Safety Information

Page 34 of 43
Report Ref. No.: 68.210.18.0104.01
IEC 60950-1
Clause
Requirement + Test
Result - Remark
Verdict
TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch
TRF No. IEC60950_1F
Basic/supplementary insulation:
Different polarities of fuse F1
340
240
2.0
2.6
2.4
2.6
Reinforced insulation:
Primary trace to secondary
trace under T1 on PCB
648
285
4.7
7.7
5.8
7.7
T1 primary winding/core to
secondary winding/pins on
body
648
285
4.7
6.5
5.8
6.5
T1 primary winding/core to
secondary component Q2
648
285
4.7
9.5
5.8
9.5
Primary traces/components of
power supply board to
secondary
traces/components of USB
board
648
285
4.7
12.0
5.8
12.0
AC inlet pins to secondary
metal sheet via insulation
sheet
340
240
4.0
5.0
4.8
5.0
Across CY1
352
240
4.0
7.7
4.8
7.7
Across U2
358
240
4.0
6.5
4.8
6.5
Primary traces/components to
accessible enclosure
340
240
4.0
11.8
4.8
11.8
Supplementary information:
Core of transformer T1 was considered as primary parts, TIW used as secondary winding.
2.10.5
TABLE: Distance through insulation measurements
P
Distance through insulation (DTI) at/of:
U peak
(V)
U rms
(V)
Test
voltage
(V)
Required DTI
(mm)
DTI
(mm)
Plastic enclosure
340
240
3000
0.4
Min. 1.50
Transformer (T1) bobbin
648
285
3000
0.4
Min. 0.70
Optocouplers (U2)
358
240
3000
0.4
Min. 0.40
Insulation sheet above of power supply board
648
285
3000
0.4
Min. 0.40
Supplementary information: