AS/NZS 3112:2011 Standard Force For Pin Bending Tester Clause 2.13.7.2

The distance moved from the point of application shall be 7.5 ±0.3 mm, and then the pin shall be forced back to the starting point. Any ‘spring-back’ is ignored.

NOTE: ‘Spring-back’ means that the pin is allowed to move back to a position less than the travel distance, when the force is removed.

The travel from the starting point to the end point (7.5 mm) and back to the starting point 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 duration of one cycle shall be a maximum of 60 s.

The pins shall be tested for 20 complete cycles.

After the tests the pins shall be inspected with normal or corrected to normal vision.The pin shall not be broken off.

NOTE: Cracking of the pin, less than full thickness, is not deemed to be broken off.If in doubt, pins shall be disassembled from the plug and any insulation removed.

NOTE: In some cases the break may be below the face of the plug or the insulation may hold the broken pieces together, retaining electrical contact.

Figure 2.8 Application Of Force For Pin Bending Test AS / NZS 3112

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