HK 990 (serv.man4) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 14

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Page 13 of 50 
Report No. 902952-1 
 IEC 
60065
Clause 
Requirement – Test 
Result - Remark 
Verdict 
 
 
TRF No.: IEC60065F 
 
TRF Originator: ASTA BEAB 
 
14.3.3 
Constructional requirements (complete appended tables or include manufacturers 
constructional insulation descriptions) 
14.3.3.1 
Clearances and creepage distances comply with 
clause 13 
 
14.3.3.2 
Transformers meet the constructional requirements   
14.3.4.1 
Class II transformers have adequate separation 
between hazardous live parts and accessible parts 
(double or reinforced insulation) 
T1 prim-sec: 3mm 
T2/T3 prim-sec: >15mm 
T4 prim-sec: >20mm 
 
Coil formers and partition walls = 0.4 mm 
T1 bobbin prim-sec: 0.9mm 
T4 bobbin prim-sec: >1.0mm 
T2/T3 three layers of insulating 
tape. 
14.3.4.2 
Class I transformers, with basic insulation and 
protective screening only if all 7 conditions of 
14.3.4.2 are met 
 
N/A 
14.3.4.3 
Separating transformers with at least basic 
insulation 
 
N/A 
14.3.5.1 
Class II transformers have adequate insulation 
between hazardous live parts and accessible parts 
(double or reinforced insulation) 
T4 prim-core: 10mm 
 
Coil formers and partition walls = 0.4 mm 
T4 bobbin prim-core: 0.9mm 
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 
 
N/A 
 
Winding wires connected to protective earth have 
adequate current-carrying capacity 
 
N/A 
14.4 
High voltage components 
 
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 
 
Protective devices used within their ratings 
 
 
External clearances and creepage distances meet 
requirement of clause 13 for the voltage across the 
device when opened 
 
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