humidity 90~95%
and specified below condition
for 500 hours,
the TCO shall be tested Functioning temperature
test, section 1.
|
| Tf |
chamber temperature |
humidity |
| 100 ℃ less |
40 ± 2 ℃ |
90~95% |
| 100 ℃ over |
65 ± 2 ℃ |
|
|
after
keeping the TCO at the temperature 20 ± 3
℃ lower then the Tf for 48 hours,
the TCO
shall be tested Functioning temperature test, section
1.
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