2J Below Pendulum Hammer Test Apparatus for Testing Socket-Outlet
and Switches
1. Introduction
the IK01 to IK06 pendulum hammer test apparatus is for the test of
energies not exceeding 1J, it is consisted by test apparatus,
striking element, mounting fixture, sheet of plywood and steel
tube. The test apparatus can meet the requirement of IEC60068-2-78
annex D and IEC60884-1 clause 24.1 and figure 22 to 26, it is
applied to the mechanical strength test for household and similar
use plugs, sockets and surface-type mounting box, screw glands,
covers, switches and other electrical accessories.
The striking element made of polyamide (radius of 10mm, mass of
150g and rockwell hardness of HT100) is firmly fixed to the lower
end of the steel tube with an outer diameter of 9mm and a wall
thickness of 0.5mm, the pendulum pivot is in the upper end of steel
tube, to make the steel tube can only move in the vertical plane
through the axis of the pendulum pivot. The axis of the pendulum
pivot should be 1000mm above the axis of the striking element. The
specimens are mounted on a sheet of plywood 8mm thick and 175mm
square, the top and bottom edges of the plywood should be firmly
fixed on a rigid bracket, which is part of mounting fixture. The
specimen (like surface-type socket-outlets and surface-type
mounting box) are mounted on the plywood as in normal service. The
specimen (like flush-type socket-outlet) is not possible to mount
on the plywood directly, a suitable adapter would need to be
prescribed.
2. Parameter
| Swing rod | Material: steel tube Size: 9mm (outer diameter)*0.5mm (wall thickness)*1000mm (length) |
| Mounting fixture | Weight: 10±1KG Structure: X and Y axis can be adjustable, and can rotate ±90° |
| Plywood | Size: 8mm (thickness)*175mm (L)*175mm (W) |
| Striking element | Combined mass: 200 g (150 g) ± 1 g equivalent mass: 250g(200g)± 2% Material: polyamide Size: |
| Release mode | Manual release |
3. Impact energy VS equivalent mass VS fall height
| Energy/J | 0.14 | 0.2 | (0.3) | 0.35 | (0.4) | 0.5 | 0.7 | 1 |
| Equivalent mass/kg | 0.25 | (0.2) | 0.25 | (0.2) | 0.25 | (0.2) | (0.2) | 0.25 | 0.25 | 0 .25 |
| Fall height±1%mm | 56 | (100) | 80 | (150) | 140 | (200) | (250) | 200 | 280 | 400 |
