Total TP18001 - Page 19

Approximate Starting
Wattage
Approximate Running
Wattage
Electric Fence, 25 miles 250 250
Milk Cooler 1800 1100
Milker (vacuum pump,
2hp)
2300 1000
Portable Heater (kerosene, diesel fuel)
50,000 BTU 600 400
90,000 BTU 725 500
150,000 BTU 1000 625
Battery Charger
15 amp 380 380
60 amp with 250-amp
boost
1500/5750 1500/5750
Farm Equipment
VOLTAGE DROP IN ELECTRIC EXTENSION CORDS
When a long electric extension cord is used to connect an appliance or tool to the
generator, a certain amount of voltage drop or loss occurs in the extension cord
which reduces the effective voltage available for the appliance or tool.
The chart below has been prepared to illustrate the approximate voltage loss when
an extension cord of 300 feet (approx. 100 meters) is used to connect an
appliance or tool to the generator.
Nominal
cross
section
A.W.G.
Allowable
current
No.of strands
/ strands dia.
Resistance
Current Amp.
No./mm
Ω /100m
mm
2
No. A 1A 3A 5A 8A 10A 12A 15A
0.75 18 7 30/0.18 2.477 2.5V 8V 12.5V
─ ─ ─ ─
Voltage drop
1.27 16 12 50/0.16 1.486 1.5V 5V 7.5V 12V 15V 18V
─
2.0 14 17 37/0.26 0.952 1V 3V 5V 8V 10V 12V 15V
3.5 12 to 10 23 45/0.32 0.517
─
1.5V 2.5V 4V 5V 6.5V 7.5V
5.5 10 to 8 35 70/0.32 0.332
─
1V 2V 2.5V 3.5V 4V 5V
19