Read Harman Kardon AVR 8500 (serv.man2) EMC - CB Certificate online
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IEC 60065, 6th edition : 1998
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- Page 11 of 44 -
Order No.
200211174
HEATING (continued)
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Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
IC451 heat-sink
45,8
64,5
-
IC534 body
43,5
52,6
-
IC534 heat-sink
43,3
54,5
-
PWB near IC534
43,1
53,9
85
IC536 body
48,3
64,5
-
IC537 heat-sink
38,2
60,9
-
IC540 body
40,9
56,1
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TR, QL920 body
46,4
63,6
-
TR, QL921 body
48,5
67,4
-
TR, QL922 body
49,2
68,5
-
TR, QL923 body
49,3
68,2
-
PWB near QL923
43,3
58,0
85
Main heat-sink (L)
43,1
58,4
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Main heat-sink (R)
39,1
49,5
-
Appliance inlet body
17,5
23,2
60
Top enclosure above main heat-sink
30,3
40,6
65 **)
Top enclosure above main transformer
27,5
35,5
65 **)
Switch button
0,8
0,6
50
Comments
No other parts were observed to create any hazard due to temperature rise.
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*) Temperature rise limits for Singapore is 10K less.
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**) Directly covering part for heat-sink and transformer. The top cover is supplied with
ventilation openings covering most of the top cover. This indicate emission of heat from
internal parts and the opening area is therefore not likely to be touched during normal
use. Based on this the temp. rise is accepted also for tropical climates.
ventilation openings covering most of the top cover. This indicate emission of heat from
internal parts and the opening area is therefore not likely to be touched during normal
use. Based on this the temp. rise is accepted also for tropical climates.
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