Reference – Atec Noiseken-LSS-F02 Series User Manual
Page 7
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Reference
Summary of IEC61000-4-5 ed2.0 Standard
1. General
The task of the described laboratory test is to find the reaction of the EUT under specified operational conditions, to surge
voltages caused by switching and lightning effects at certain threat levels. This standard specifies 2 kinds of the combination
waveforms. One is simulating the injection to power supply lines and interconnections lines (The voltage waveform as 1.2/50μs
and current waveform as 8/20μs) and the other is doing the injection to telecommunications lines (The voltage waveform as
10/700μs and current waveform as 5/320μs).
It is not intended to test the capability of the EUT’s insulation to withstand high-voltage stress, direct injections of lightning
currents, i.e., direct lightning strikes, are not considered in this standard.
2. Test Level
Level
Open-circuit test voltage±10% (kV)
1
0.5
2
1.0
3
2.0
4
4.0
x
special
* X can be any level determined by consent between the EUT manufacturer and
the simulator supplier
■
Voltage Surge (1.2/50μs)
■
Voltage Surge (10/700μs)
U
High-voltage source
Rc
Charging resistor
Cc
Energy storage capacitor (20μF)
Rs
Pulse duration shaping resistors
Rm Impedance matching resistor
Lr
Rise time shaping inductor
Cc
Rc
Rm
Rs
1
Rs
2
Lr
U
U
High-voltage source
Rc
Charging resistor
Cc
Energy storage capacitor (20μF)
Rs
Pulse duration shaping resistor
Rm Impedance matching resistors (Rm1=15Ω:Rm2=25Ω)
Cs
Rise time shaping capacitor (0.2μF)
S1
Switch closed when using external matching resistors
Cc
Cs
Rc
Rm
1
Rm
2
S1
Rs
U
■
Current Surge (8/20μs)
■
Current Surge (5/320μs)
Front time
: T
1
=1.67×T=1.2μs ±30%
Time to half-value : T
2
=50μs ±20%
T
1
T
2
T
t
30% max.
0.0
0.3
0.5
0.9
U
1.0
A
Front time
: T
1
=1.67×T=10μs ±30%
Time to half-value : T
2
=700μs ±20%
T
1
T
2
T
t
0.0
0.3
0.5
0.9
U
1.0
A
Front time
: T
1
=1.25×T=8μs ±20%
Time to half-value : T
2
=20μs ±20%
T
1
T
2
T
t
30% max.
0.0
0.3
0.1
0.5
0.9
U
1.0
1.0
I/I
max
O
1
T
2
T
2
T
t
0.9
0.5
0.1
0.0
Front time
: T
1
=1.25×T=5μs±20%
Time to half-value : T
2
=320μs±20%
■
1.2 / 50 Combination Waveform (1.2/50 - 8/20μs) Generation Circuit
■
10 / 700 Combination Waveform (10/700 - 5/320μs) Generation Circuit
3. Waveforms Generator and Waveforms verification