Page 585 - Wago_Rail-MountedTerminalBlockSystems_Volume1_2015_US.pdf

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• Shock Test to IEC/EN 60068-2-27; Railway Applications IEC/EN 61373
The shock test is similar to the vibration test except that, instead of continuous vibrations, single shocks are applied to the test
specimen. Shock tests are usually carried out with an acceleration of 20g, for example, over a period of 11ms. Tests for special
requirements often call for much higher values. Like the vibration tests, shock tests are primarily used to test the voltage drop vari-
ation or contact breaks, etc.

Length of test conductor Length of test conductor
between point a) and b): between point a) and b):
100mm 100mm

a) a)
Fixing point Fixing point

b) b) I
t

E.g. shock requirement
acc. to IEC/EN 60068-2-27
Half-sine shock
100g acceleration 6ms duration Shock direction: 3 axes
(3 shock in positive direction and 3 shocks in negative direction)

Time-Dependent Course of the Shock / 100g, 6ms Time-Dependent Course of the Shock / 100g, 6ms
a in m/s² Negative Direction a in m/s² Positive Direction
200 1500
100 1400
0 1300
-100 1200
-200 1100
-300 1000
-400 900
-500 800
-600 700
-700 600
-800 500
-900 400
-1000 300
-1100 200
-1200 100
-1300 0
-1400 -100
t in t in
-1500 ms -200 ms
0.445 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 0.445 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
Status: Stop Status: Stop
Cause: Number of shocks ready! Cause: Number of shocks ready!
Date: 2004-05-03 Control: active Date: 2004-03-05 Control: active
Time: 08:53:16 Total number of shocks: 4 Time: 08:52:00 Total number of shocks: 4 14
Modulation: 100% Modulation: 100% 2
Warning limits: inactive Top acceleration: 1017.37 m/s² Warning limits: inactive Top acceleration: 1008,80 m/s
Turn-off limits: inactive Speed: 3.78 m/s Turn-off limits: inactive Speed: 3.77 m/s

Upper warning limits Lower warning limits Upper turn-off limits Lower turn-off limits Upper warning limits Lower warning limits Upper turn-off limits Lower turn-off limits
Set acceleration curve Actual acceleration curve Measured acceleration curve Set acceleration curve Actual acceleration curve Measured acceleration curve