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AS/NZS 3112 (Partial)
Clause
Requirement − Test
Result – Remark
Verdict
The material of the pin-insulation shall be
resistant to the stresses to which it may be
subjected at the high temperature likely to occur
in conditions approaching the bad connection
conditions and at low temperatures in particular
conditions of service.
resistant to the stresses to which it may be
subjected at the high temperature likely to occur
in conditions approaching the bad connection
conditions and at low temperatures in particular
conditions of service.
P
Compliance shall be checked by the tests of
Clause 2.13.13.2 to 2.13.13.5
Clause 2.13.13.2 to 2.13.13.5
P
(a) Pressure test at high temperature (2.13.13.2)
P
A specimen of one insulated pin only shall be
subjected to the following test by means of the
apparatus shown in Figure 2.2. This apparatus
shall have a blade having a round shape with a
diameter of 6 mm and a thickness of 0.7 mm.
subjected to the following test by means of the
apparatus shown in Figure 2.2. This apparatus
shall have a blade having a round shape with a
diameter of 6 mm and a thickness of 0.7 mm.
P
The specimen shall be placed in position as
shown in the Figure 2.5 and a force of 2.5 N shall
be applied through the blade to specimen.
shown in the Figure 2.5 and a force of 2.5 N shall
be applied through the blade to specimen.
P
The apparatus, with the specimen in position,
shall be maintained for 2 h in a heating cabinet at
a temperature of 200+5ºC. The specimen shall
then be removed from the apparatus and within
10 s, cooled by immersion in cold water.
shall be maintained for 2 h in a heating cabinet at
a temperature of 200+5ºC. The specimen shall
then be removed from the apparatus and within
10 s, cooled by immersion in cold water.
P
The thickness of the insulation shall be measured
immediately at the point of impression.
immediately at the point of impression.
P
The thickness within the area of the impression
shall be not less than 50% of the thickness
measured before the test.
shall be not less than 50% of the thickness
measured before the test.
P
Visual inspection shall be made and no cracks on
the insulation material shall be visible with normal,
or corrected to normal, vision without additional
magnification, and the dimension of the insulating
material shall not have changed below the
minimum size shown in Figure 2.4.
the insulation material shall be visible with normal,
or corrected to normal, vision without additional
magnification, and the dimension of the insulating
material shall not have changed below the
minimum size shown in Figure 2.4.
P
(b) Static damp heat test (2.13.13.3)
P
An insulated pin plug shall be subjected to two
damp heat cycles in accordance with IEC 60068-
2-30. Db (12+12 h cycle), 95% relative humidity,
lower temperature 25+3ºC and upper temperature
40ºC.
damp heat cycles in accordance with IEC 60068-
2-30. Db (12+12 h cycle), 95% relative humidity,
lower temperature 25+3ºC and upper temperature
40ºC.
P
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