Read Harman Kardon AVR 4550 EMC - CB Certificate online
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IEC 60065, 6th edition : 1998
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- Page 9 of 39 -
Order
No.
200245266
HEATING
∆
t = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
P
t1 =
24,9 °C
24,9 °C
t2 =
24,3 °C
24,9 °C
Test voltage
207 V
254,4 V
Winding
R1/
Ω
R2/
Ω
∆
t measured
∆
t allowed *)
Insulation
class
class
Main transf. pr. winding (207V)
2,048
2,569
66,6
85
Class E
Main transf. pr. winding (254,4V)
2,048
2,636
74,5
85
Class E
Sub transf. pr. winding (207V)
728
835
38,7
85
Class E
Sub transf. pr. winding (254,4V)
728
896
59,9
85
Class E
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
Main transformer core
45,0
49,1
85
Sub transformer core
27,2
39,1
85
Diode, D201 body
50,2
55,9
-
PWB near D201
28,2
32,3
85
Diode, D501 body
48,1
50,6
-
PWB near D501
42,8
44,8
85
Diode, D502 body
19,7
20,8
-
Diode, D503 body
22,1
24,0
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E. Capacitor, C202 body
21,4
25,1
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E. Capacitor, C505 body
24,6
26,6
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Regulator, IC55 body
35,4
47,3
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Regulator, IC55 heat-sink
32,6
46,3
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Bias TR, Q314 body
45,1
50,0
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Power TR, Q317 body
46,3
51,5
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Power TR, Q318 body
48,2
54,4
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Power TR, Q319 body
48,1
54,1
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PWB near Q319
27,4
30,5
85
Power TR, Q329 body
53,7
60,6
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