Procedure To Determinate The Necessary Cross Section In Cable Extension - Enarco VET Manuel D'instructions

4.5 PROCEDURE TO DETERMINATE THE NECESSARY CROSS SECTION IN CABLE
EXTENSION
Do the following verifications and take the highest section of cable:
1.
voltage of 5%, cosphi=0.8 trough the frequency and voltage curve
I.e.
2.
section table required).
I. e. For 10 A, according to table for 15 A or less, the section is of 1 mm.
MONO-PHASE AND THREE-PHASE EXTERNAL VIBRATORS
The ohmic resistance and inductive resistance of the cable with the permitted loss of
Voltage nominal:
Nominal current:
Cable length:
Entering the curve with the product: Intensity x Length=10x100=1000 Am
We obtain a 4 mm section
The permitted heating of the cable according to VDE standard (minimum transversal
Therefore, the section chosen is equal to 4 mm, Always choose the highest transversal
section of the two verifications
Minimum sections according to VDE standards
Section (mm
1
1,5
2,5
4
6
10
16
25
Therefore, Chosen section = 4 mm, always choose the larger cross section of the two
checks.
1- 220 V 50 Hz
10 A
100 m
2
Max. load (A) Maximun fuse. (A)
)
15
18
26
34
44
61
82
108
10
10/3-16/1-
20
25
35
50
63
80
VET VEM
en
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