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NOTES
:
Wiring between generator and electrical appliances
1.
Allowable current of cable
Use a cable with an allowable current that is higher than the rated input current of the load (electrical
appliance). If the input current is higher than the allowable current of the cable used, the cable will
become excessively heated and deteriorate the insulation, possibly burning it out. Table
7-2
shows
cables and their allowable currents for your reference.
2.
Cable length
If a long cable is used, a voltage drop occurs due to the increased resistance in the conductors de-
creasing the input voltage to the load (electtical product). As
a
result, the load can be damaged. Table
7-2
shows
voltage drops per
100
meters
of
cable.
i
Sectional
mm
current
/
A
area
/
mm3
Resistance
wire
e,ement
No’
Allowable
15A 12A lOA
8A
SA
3A
1A
ohm”00m
Voltage
drop
per
100
m
0.75
5V
4V
3.5V
2.5V
2V
1V
0.332
70
J
0.32
35
5.5
7.5
V
6.5
U
5
V
4
V
2.5
V
1.5
V
0.517
45
I
0.32
23 3.5
15V 12V
1OV
8V
5.0V
3V
1.OV
0.952
37
I
0.26 17
2.0
1av
15~ 12~ 7.5~
sv
1.5~
1.486
,50
/
0.18
12
1.25
12.5
V
8
V
2.5
V
2.477
30 10.18
7
Table.
7-2
(
1
Voltage drop indicates as V=
100
xRxIxL
R
means resistance
(
SZ
/
100
m)
on
the above table.
I
means electric current through the wire
(A).
L
means the length
of
the wire (m).
The length
of
wire indicates round length, it means twice the length from generator to electrical
tools.
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22-