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Wattage Information; Voltage Drop In Electric Extension Cords - Dolmar GE-1100 Bedienungsanleitung

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6. 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
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needed to maintain use.
Loads such as fluorescent lamps require 1.2 to 2 times the indicated wattage during start-up.
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Loads for mercury lamps require 2 to 3 times the indicated wattage during start-up.
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Electrical motors require a large starting current. Power requirements depend on the type of motor and
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its use. Once enough "surge" is attained to start the motor, the appliance will require only 50% to 30%
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of the wattage to continue running.
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Most electrical tools require 1.2 to 3 times their wattage for running under load during use. For example,
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a 5000 watt generator can power a 1800 to 4000 watt electrical tool.
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Loads such as submersible pumps and air compressors require a very large force to start. They need 3
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to 5 times the normal running wattage in order to start.
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For example, a 5000 watt generator would only be able to drive a 1000 to 1700 watt pump.
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NOTE
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The following wattage chart is general guide only. Refer to your specific appliance for
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correct wattage.
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To determine the total wattage required to run a
particular electrical appliance or tool, multiply the
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voltage figure of the appliance/tool by the amperage
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(amps) figure of same. The voltage and amperage
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(amps) information can be found on a name plate
which is normally attached to electrical appliances
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and tools.

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
A.W.G.
section
mm
No.
2
0.75
18
1.27
16
2.0
14
3.5
12 to 10
5.5
10 to 8
10
Allowable
No.of strands
Resistance
current
/ strands dia.
A
No./mm
Ω/100m
7
30/0.18
12
50/0.16
17
37/0.26
23
45/0.32
35
70/0.32
Applications
Incandescent lamp, Heater
Fluorescent lamp, Electric tool
Mercury lamp
Pump, Compressor
Current Amp.
1A
3A
5A
2.477
2.5V 8V 12.5V ─
1.486
1.5V 5V 7.5V 12V 15V 18V
0.952
1V
3V
5V
0.517
─ 1.5V 2.5V 4V
0.332
1V
2V 2.5V 3.5V 4V
Applicable Wattage (approx. W)
50 Hz
700
350
250
150
8A
10A 12A 15A
8V
10V 12V 15V
5V 6.5V 7.5V
5V

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