Read Harman Kardon AVR 7500 (serv.man9) EMC - CB Certificate online
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IEC 60065, 6th edition : 1998
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- Page 9 of 43 -
Order No.
200211175
HEATING
∆
t = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
P
t1 =
24,1 °C
24,1 °C
t2 =
23,5 °C
21,5 °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)
1,578
1,949
63,4
95
Class B
Main transf. pr. winding (254,4V)
1,578
2,059
79,4
95
Class B
Sub transf. pr. winding (207V)
825
955
43,3
85
Class E
Sub transf. pr. winding (254,4V)
825
1030
64,9
85
Class E
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
Main transformer chassis
33,6
42,6
95
Sub transformer core
40,8
56,7
85
Line filter, coil (sec.)
53,3
66,4
85
Line filter, core (sec.)
52,6
64,5
85
Diode, D452 body
40,6
48,7
-
PWB near D452
42,1
50,4
85
D452 heat-sink
48,7
57,8
-
Diode, D501 body
31,0
38,9
-
PWB near D501
29,3
36,8
85
Diode, D507 body
42,6
51,1
-
PWB near D507
40,7
49,1
85
Diode, D512 body
41,8
53,0
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PWB near D512
64,7
75,8
85
Capacitor, C458 body
26,4
34,2
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Capacitor, C504 body
23,7
32,3
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Capacitor, C511 body
25,9
35,4
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Capacitor, C520 body
31,7
42,3
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IC501 body
42,0
70,5
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IC501 heat-sink
40,5
63,0
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