Read Harman Kardon HS 300 (serv.man3) EMC - CB Certificate online
Report No. JSH006030124-001
Page 69 of 81
19. Voltage Dips, Short Interruptions and Voltage Variations
Immunity Test
Immunity Test
Test result
PASS
19.1 Severity Level and Performance Criterion
19.1.1 Test level
Test level
% UT
Voltage dip and short interruptions
% UT
Duration
(in period)
0
100
40
60
70
30
0.5 *
1
5
5
10
25
50
25
50
X **
Notes:
1.“*” for 0.5 period, the test shall be made in positive and negative polarity, i.e.
starting at 0
° and 180°, respectively
2. “**” means “x” is an open duration. This duration can be given in the product
specification.. Utilities in Europe have measured dips and short interruptions of
duration between ½ a period and 3000 periods, but duration less than 50 periods
are most common.
3. if the EUT is tested for voltage dips of 100%, it is generally unnecessary to test for
other levels for the same durations. However, for some cases(safeguard systems or
electro-mechanical devices) it is not true. The product specification or product
committee shall give an indication of the applicability of this note.
4. The gray rows are selected test level.
19.1.2 Performance Criterion
Performance criterion C at the test level 30%, 60%
Performance criterion B at the test level 0%.
Performance criterion B at the test level 0%.
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