DPR 1005 (serv.man13) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 17

 - 

IEC 60065, 6th edition : 1998

 - 

- Page 13 of 41 - 

 

 

   

 Order 

No. 

26088

 

 

 

 

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  

No parts at 35-71V a.c. or 60-120V d.c. 

 

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  

No parts at 35-71V a.c. or 60-120V d.c. 

 

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)    

Insulation in reactor PT01 (before mains fuse),  
partition walls 

≥ 0,4 mm between W1 and W2 windings, 

meet 10.3. 

 

Reinforced insulation 

≥ 0,4 mm 

(mm)    

Insulation in transformers and reactor, 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  

T102, T103, T201, T202 Transformers with thin sheet 
insulation, ref. 14.3. 

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.