Operation Manual
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5. WATTAGE INFORMATION
Some appliances need a “surge” of energy when starting.
This means that the amount of electrical power needed to start the appliance may exceed the amount needed to
maintain its use.
Electrical appliances and tools normally come with a label indicating voltage, cycles / Hz, amperage (amps) and
electrical power needed to run the appliance or tool.
Check with your nearest dealer or service center with questions regarding power surge of certain appliances or
power tools.
■
Electrical loads such as incandescent lamps and hot plates require the same wattage to start as is needed to
maintain use.
■
Loads such as fl uorescent lamps require 1.2 to 2 times the indicated wattage during start-up.
■
Loads for mercury lamps require 2 to 3 times the indicated wattage during start-up.
■
Electrical motors require a large starting current. Power requirements depend on the type of motor and its use.
Once enough “surge” is attained to start the motor,
the appliance will require only 50% to 30% of the wattage to continue running.
■
Most electrical tools require 1.2 to 3 times their wattage for running under load during use. For example, a
5,000 watt generator can power a 1800 to 4000 watt electrical tool.
■
Loads such as submersible pumps and air compressors require a very large force to start. They need 3 to 5
times the normal running wattage in order to start.
For example, a 5,000 watt generator would only be able to drive a 1,000 to 1,700 watt pump.
NOTE
The following wattage chart is general guide only. Refer to your specifi c appliance for correct wattage.
To determine the total wattage required to run a particular electrical appliance or tool, multiply the voltage fi gure of
the appliance/tool by the amperage (amps) fi gure of same. The voltage and amperage (amps) information can be
found on a name plate which is normally attached to electrical appliances and tools.
Applications
Applicable Wattage(W)
EG241A
EG321A
EG321AE
EG441A
EG441AE
EG601A
EG601AE
EG671A
EG671AE
Incandescent lamp, Heater 2000 2400 3600 4600 5500
Fluorescent lamp, Electric tool 1100 1300 2000 2550 3050
Mercury lamp 800 950 1450 1850 2200
Pump, Compressor 500 600 900 1150 1400
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.
mm
2
No. A No./mm
Ω
/100m 1A 3A 5A 8A 10A 12A 15A
Voltage drop
0.75 18 7 30/0.18 2.477 2.5V 8V
12.5V
────
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
EG671A_en_GU7034.indd 11 2010/05/26 10:22:22