HK 3480 (serv.man2) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 47

 

 

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Report No.  65743 

 
 

Type of 

Insulation 

Position/ 
Location 

Position/ 
Location 

Working  

Voltage 

Clearance 

13.3.2 

Creepage dist. 

13.4

 

Comm. 

 1  2 

Up 

Urms

Req. 

Measu.

Req. 

Measu. 

 

Basic Live  Neutral  326V 

230V 

2,0mm 

4,0mm 2,5mm 

4,0mm 

Reinforce Primary 

Chassis 

326V  230V  4,0mm  7,0mm 5,0mm > 

7,0mm 2) 

Reinforce Primary 

Chassis 

326V  230V  4,0mm  7,0mm 5,0mm > 

7,0mm 3) 

Reinforce Primary 

Chassis 

326V  230V  4,0mm  6,0mm 5,0mm > 

6,0mm 4) 

Reinforce Primary 

Chassis 

326V  230V  4,0mm  6,7mm 5,0mm 6,7mm  5) 

Reinforce Primary 

Secondary  382V 270V 4,0mm 6,0mm 5,6mm 6,0mm  6) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: U in Volt, Clearances/Creepage Distances in mm, Comm. = Comment 

Comments: 

1)  Measured on PCB before mains fuse (F601). 
2)  Measured between primary pcb trace for socket-outlet and near metal chassis (back cover).
3)  Measured between primary solder pin and metal bottom chassis. 
4)  Measured between primary solder pin and metal mounting guard for transformer. 
5)  Measured on main pcb from pri. pcb trace to metal chassis connected sec. pcb trace. 
6)  Measured on main pcb from pri. pcb trace to near secondary pcb trace.