Electrolux IC4 4819 FFS Service Manual page 36

10
• Table 3 (correction factors for different cable insulting materials)
Insulating material
PVC
Natural or synthetic rubber
Silicone rubber
• Table 4 (B2, C and E correction factors for cable grouping)
Number of cables
1
2
4
6
9
The total current included for using Table 1 should be the maximum rated current for the
machine divided by the product of the different correction factors.
Other correction factors may also be applied ; consult the cable manufacturers.
Calculation : Example :
• The machine has a rated current of 60 A.
• The ambient temperature is 45 °C ; Table 2 gives a correction factor of 0.91.
• Rubber cable insolent : Table 3 gives a correction factor of 0.92.
• The cable is fi xed directly to the wall (Column C), with 2 cables side by side. Table 4 gives a
correction factor of 0.85.
Total current :
Taking Column C in Table 1 (wall fi xing), we obtain a minimum cable section of : 3 x 25 mm².
8
Installation
working temperature range
B2
Seated in cable duct
1,00
0,80
0,65
0,57
0,50
60A
= 84 A
0,91 x 0,92 x 0,85
Max.
70 °C
60 °C
120 °C
C
Wall fi xing or cable
trough
1,00
0,85
0,75
0,72
0,70
Service
Manual
Correction factor
1,00
0,92
1,60
E
Cable tray
1,00
0,87
0,78
0,75
0,73
04102011/GB
51.2010