Safety Information

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Report No.: 50250100 001
TRF No. IEC60950_1F
C.2
TABLE: transformers T1
P
Loc.
Tested insulation
Working
voltage
peak / V
(2.10.2)
Working
voltage
rms / V
(2.10.2)
Required
electric
strength
(5.2)
Required
clearance /
mm
(2.10.3)
Required
creepage
distance /
mm
(2.10.4)
Required
distance
thr. insul.
(2.10.5)
Primary
winding to
secondary pin
RI
428
250
3000V
4.2
5.0
0.4
Core to
secondary pin
RI
428
250
3000V
4.2
5.0
0.4
Loc.
Tested insulation
Test
voltage/
V
Measured
clearance /
mm
Measured
creepage
dist./ mm
Measured
distance
thr. insul. /
mm;
number of
layers
Primary
winding to
secondary
winding
RI
(Primary pin of T1 to secondary pin of T1)
3000Vac
9.5
9.5
TIW used.
Core to
secondary pin
RI
(Core of T1 to secondary pin of T1)
3000Vac
10.0
10.0
TIW used.
supplementary information:
1) RI=reinforced insulation.
Concentric windings on single bobbin.
Core is
considered as primary.
Triple insulated wires used as secondary winding.
Teflon tube
used to separate the primary winding and secondary triple insulated wires where they are
crossing at 45
-90
o
angle.
The lead pins
of primary winding were directly moulded in bobbin.
The lead pins of secondary triple insulation wire were fly out of the transformer and solder on the PCB then
glued as additional fixing.
Two layers insulation tape wrapped around of core of transformer as supplementary insulation.