Harman Kardon AVR 3550 (serv.man13) EMC - CB Certificate ▷ View online
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IEC 60065, 6th edition : 1998
-
- Page 9 of 40 -
Order No.
200219130
HEATING
∆
t = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
P
t1 =
26,0 °C
26,0 °C
t2 =
28,1 °C
26,3 °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)
2,997
3,820
69,4
95
Class B
Sub transf. pr. winding (207V)
2655
3148
46,3
85
Class E
Main transf. pr. winding (254,4V)
2,997
3,960
83,4
95
Class B
Sub transf. pr. winding (254,4V)
2655
3288
61,8
85
Class E
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
Main transformer core
59,0
71,5
95
Sub transformer core
45,0
57,4
85
Diode, D909 body
48,4
55,4
-
PWB near D909
45,7
52,4
85
Capacitor, C915 body
25,6
30,5
-
Capacitor, C917 body
34,2
43,1
-
Capacitor, C923 body
38,0
45,4
-
IC91 body
47,0
67,9
-
IC91 heat-sink
44,3
62,7
-
Power TR, Q661 body
57,5
74,3
-
PWB near Q661
51,8
65,4
85
Bias TR, Q611 body
51,5
65,7
-
Resistor, R654 body
36,4
43,1
-
Main heat-sink
51,9
65,8
-
Power cord bushing
25,4
29,9
60
Top enclosure above main transformer
27,0
32,9
65 **)
Top enclosure above main heat-sink
24,6
31,3
65 **)
Power switch button
1,3
0,6
50
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IEC 60065, 6th edition : 1998
-
- Page 10 of 40 -
Order No.
200219130
HEATING (continued)
P
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. 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.
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
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)
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IEC 60065, 6th edition : 1998
-
- Page 11 of 40 -
Order No.
200219130
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
Class II 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
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
-
IEC 60065, 6th edition : 1998
-
- Page 12 of 40 -
Order No.
200219130
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
No parts at 35-71V(peak) a.c. or 60-120V d.c.
N
v
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
No parts at 35-71V(peak) a.c. or 60-120V d.c.
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
N
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
Reinforced insulation, three layers
any two which meet 10.3
any two which meet 10.3
N
8.9
Primary wiring :
Adequate insulation between internal
hazardous live conductors and
accessible parts
Adequate insulation between internal
hazardous live conductors and
accessible parts
Double insulated.
P
Secondary wiring :
Adequate insulation between internal
hazardous live parts and conductors
connected to accessible parts
Adequate insulation between internal
hazardous live parts and conductors
connected to accessible parts
Single insulated but safely anchored.
P
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