6.6. PROCEDURE TO DETERMINATE THE NECESSARY TRANSVERSAL SECTION
IN CABLE EXTENSION
Next checks must be done. Take the highest section of cable.
1.
cos.phi = 0,8 trough the frequency and voltage chart.
For example:
en
2.
table).
For example:
VEAF
10
The ohmic and inductive resistance of the cable with a 5% permitted loss of voltage,
Nominal voltage:
Nominal current:
Cable length:
100 m
Consulting the chart: Current x Length =10x100=1000 Am
Obtained section of 4 mm
SECCIÓN DE LA LÍNEA EN mm
25
16
10
6
4
2,5
1,5
0
1000
INTENSIDAD NOMINAL X LARGO DE LÍNEA (A m)
Permitted heating for the cable according to VDE (minimum required transversal section
For 10 A, according to the table, for 15 A or less. The section must be 1 mm.
Secciones mínimas según normas VDE
2
) Carga máx. (A)
Sección (mm
1
1,5
2,5
4
6
10
16
25
Therefore, CHOSEN SECTION = 4 mm. ¡IMPORTANT!: chose always the highest
transversal section of the two checks.
HIGH FRECUENCY EXTERNAL VIBRATORS
1~ 220 V 50 Hz
10 A
2
.
2
115 V
230 V
2000
3000
4000
5000
Fusible máx. (A)
15
18
10/3-16/1-
26
34
44
61
82
108
380 V
6000
10
20
25
35
50
63
80