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Report No.: 50261218 001
IEC 60950-1
Clause
Requirement + Test
Result - Remark
Verdict
TRF No. IEC60950_1G
4.5
TABLE: Thermal requirements
P
Supply voltage (V) ....................... :
Test A: 90V, 60Hz Vertical
Test B: 90V, 60Hz
Horizontal
Test C: 264V, 50Hz
Vertical
Test D: 264V, 50Hz Horizontal
¾
Ambient T
min
(°C) ......................... :
--
--
--
--
--
¾
Ambient T
max
(
°
C) ........................ :
--
--
--
--
--
¾
Maximum measured temperature T of part/at......:
T (
°
C)
Allowe
d Tmax
(°
C)
Location
A
B
C
D
--
--
Plug pin holder
59.9
65.8
51.4
55.5
--
115
Internal input wire
68.8
75.0
59.5
64.3
--
80
LF1 winding
81.3
88.2
63.1
67.8
--
130
MOV1
83.1
89.3
61.4
65.5
--
125
CX1 body
82.6
88.7
60.7
64.5
--
100
LF2 winding
83.7
89.5
57.7
60.8
--
130
LF2 core
89.8
96.2
60.8
64.2
--
130
PCB near BD1
98.0
102.7
66.3
68.8
--
130
EC1 body
98.4
101.4
72.9
74.8
--
105
PCB near Q1
101.2
106.5
78.4
82.1
--
130
PCB near U1
96.8
100.2
74.9
77.2
--
130
PCB near Q2
101.4
103.2
87.3
88.7
--
130
EC2 body
97.5
101.1
85.4
88.0
--
105
CY1 body
96.2
98.5
89.5
91.5
--
125
T1 winding
98.7
104.8
96.3
101.9
--
110
T1 core
95.8
101.7
89.0
93.9
--
110
PCB near T1
79.3
86.5
72.8
78.9
--
130
U2 body
91.0
95.2
85.1
88.8
--
115
PCB near Q3
86.1
93.2
81.8
87.9
--
130
PCB near U1(output board)
109.2
113.0
107.6
109.9
--
130
PCB near Q1(output board)
103.8
106.7
104.3
106.2
--
130
Enclosure inside above transformer
88.8
94.0
79.4
83.6
--
115
Enclosure outside above transformer
77.4
84.7
73.1
77.4
--
95
Enclosure inside under transformer
85.8
92.2
88.0
94.2
--
115