Read Harman Kardon AVR 4550 EMC - CB Certificate online
-
IEC 60065, 6th edition : 1998
-
- Page 10 of 39 -
Order
No.
200245266
HEATING (continued)
P
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
Power TR, Q333 body
54,6
63,1
-
PWB near Q333
54,2
61,9
85
Power TR, Q335 body
60,8
70,4
-
Fan body (outer)
29,8
35,4
60
Main
heat-sink
41,1 43,6 -
Appliance inlet body
10,8
14,3
60
Top enclosure above main heat-sink
3,1
3,3
40
Top enclosure above main transformer
1,6
1,6
40
Switch
button
0,2 0,3 50
Comments
No other parts were observed to create any hazard due to temperature rise.
P
*) Temperature rise limits for Singapore is 10K less.
P
7.2
Softening temperature of insulating
material supporting parts
conductively connected to the mains
carrying a current > 0,2 A at least
150
material supporting parts
conductively connected to the mains
carrying a current > 0,2 A at least
150
°
C
No temperature measured during heating test and fault
cond. tests requires this test (7.2) to be performed.
cond. tests requires this test (7.2) to be performed.
N
Tested parts
Temperature
under normal
operating con-
ditions (°C)
Temperature
under fault
conditions
(°C)
Softening
temperature
(°C)
Click on the first or last page to see other AVR 4550 service manuals if exist.