DVD 25 - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 16

Read Harman Kardon DVD 25 EMC - CB Certificate online

 
IEC 60065, 6th edition : 1998
 - 
- Page 12 of 32 - 
 
 
   
 
Order No.  200225249 
 
 
9.1.6 
No shock hazard due to stored 
charge on withdrawal of the mains 
plug; voltage (V) after 2 s    
C = 0.2uF. Discharge resistor 390k.  
Calculated discharge of stored charge: 
 0.2uF x 390k x 5 = 390ms 
 
If C is not greater than 0,1 
µ
F no test 
needed  
C>0.1uF 
9.1.7 
Enclosure sufficiently resistant to external force 
 
 
Test probe 11 of IEC 61 032 for 10 s 
(50 N)  
Enclosure does not become live. 
 
Test hook of fig. 4 for 10 s (20 N)  
No live part accessible 
 
Conductive enclosures : 
30 mm diameter test tool for 5 s 
(100 or 250 N)    
100N test. No damage. 
9.2 
No hazard 2s after removing a cover 
by hand  
Cover adequately secured by screws. 
10 
INSULATION REQUIREMENTS  
 
10.1 
Insulation resistance (M
) at least 
2 M
 min. after surge test for basic 
and 4 M
 min. for reinforced 
insulation    
 
10.2 
Humidity treatment 48 h or 120 h    
 Tested for both 48 and 120hours 
10.3 
Insulation resistance and dielectric 
strength   
 
 
Tested insulation 
Insulation  
Test voltage 
Voltage test 
Remarks 
 
resistance 
based on the 
(r.m.s.value) 
 
 
     (M Ohm) 
operating 
 
 
 
Meas- 
Min. 
voltage 
 
 
 
ured 
required 
(V) 
(V) 
 
Between the poles 
 
 
For rated mains    
 
of the circuit    
:
 
>10 
 2 
voltages 
 150V 
1000V 
Pass 
directly connected 
 
 
r.m.s, 1410V pk 
 
 
to the supply 
 
 
 
 
 
mains 
 
 
For rated mains 
 
 
 
>10
 
 2 
voltages 
 150V 
 1500V 
 Pass 
 
 
 
r.m.s, 2120V pk 
 
 
Basic insulation 
:
 
 
 2 
Curve A,
 
 
 
  
 
 
 
Fig. 7 
 
 
Supplementary 
 
 
 
 
 
insulation   
 
:
 
 
 2 
Curve A,
 
 
 
  
 
 
 
Fig. 7 
 
 
Reinforced 
 
 
 
 
 
insulation        
:
 
>10 
 4 
Curve B,
 
 
 3000V 
 Pass 
 
 
 
Fig. 7 
 
 
 
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