Safety Information

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Report No.: 50250100 001
TRF No. IEC60950_1F
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
fus
e F1 (F*)
420
250
1.5
2.6
2.5
2.6
Trace of fuse F1 (F*)
420
250
1.5
2.8
2.5
2.8
LF1 to accessible enclosure
(R
*)
420
250
4.0
5.6
5.0
5.6
Primary component EC2 to
accessible plastic enclosure
(R*)
420
250
4.0
8.0
5.0
8.0
Primary pin to secondary pin
of CY1 (R*)
420
250
4.0
7.2
5.0
7.2
Primary pin to secondary pin
of U1 (R*)
420
250
4.0
10.5
5.0
10.5
Core of T1 to secondary
component EC5
(R*)
428
250
4.2
6.5
5.0
6.5
Core of T1 to type C
connector board
(R*)
428
250
4.2
5.8
5.0
5.8
Core of T1 to secondary pin of
CY1
(R*)
428
250
4.2
9.5
5.0
9.5
Notes: *F=Functional insulation, S=Supplementary insulation, R=Reinforced insulation
A plastic
barrier was used
between primary circuit and secondary circuit to separate them to meet reinforced
insulation.
Core of transformer T1 is considered
as primary part.
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
428
250
AC3000
0.4
1)
Note(s): 1) See table 1.5.1.