HK 3390 - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 41

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Page 35 of 43 -
 
 
 
 
 
 Report 
No. 
98502 
 
 
7.2 
TABLE: softening temperature of thermoplastics 
N/A 
Temperature T of part 
T - normal con-
ditions (
o
C) 
T - fault condi-
tions (
o
C) 
T softening 
(
o
C) 
 
 
 
 
 
 
 
10.3 
TABLE: insulation resistance measurements 
Insulation resistance R between: 
R (MΩ) 
Required R (MΩ) 
Between mains poles (primary fuse disconnected) 
> 100 
Between parts separated by double or reinforced insulation
> 100 
 
 
 
 
10.3 
TABLE: electric strength measurements 
Test voltage applied between: 
Test voltage (V) 
Breakdown 
Mains poles (primary fuse disconnected) 
1500Vac No 
Between parts separated by double or reinforced insulation
3000Vac No 
 
 
 
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