11. APPENDIX
2
The application of the single-core insulating cable
section mm
2
The application of the multi-core insulating cable
section mm
1. The choice of the electric cable
The choice of the electric cable depends on the allowable current of the cable
and the distance between the load and the generator. And the cable section
should be big enough.
If the current in the cable is bigger than the allowable current, it will become over
hot and the cable will be burnt. If the cable is long and thin, the input voltage of
the electric appliance will be not enough, causing that the generator doesn't start.
In the following formula, you can calculate the value of the potential "e".
The relations among of the allowable current, and length, section of the Insulating
cable (single core, multi-core) are as follow:
(Presume that the use voltage is 220V and the potential is below 10V.
Potential (v)
=
Current (A)
3
Length
Section area
1
58
50A
100A
200A
300A
Current
L e n g t h
beneath
75m
125
200
150
50m
100m
8
22
60
100
14
30
60
100
38
60
125
200
22
38
60
100
22
50
80
125
30
50
100
150
50A
100A
200A
300A
Current
75m
125
200
150
50m
100m
14
38
38
2
60
2
14
38
38
2
60
2
22
38
38
2
60
2
22
50
50
2
60
2
30
50
50
2
80
2
38
60
50
2
100
2
L e n g t h
beneath
-35-
