Standard IEC60884-1 2013 clause 24.1, IEC60669-1, IEC60068-2-75
Application This device is designed to test the mechanical strength of plugs and socket-outlets, surface type mounting boxes, screw glands, gland covers, switch and other electrical accessories for household plugs.
Test Sample Plugs and socket-outlets, surface type mounting boxes, screw glands, gland covers, switch and other electrical accessories.
Feature The mounting bracket can be moved up and down, left and right and the impact angle can be adjusted. The device is a low energy pendulum impact device for 2J and below.
(1)Frame, (2)Specimen, (3)Mounting support
① Polyamide ②,③,④,⑤ Steel Fe 360
Application of the blows
Sketch
Total number of blows
Points of application
Parts to be tested
26a)
3
One at the centre One between O and P a One between O and Q a
A
26b)
2
One between O and R a One between O and S a
A
26c)
2
One on the surface T a One on the surface U a
B,C and D
26d)
2
One on the surface V a One on the surface Z a
B,C and D
The blow is applied to the most unfavorable point
The dimension of the recess in the hornbeam block are given as an example. More general dimensions are under consideration.
Parameters 1. Pendulum: Length: 1000mm; external diameter: 9mm; steel pipe wall thickness: 0.5mm; material: steel; weight: 100±1g 2. Mounting bracket: weight: 10±1 kg; it is well-set and the Horizontal direction and the vertical direction can be adjusted. The whole bracket can be rotated 90°through the rotation axis. 3. Striking element: 150g, equivalent mass 200g. (200g striking element for option) 4. Impact energy, equivalent mass and drop height table 5. Operation: manual release of the striking element
Energy/J
0.14
0.2
(0.3)
0.35
(0.4)
0.5
0.7
1
2
5
10
20
50
Equivalent mass /kg
0.25
(0.2)
0.25
(0.2)
0.25
(0.2)
(0.2)
0.25
0.25
0 .25
0.5
1.7
5
5
10
drop height ±1%mm
56
(100)
80
(150)
140
(200)
(250)
200
280
400
400
300
200
400
500
Notes: 1. See note in IEC 60068-2-75 3.2.2 2. In this part, the energy (J) is calculated taking the standard acceleration due to the earth's gravity(g), rounded up to the nearest whole number, that is 10m/s².
