Read Harman Kardon SUB-TS 7 EMC - CB Certificate online
page 21 of 31
Ref.No.:401597
IEC 60065
Clause
Requirement - Test
Result - Remark
Verdict
TRF No.: I60065__C
7.1
TABLE: temperature rise measurements
P
Power consumption in the OFF/Stand-by
Position of the functional switch (W) ..................... : 0 W in 0FF-position
Operating conditions
254.4V, 1/8 of the max. non-clipping output power using the pink noise signal acc. to 4.1.6 .
Input signal connected to ’Line Level in L/R’
Un (V)
In (A)
Pn (W)
Pout (W)
254.4
0.43
79
21
Loudspeaker impedance (
Ω) ................................ : 4Ω
Several
loudspeaker
systems
-
Marking of loudspeaker terminals
High Level in/out
monitored point:
dT (K)
Permitted dT (K)
Supply wiring insulation (Not under mechanical stress.)
27
60
Mains switch
26
60
Mains fuse
19
60
Iron core mains transformer.
51
—
Transformer support (rubber)
51
60
PCB 63
85
Buttons (plastic)
18
50
Enclosure (wood)
24
60
Enclosure (metal) near knobs.
38
40
Heat Sink, external (metal)
40
40
Knobs (plastic)
18
50
Winding temperature rise measurements
Ambient temperature t1 (ºC) ................................. : 21
Ambient temperature t2 (
°C) ................................. : 22
temperature rise dT of winding:
R
1
(
Ω)
R
2
(
Ω)
dT (K)
permitted
dT (K)
insulation
class
Transformer Primary winding
9.267
11.498
61
85
E
Transformer Secondary winding (Yellow)
0.701
0.855
55
85
E
Transformer Secondary winding (Red)
1.252
1.528
55
85
E
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