Figure 2.8 Application Of Force For Pin Bending Test AS / NZS 3112
| Figure 2.1 | dimensions of plugs |
| Figure 2.2 | apparatus for flexing test |
| Figure 2.3 | form of pin |
| Figure 2.4 | dimensions of insulation on insulated live pins |
| Figure 2.5 | pressure test apparatus for insulation on insulated plug pins at
high temperature |
| Figure 2.6 | impact test apparatus for insulation on insulated plug pins at low
temperature |
| Figure 2.7 | abrasion test apparatus for insulation on insulated pin plugs |
| Figure 2.8 | application of force for pin bending test |
| Figure 2.9 | mounting of plug for temperature rise test |
| Figure 2.10 | pin clamping unit for the temperature rise test |
Application
All flatpins of plugs rated up to and including 15 A shall be
subjected to a pin bending test.
Three sample plugs not subjected to any previous tests shall be
tested as follows:
Pins ofassembled plugs shall be tested by clamping the plug in a
rigid holding blockand applying a bending force, as shown in Figure
2.8, to the pin under test.
The pins shall be straight at the beginning of the test. If there
is any doubt about thestraightness of the pin, it shall be checked
by the appropriate plug gaugeshown in Appendices A, B or F.
The point of application of the force shall be 14 ±0.5 mm from the
face of the plug.
The direction of the force shall be along a line parallel to the
face of the plug.
Active and neutral pins shall be forced towards the centroid of the
plug and then back tothe starting point. On the first sample plug,
any earth pin shall be forced butin one direction only and then
forced back to the starting point. On the secondsample plug, any
earth pin shall be forced in the opposite direction to thatused for
testing the first sample plug. On the third sample plug, any earth
pinshall be forced in the direction that gave the least
favourableresult during testing of the first two sample plugs.
The distancemoved from the point of application shall be 7.5 ±0.3
mm, and then the pin shallbe forced back to the starting point. Any
‘spring-back’ is ignored.
The travelfrom the starting point to the end point (7.5 mm) and
back to the startingpoint is one cycle (i.e. one cycle is two
separate movements).
The speed of deflections shall be a maximum of 50 mm/s, without
intentional delay between consecutive movements within each cycle.
The interval between successive cycles shall be a minimum of 10 s.
The durationof one cycle shall be a maximum of 60 s.
The pins shall be tested for 20 complete cycles.
ConformsTo
AS/NZS 3112:2011 +A2:2012 clause 2.13.7.2 Figure 2.8
Specifications
A. The point of application of the force shall be 14 ±0.5 mm from
the face of the plug.
B. The distance moved from the point of application shall be 7.5
±0.3 mm
C. Dimensions : W*D*H=350mm *250mm* 140mm
D. Weight : About 15KG
Ordering Information
Test apparatus for pin bending test AS/NZS 3112
