Read Harman Kardon DVD 47 EMC - CB Certificate online
- IEC 60065, 6th edition : 1998 -
- Page 5 of 13 -
Order No.
50378
HEATING
Δt = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
R1
P
t1 =
24,6 °C
24,6 °C
t2 =
24,2 °C
23,6 °C
Test voltage
207 V
254,4 V
Winding
R1/
Ω R2/Ω
Δt measured
Δt allowed
Insulation
class
class
Transformer, T901 winding
- - - 70 Class
A
(See table below)
Other measured parts
Δt measured
at 207,0V
at 207,0V
Δt measured
at 254,4V
at 254,4V
Δt allowed *)
DVD Spindle motor case
12,1
12,3
-
Diode, D904 body
14,1
14,4
-
E. Capacitor, C903 body
11,9
12,5
-
Q901 body
21,5
25,6
-
Line filter, LF91 coil
12,6
12,7
70
PWB near D904
14,2
14,6
85
PWB near Q901
22,6
26,0
85
Transformer, T901 coil
27,5
28,6
70
Transformer, T901 core
23,8
24,9
70
PWB near D920
28,4
29,4
85
Appliance inlet body
7,7
8,1
60
Top enclosure above SMPS power
4,7
5,2
40
Comments
No other parts were observed to create any hazard due to temperature rise.
P
*) Temperature rise limits for Singapore is 10K less. Comply
P
**) Tested in a test box under blocked opening condition of the apparatus.
P
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