DOWNLOAD Harman Kardon AVR 4550 Service Manual ↓ Size: 1.85 MB | Pages: 49 in PDF or view online for FREE

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AVR 4550
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49
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1.85 MB
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EMC - CB Certificate
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Device
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avr-4550.pdf
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Harman Kardon AVR 4550 EMC - CB Certificate ▷ View online

 - 
IEC 60065, 6th edition : 1998
 - 
- Page 11 of 39 - 
 
 
   
 Order 
No. 
200245266
 
 
 
 
8 CONSTRUCTIONAL 
REQUIREMENTS WITH REGARD 
TO THE PROTECTION AGAINST 
ELECTRIC SHOCK   
 
8.1 
Conductive parts covered by 
lacquer, paper, untreated textile 
oxide films and beads etc. 
considered to be bare   
Considered 
8.2 
Shock hazard when changing 
voltage setting device, fuse-links or 
handling drawers etc.   
Operation “By hand” not possible 
8.3 
Insulation of hazardous live parts not 
provided by hygroscopic material   
No hygroscopic materials 
8.4 
Risk of electric shock from 
accessible parts, including when 
covers are removed by hand. 
No cover removable by hand. 
8.5 
Class I equipment 
 
Class II equipment 
 
Basic insulation between hazardous 
live parts and earthed accessible 
parts  
 
 
Resistors bridging basic insulation 
complying with 14.1 a)   
 
 
Capacitors bridging basic insulation 
complying with 14.2.1 a)   
 
 
Basic insulation bridged by 
components complying with 14.3.4.3 
 
 
Protective earth contact 
 
8.6 
Class II equipment and Class II 
constructions within Class I 
equipment 
 
 
 
Reinforced or double insulation 
between hazardous live parts and 
accessible parts   
Double/Reinforced insulation complies with requirements 
specified in clause 10 and 13. 
 
Components bridging reinforced or 
double insulation complying with 
14.1 a) or 14.3   
The apparatus has an isolating transformer 
 
Basic and supplementary insulation 
each being bridged by a capacitor 
complying with 14.2.1 a)   
 
 
Reinforced or double insulation 
being bridged by 2 capacitors in 
series complying with 14.2.1 a)   
 
 - 
IEC 60065, 6th edition : 1998
 - 
- Page 12 of 39 - 
 
 
   
 Order 
No. 
200245266
 
 
 
 
 
Reinforced or double insulation 
being bridged by a single capacitor 
complying with 14.2.1 b)   
 
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   
 
 
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   
 
 
Separation by Class II isolating 
transformer  
Isolating transformer according to 14.3.2.(Class II) 
 
Separation by Class I transformer   
 
 
Separation by earthed conductive 
part  
 
8.8 
Basic or supplementary insulation 
 0,4 mm (mm)   
 
 
Reinforced insulation 
 0,4 mm 
(mm)    
Insulation in transformer, ref. 14.3. 
 
Thin sheet insulation used inside the 
enclosure
 
 
 
Basic or supplementary insulation, at 
least two layers, each meeting 10.3 
 
 
Basic or supplementary insulation, 
three layers any two of which meet 
10.3  
 
 
Reinforced insulation, two layers 
each of which meet 10.3   
 
 
Reinforced insulation, three layers 
any two which meet 10.3   
Main transformer insulation 
8.9 
Primary wiring : 
Adequate insulation between internal 
hazardous live conductors and 
accessible parts   
Double insulated. 
 
Secondary wiring : 
Adequate insulation between internal 
hazardous live parts and conductors 
connected to accessible parts   
Single insulated but safely anchored. 
 
8.10 
Class II apparatus : 
Double insulation between 
conductors connected to the mains 
and accessible parts   
Double insulated, tested according to 8.9. and 10.3. 
 - 
IEC 60065, 6th edition : 1998
 - 
- Page 13 of 39 - 
 
 
   
 Order 
No. 
200245266
 
 
 
 
 
Class II apparatus : 
Double insulation between 
conductors connected to accessible 
parts and the mains   
 
8.11 
Detaching of wires 
 
 
 
No undue reduction of creepage or 
clearance distances if wires become 
detached  
Primary wires connected with multi-contact-housing. 
 
