Power Line Phaseneutral
2500V min
2us max
560us min 160us min
100A max 200A max
720us ±20% 720us ±20%
25A min 37.5A min
10us min 1000A min
10us max 10us max 9us±30% 9us±30%
vi. Replace protective devices after testing if the EUT is to be re-used, in case of degradation
5. Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields (KN-61000-4-6) A. It follow to International Standard
v. All lower test levels must also be satisfied ? increase the stress voltage in steps up to the maximum, to check that the protective devices do not allow upset or damage at lower levels of applied voltage despite satisfactorily clamping high levels
metallic 800V min 10us max
longitudinal 1500V min 10us max
Telephone line type A (high energy)
FCC metallic
Part
1000V min 9us±30%
68 longitudinal 1500V min 9us±30%
Limited by additional 40Ω in series
Transverse
ITU
and
0.5 ~ 5KV
10us
longitudinal
700us
12.5~125A
Defined by circuit components
Telephone line type A (high energy)
0.25 ~ 4KA ±10%
8us ±20%
20us ±20%
AC Power 0.5 ~ 4KV IEC
line to earth ±10%
1.2us ±30%
50us ±20%
Limited by additional 10Ω in series
Other line line to earth
Voltage test level
Time of descending voltage
Time of reducing voltage
40% UT
2s ± 20%
1s ± 20%
0% UT
2s ± 20%
1s ± 20%
x
X
‘x’ means the specification giving time(Suggested by manufacture)
B. IEC 61000-4-6(Test procedure see this)
i. Test level table
Test frequency Range : 150KHz ~ 80MHz
EMI/EMC Test List
1. The Korean Standard is below; A. The protection of electromagnetic wave i. The ESD test follows the standard of KN61000-4-2 ii. The radiation of electromagnetic wave endurance test follows the standard of KNKN61000-4-3 iii. The EFT(Electrical fast transient/burst immunity) test follows the standard of KN61000-4-4 iv. The surge test follows the standard of KN61000-4-5 v. The electromagnetic wave endurance test follows the standard of KN61000-46 vi. Magnetic frequency of power test follows the standard of KN61000-4-8 vii. About voltage falling and temperature power cut, presented test level and lasting time follows the standard of KN61000-4-11 B. The hindrance protection of electromagnetic wave i. The prevention test of hindrance of microwave follows the KN16-2(it’s based on CISPR 16) ii. The prevention of the error by microwave follows the KN14-1(it’s based on CISPR 14-1)
Level
Test Field Value V/m
1
1
2
3
3
10
X
Special value
‘X’ is open test value : Some special device giving condition
4. Testing and measurement techniques - Surge immunity test (KN61000-4-5)
Time of increasing voltage 2s ± 20% 2s ± 20% x
3. Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field
immunity test (KN61000-4-3)
A. As it called by EMS
B. It follows the international standard of IEC 61000-4-3
C. The standard table is below;
i. The surface terminal EMS test level
ii. Frequency Range : 80MHz ~ 1000MHz
iii. Disconnect it from other equipment where possible and insulate the whole setup to prevent flashover
iv. Synchronise each surge to the peak of the AC supply waveform to give maximum stress, and to the zero crossing to induce maximum follow-on energy in case this occurs
B. Standard Table
Table 1 About voltage falling and temperature power cut, presented test level and lasting time
Test Level
voltage falling and temperature power cut
Lasting time
% UT 0
% UT 100
(Periodic time) 0.5o 1
5
40
60
10
25
50
40
30
x
During 0.5 period of test, (+) and (-) polarity(Starting at 0o and 180o
Table 2 During drifted time, the timing of voltage change supplied
3 each polarity
C. Surge Application i. Ground reference plane is not essential, provided care is taken with earth connections ii. Physically isolate the EUT during the test
v. IEC 61000-4-1 : 1990, Electromagnetic compatibility(EMC) – Part 4 : Testing and measurement techniques – Section 1 : Overview of immunity tests – Basic EMC publication
2. Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests (KN61000-4-11) A. It follow to International Standard(Comparable with IEC 61000-4-11 and 610004-1 and 61000-2-2) i. IEV 50(161) : 1990. International Electro-technical Vocabulary(IEV) – Chapter 161 : Electromagnetic compatibility ii. IEC 68-1 : 1988, Environment test – Part 1 : General and guidance iii. IEC 61000-2-1 : 1990, Electromagnetic compatibility(EMC) – Part 2 : Environment – Section 1 : Description of the environment – Electromagnetic environment for low-frequency conducted disturbances and signaling in public power supply systems iv. IEC 61000-2-2 : 1990, Electromagnetic compatibility(EMC) – Part 2 : Environment – Section 2 : Compatibility levels for low-frequency conducted disturbances and signaling in public low-voltage power supply systems