Safety Information

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Report No.: 50261218 001
IEC 60950-1
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60950_1G
2.10.3 and
2.10.4
TABLE: Clearance and creepage distance measurements
P
Clearance (cl) and creepage
distance (cr) at/of/between:
U peak (V)
U r.m.s.
(V)
Required cl
(mm)
cl
(mm)
Required
cr (mm)
cr
(mm)
L trace and N trace before
fuse F1 (F*)
420
250
1.5
4.8
2.5
4.8
Trace of fuse F1 (F*)
420
250
1.5
2.6
2.5
2.6
Primary heatsink of Q1 to
accessible enclosure (
R*)
420
250
4.0
6.2
5.0
6.2
Primary component LF2 to
accessible plastic enclosure
(R*)
420
250
4.0
9.0
5.0
15.0
Primary pin to secondary pin
of CY1 (R*)
420
250
4.0
6.6
5.0
6.6
Primary pin to secondary pin
of U
2 (R*)
420
250
4.0
6.5
5.0
6.5
Core of T1 to secondary
component EC
3 (R*)
530
281
4.4
8.0
5.8
12.0
Core of T1 to type C
connector board
(R*)
530
281
4.4
9.0
5.8
14.0
Core of T1 to secondary pin of
CY1
(R*)
530
281
4.4
9.0
5.8
9.0
Notes: *F=Functional insulation, S=Supplementary insulation, R=Reinforced insulation
Two layers insulation tape wrapped overlapped for heatsink of Q3 near primary circuit and components as
supplementary insulation.
Core of transformer T1 is considered as primary part, for construction of transformer, see appended table C.2
for details
Two layers insulation tape wrapped around of core of transformer as supplementary insulation.
2.10.5
TABLE: Distance through insulation measurements
P
Distance through insulation (DTI) at/of:
U peak
(V)
U rms (V)
Test volt-
age(V)
Required
DTI(mm)
DTI
(mm)
Enclosure, pin holder
420
250
AC3000
0.4
1)
Bobbin of transformer T1
530
281
AC3000
0.4
1)
Note(s): 1) See table 1.5.1.