Read Harman Kardon AVR 507 (serv.man2) EMC - CB Certificate online
-
IEC 60065, 6th edition : 1998
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- Page 10 of 38 -
Order
No.
11152
HEATING
∆
t = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
P
t1 =
27,5 °C
27,5 °C
t2 =
25,5 °C
25,5 °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)
1,821
2,193
55,5
85
Class E
Sub transf. pr. winding (207V)
2892
3233
32,9
85
Class E
Main transf. pr. winding (254,4V)
1,821
2,271
66,7
85
Class E
Sub transf. pr. winding (254,4V)
2892
3383
46,5
85
Class E
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *
Main transformer core
41,2
51,1
85
Sub transformer core
26,3
35,4
85
Diode, D991 body
42,7
48,6
-
Diode, D992 body
35,5
39,7
-
D992
heat-sink
36,2 40,5 -
PWB near D992
34,3
38,9
85
TR, Q803 body
48,7
60,4
-
TR, Q804 body
32,8
42,4
-
TR, Q854 body
46,6
60,1
-
PWB near Q804
43,3
55,4
85
E. Capacitor, C909 body
17,9
22,2
-
E. Capacitor, C929 body
34,8
43,3
-
IC91
heat-sink
47,6 63,6 -
Resistor, R810 body
36,4
44,6
-
Main
heat-sink
34,4 47,0 -
Fan body (on heat-sink)
29,6
37,7
60
Fan body (on back cover)
21,6
26,2
60
Power cord bushing
16,9
21,6
60
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