Vibration test carried out   
Vibration test considered not necessary   
8.12 
Adequate cross-sectional area of 
internal wiring to mains socket-
outlets  
Socket outlet fuses provided 
8.13 
Adequate fastening of windows, 
lenses, lamp covers etc. (push or 
pull test 20 N for 10 s)   
Adequately fastened. 
 
8.14 
Adequate fastening of covers (push 
or pull test 50 N, for 10 s)   
Covers adequately fastened with screws. 
 
8.15 
No risk of damage to the insulation 
of internal wiring due to hot parts or 
sharp edges   
Wires safely anchored away from parts with high 
temperature. 
 
8.16 
Apparatus designed to be supplied 
by special supply apparatus only.   
 
 
ELECTRIC SHOCK HAZARD 
UNDER NORMAL OPERATING 
CONDITIONS  
 
9.1.1 
Touch current expressed as voltages 
U1 and U2 in Annex D   
 
Location Measured 
U1 
V (peak) 
Measured U1 
V (DC) 
Measured U2 
V (peak) 
Limits : 
U1 Max 35V (peak) 
U1 Max 1.0V (DC) 
U2 Max 0.35V 
(peak) 
Mains pole 1 - RCA terminal 
< 0,46 V 
< 0,02 V 
Pass 
Mains pole 2 - RCA terminal 
< 0,50 V 
< 0,03 V 
Pass 
 
 
 
 
 
 
 
 
 
 
 
Discharge not exceeding 45 
µ
C  
No part or contact of a terminal with stored voltages 
between 60V - 15kV 
 
Energy of discharge not exceeding 
350 mJ   
No part or contact of a terminal with stored voltages 
exceeding 15kV 
 
Test with test finger according to test 
probe B of IEC 61 032 (20N) 
No access to hazardous live parts 
 
 - 
IEC 60065, 6th edition : 1998
 - 
- Page 14 of 39 - 
 
 
   
 Order 
No. 
200245266
 
 
 
 
 
For class II constructions, test with 
test probe 13 of IEC 61 032 (3N) 
No access to hazardous live parts 
 
 
Clearances to circuits exceeding 
1000V a.c. or 1500V d.c.   
No voltages exceeding 1000V AC or 1500V DC. 
9.1.2 
No hazardous live shafts of knobs, 
handles or levers   
No live shafts, handles or levers 
9.1.3 
Ventilation holes tested by means of 
4 mm x 100 mm test pin   
No access for the test pin. 
 
9.1.4 
Terminal devices tested with 
1 mm x 20 mm test pin (10 N); test 
probe 16 of IEC 61 032   
Does not reach hazardous live parts 
 
 
Terminal devices tested with 
1 mm x 100 mm straight wire (1 N); 
test probe D of IEC 61 032   
Does not reach hazardous live parts 
 
9.1.5 
Pre-set controls tested with 
2.5 mm x 100 mm test pin (10 N); 
test probe C of IEC 61 032   
No preset controls 
 
9.1.6 
No shock hazard due to stored 
charge on withdrawal of the mains 
plug; voltage (V) after 2 s      
Measured voltage after 2 sec.: < 4V peak. 
 
If C is not greater than 0,1 
µ
F no test 
needed  
 
9.1.7 
Enclosure sufficiently resistant to 
external force 
 
 
 
Test probe 11 of IEC 61 032 for 10 s 
(50 N)   
Test with test finger results in no hazard. 
 
 
Test hook of fig. 4 for 10 s (20 N)   
Test with test hook results in no hazard. 
 
Conductive enclosures : 
30 mm diameter test tool for 5 s (100 
or 250 N)      
Test with 100N results in no damage. 
9.2 
No hazard 2s after removing a cover 
by hand   
No cover removable by hand 
 
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