HK 3770 (serv.man2) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 22

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Report No 248607.
 
  
 
 
 
 
 
IEC 60065 
Clause 
Requirement + Test 
Result - Remark 
Verdict
 
TRF No. IEC60065K 
 
14.3.4.3 
Separating transformers with at least basic insulation Windings of class II 
construction used. 
N/A 
14.3.5 
Insulation between HAZARDOUS LIVE parts and 
ACCESSIBLE parts 
 
P 
14.3.5.1 
Class II transformers have adequate insulation 
between hazardous live parts and accessible parts 
(double or reinforced insulation)  
Double or reinforced insulation  
between hazardous live 
windings and accessible 
conductive parts. 
P 
 
Coil formers and partition walls > 0,4 mm  
> 0,4 mm 
P 
14.3.5.2 
Class I transformers have adequate insulation 
between hazardous live parts and accessible 
conductive parts or those conductive parts or 
protective screens connected to a protective earth 
terminal  
Windings of class II 
construction used. 
N/A 
 
Winding wires connected to protective earth have 
adequate current-carrying capacity  
 
N/A 
14.4 
High voltage components  
No high-voltage components. 
N/A 
 
High-voltage components and assemblies: U > 4 kV 
(peak) separately approved  
 
N/A 
 
Component meets category V-1 of IEC 60707  
 
N/A 
14.4.1 
High voltage transformers and multipliers tested as 
part of the submission  
 
N/A 
14.4.2 
High voltage assemblies and other parts tested as 
part of the submission  
 
N/A 
14.5 Protective 
devices 
 
 
P 
 
Protective devices used within their ratings  
Thermal cut-outs and fuse. 
P 
 
External clearances and creepage distances meet 
requirement of clause 13 for the voltage across the 
device when opened  
Certified protective devices 
applied (thermal cut-outs and 
fuse) 
See appended table, list of 
critical components. 
P 
14.5.1.1 
a) Thermal cut-outs separately approved  
TS92 thermal cut-out is 
approved component 
according to IEC 60730-1. 
See appended table, list of 
critical components. 
P 
 
b) Thermal cut-outs tested as part of the submission  
N/A 
14.5.1.2 
a) Thermal links separately approved  
No thermal links 
N/A 
 
b) Thermal links tested as part of the submission  
 
N/A 
14.5.1.3 
Thermal devices re-settable by soldering  
No thermal device re-settable 
by soldering. 
N/A 
14.5.2.1 
Fuse-links in the mains circuit according to IEC 
60127  
Fuse is approved according 
to IEC 60127. 
See appended table, list of 
critical components. 
P 
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