Safety Information

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Report No.: 50250100 001
TRF No. IEC60950_1F
4.5
TABLE: Thermal requirements
P
Supply voltage (V) ......................
Test A: 90V, 60Hz Horizontal
Test B: 90V,
60Hz Vertical
Test C: 264V,
50Hz Horizontal
Test D: 264V, 50Hz Vertical
¾
Ambient T
min
(
°
C) ........................
--
--
--
--
¾
Ambient T
max
(°C) ........................
--
--
--
--
¾
Maximum measured temperature T of
part/at::
T (
°
C)
Allowed T
max
(
°
C)
Location
A
B
C
D
--
Loaded with 9Vdc, 3A
Plug holder (inside)
59.0
60.6
55.6
56.0
115
Plastic material under plug contact
70.6
72.3
65.2
66.5
115
Primary lead wire
67.2
69.1
61.1
63.6
105
PCB near NTC1
96.1
98.8
79.9
81.5
130
LF1 winding
82.5
84.7
68.0
69.1
130
PCB near DB1
97.1
100.2
83.6
84.9
130
EC1
91.1
93.8
77.5
78.7
105
L1 winding
92.7
95.5
80.4
83.3
130
EC2 body
74.6
76.2
67.2
68.9
105
CY1 body
91.0
94.3
85.0
88.1
125
T1 winding
99.5
101.3
91.4
92.5
110
T1 core
91.1
93.7
85.4
86.6
110
U1 body
87.8
90.4
82.2
84.3
130
PCB under Q3
97.6
99.6
97.0
98.7
130
EC5 body
95.2
97.6
93.2
95.0
105
PCB under IC1
88.6
92.3
85.7
88.8
130
Enclosure inside above T1
81.4
83.6
75.3
76.4
115
Enclosure inside under T1
100.0
101.1
91.2
92.7
115
Enclosure outside above T1
65.8
67.2
62.4
63.6
95
Enclosure outside under T1
75.1
77.8
71.4
74.1
95
Ambient
27.6
27.6
27.4
27.4
--
Supplementary information:
Note(s):
1.
The temperatures were measured under worst normal mode defined in 1.2.2.1 and as described in
sub-clause 1.6.2 and at voltages as described above.