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4.5.3
TABLE 3 correction factors for different cable insulating materials :
Insulating material
PVC
Natural or Synthetic Rubber
Silicone Rubber
4.5.4
TABLE 4 B2, C and E correction factors for cable grouping :
Number of cables
1
2
4
6
9
4.5.5
Calculation
The total current included for usint Table 1 should be the maximum rated current for the machine divided by the prod-
uct of the different correction factors. Other correction factors may also be applied ; consult 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 insuant : Table 3 gives a correction factor of 0.92.
The cable is fixed directly to the wall (Column C), with 2 cables side by side. The Table 4 gives a correction factor of
0.85.
Total current : _____60A______=84A
...........................0.91x0.92x0.85..............
Taking Column C in Table 1 (wall fixing), we obtain a minimum cable section of : 3x 25 mm²
4.5.6
Electrical Standard characteristics for IC6 48xx FFS
Machine
Heating
Type
4819
Steam / Gas
4819
Electric
4825
Steam / Gas
4825
Electric
4832
Steam / Gas
4832
Electric
Installation manual
Maximum working temperature range
70 ° C (158° F)
60° C (140° F)
120° C (248° F)
B2
Seated in Cable Duct
1.00
0.80
0.65
0.57
0.50
Supply Voltage
Installed Power
2.9 kW
380/415V 3+E 50–
60Hz
35.75 kW
380/415V 3+E 50–
60Hz
380/415V 3+E 50–
2.9 kW
60Hz
46.10 kW
380/415V 3+E 50–
60Hz
380/415V 3+E 50–
3.2 kW
60Hz
56.75 kW
380/415V 3+E 50–
60Hz
Correction factor
C
Wall fixing or Cable Trough
1.00
0.85
0.75
0.72
0.70
Rated Intensity
Connection Cable
5 A
4 X 2.5 mm²
52 A
4 x 16 mm²
5 A
4 X 2.5 mm²
67 A
4 x 16 mm²
5 A
4 X 2.5 mm²
82 A
4 x 25 mm²
1
0.92
1.60
E
Cable Tray
1.00
0.87
0.78
0.75
0.73
Main Circuit
Section
Breaker or
Fuse
3 x 16 A
3 x 63 A
3 x 16 A
3 x 80 A
3 x 16 A
3 x 100 A
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