Baldor PC43RI, PC32RI manual Voltage Drop in Extension Cords

Voltage Drop in 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. Table 3-2illustrates 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.

Table 3-2 Voltage Drop in Electrical Extension Cords

Nominal

A.W.G.

Allowable

No.of strands

cross

Gauge

Resistance

Current Amp.

current

/ strands dia.

section

No.

mm 2

No.

A

No./mm

1A

3A

5A

8A

10A

12A

15A

Ω/100m

0.75

18

7

30/0.18

2.477

2.5V

8V

12.5V

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

Voltage

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

3-6 Receiving & Installation MN2403