Harman Kardon AVR 7500 (serv.man9) EMC - CB Certificate ▷ View online
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IEC 60065, 6th edition : 1998
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- Page 9 of 43 -
Order No.
200211175
HEATING
∆
t = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
P
t1 =
24,1 °C
24,1 °C
t2 =
23,5 °C
21,5 °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)
1,578
1,949
63,4
95
Class B
Main transf. pr. winding (254,4V)
1,578
2,059
79,4
95
Class B
Sub transf. pr. winding (207V)
825
955
43,3
85
Class E
Sub transf. pr. winding (254,4V)
825
1030
64,9
85
Class E
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
Main transformer chassis
33,6
42,6
95
Sub transformer core
40,8
56,7
85
Line filter, coil (sec.)
53,3
66,4
85
Line filter, core (sec.)
52,6
64,5
85
Diode, D452 body
40,6
48,7
-
PWB near D452
42,1
50,4
85
D452 heat-sink
48,7
57,8
-
Diode, D501 body
31,0
38,9
-
PWB near D501
29,3
36,8
85
Diode, D507 body
42,6
51,1
-
PWB near D507
40,7
49,1
85
Diode, D512 body
41,8
53,0
-
PWB near D512
64,7
75,8
85
Capacitor, C458 body
26,4
34,2
-
Capacitor, C504 body
23,7
32,3
-
Capacitor, C511 body
25,9
35,4
-
Capacitor, C520 body
31,7
42,3
-
IC501 body
42,0
70,5
-
IC501 heat-sink
40,5
63,0
-
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IEC 60065, 6th edition : 1998
-
- Page 10 of 43 -
Order No.
200211175
HEATING (continued)
P
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
IC504 body
50,6
71,9
-
IC504 heat-sink
46,4
64,5
-
IC506 body
52,8
78,1
-
IC506 heat-sink
50,4
73,0
-
IC510 body
58,9
80,7
-
IC510 heat-sink
54,8
75,1
-
IC514 body
29,8
41,4
-
IC514 heat-sink
28,6
39,2
-
PWB near IC514
27,6
38,4
85
TR, QC916 body
43,4
59,0
-
TR, QC917 body
43,7
59,1
-
TR, QC921 body
45,4
61,8
-
TR, QC922 body
44,0
60,1
-
PWB near QC922
34,1
46,4
85
Main heat-sink (L)
45,1
61,4
-
Power cord bushing
18,1
25,8
60
Top enclosure above main heat-sink
26,6
37,5
65 **)
Top enclosure above main transformer
26,6
34,4
65 **)
Switch button
0,3
0,4
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
**) 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.
P
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IEC 60065, 6th edition : 1998
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- Page 11 of 43 -
Order No.
200211175
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)
8
CONSTRUCTIONAL
REQUIREMENTS WITH REGARD
TO THE PROTECTION AGAINST
ELECTRIC SHOCK
REQUIREMENTS WITH REGARD
TO THE PROTECTION AGAINST
ELECTRIC SHOCK
P
8.1
Conductive parts covered by lacquer,
paper, untreated textile oxide films
and beads etc. considered to be
bare
paper, untreated textile oxide films
and beads etc. considered to be
bare
Considered
P
8.2
Shock hazard when changing
voltage setting device, fuse-links or
handling drawers etc.
voltage setting device, fuse-links or
handling drawers etc.
Operation “By hand” not possible
N
8.3
Insulation of hazardous live parts not
provided by hygroscopic material
provided by hygroscopic material
No hygroscopic materials
N
8.4
Risk of electric shock from
accessible parts, including when
covers are removed by hand.
accessible parts, including when
covers are removed by hand.
No cover removable by hand.
N
8.5
Class I equipment
N
Basic insulation between hazardous
live parts and earthed accessible
parts
live parts and earthed accessible
parts
N
Resistors bridging basic insulation
complying with 14.1 a)
complying with 14.1 a)
N
Capacitors bridging basic insulation
complying with 14.2.1 a)
complying with 14.2.1 a)
N
Basic insulation bridged by
components complying with 14.3.4.3
components complying with 14.3.4.3
N
Protective earth contact
N
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IEC 60065, 6th edition : 1998
-
- Page 12 of 43 -
Order No.
200211175
8.6
Class II equipment and Class II
constructions within Class I
equipment
constructions within Class I
equipment
P
Reinforced or double insulation
between hazardous live parts and
accessible parts
between hazardous live parts and
accessible parts
Double/Reinforced insulation complies with requirements
specified in clause 10 and 13.
specified in clause 10 and 13.
P
Components bridging reinforced or
double insulation complying with
14.1 a) or 14.3
double insulation complying with
14.1 a) or 14.3
The apparatus has an isolating transformer
P
Basic and supplementary insulation
each being bridged by a capacitor
complying with 14.2.1 a)
each being bridged by a capacitor
complying with 14.2.1 a)
N
Reinforced or double insulation being
bridged by 2 capacitors in series
complying with 14.2.1 a)
bridged by 2 capacitors in series
complying with 14.2.1 a)
N
Reinforced or double insulation being
bridged by a single capacitor
complying with 14.2.1 b)
bridged by a single capacitor
complying with 14.2.1 b)
N
8.7
Basic insulation between parts at
35 V to 71 V (peak) a.c. or 60 V to
120 V d.c. and accessible parts
35 V to 71 V (peak) a.c. or 60 V to
120 V d.c. and accessible parts
N
Reinforced or double insulation
between circuits operating at
voltages between 35 V and 71 V
(peak) a.c. or between 60 V and
120 V d.c. and hazardous live parts
at higher voltage
between circuits operating at
voltages between 35 V and 71 V
(peak) a.c. or between 60 V and
120 V d.c. and hazardous live parts
at higher voltage
N
Separation by Class II isolating
transformer
transformer
Isolating transformer according to 14.3.2.(Class II)
P
Separation by Class I transformer
N
Separation by earthed conductive
part
part
N
8.8
Basic or supplementary insulation
≥
0,4 mm (mm)
N
Reinforced insulation
≥
0,4 mm
(mm)
Insulation in transformer, ref. 14.3.
P
Thin sheet insulation used inside the
enclosure
enclosure
P
Basic or supplementary insulation,
at least two layers, each meeting
10.3
at least two layers, each meeting
10.3
N
Basic or supplementary insulation,
three layers any two of which meet
10.3
three layers any two of which meet
10.3
N
Reinforced insulation, two layers
each of which meet 10.3
each of which meet 10.3
N
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