Wire Gauge Required Question
For some reason I just can't understand the various wire gauge tables, and I have tried to, so I am hoping somebody will take pity and do all the work! :) One table that I can follow says that for...
Forum Discussion
Hi BFL13,
Solution:
1 conductor(s) per phase utilizing a 6 kcmil Copper conductor will limit the voltage drop to 0.88% or less when supplying 8 amps for 30 feet on a 24 volt system.
For Engineering Information:
55 Amps Rated ampacity of selected conductor
0.4662 Ohms Resistance (Ohms per 1000 feet)
0.051 Ohms Reactance (Ohms per 1000 feet)
0.24 volts maximum allowable voltage drop at 1%
0.21 Actual voltage drop loss at 0.88% for the circuit
0.9 Power Factor
From: http://www.liteco.ca/Portals/_Rainbow/images/default/Tools/Southwire/voltagedropcalculator.htm
If you can live with 1.32% voltage drop #8 wire gives:
Solution:
1 conductor(s) per phase utilizing a 8 AWG Copper conductor will limit the voltage drop to 1.32% or less when supplying 7.67 amps for 30 feet on a 24 volt system.
For Engineering Information:
40 Amps Rated ampacity of selected conductor
0.7421 Ohms Resistance (Ohms per 1000 feet)
0.052 Ohms Reactance (Ohms per 1000 feet)
0.48 volts maximum allowable voltage drop at 2%
0.32 Actual voltage drop loss at 1.32% for the circuit
0.9 Power Factor
Solution:
1 conductor(s) per phase utilizing a 6 kcmil Copper conductor will limit the voltage drop to 0.88% or less when supplying 8 amps for 30 feet on a 24 volt system.
For Engineering Information:
55 Amps Rated ampacity of selected conductor
0.4662 Ohms Resistance (Ohms per 1000 feet)
0.051 Ohms Reactance (Ohms per 1000 feet)
0.24 volts maximum allowable voltage drop at 1%
0.21 Actual voltage drop loss at 0.88% for the circuit
0.9 Power Factor
From: http://www.liteco.ca/Portals/_Rainbow/images/default/Tools/Southwire/voltagedropcalculator.htm
If you can live with 1.32% voltage drop #8 wire gives:
Solution:
1 conductor(s) per phase utilizing a 8 AWG Copper conductor will limit the voltage drop to 1.32% or less when supplying 7.67 amps for 30 feet on a 24 volt system.
For Engineering Information:
40 Amps Rated ampacity of selected conductor
0.7421 Ohms Resistance (Ohms per 1000 feet)
0.052 Ohms Reactance (Ohms per 1000 feet)
0.48 volts maximum allowable voltage drop at 2%
0.32 Actual voltage drop loss at 1.32% for the circuit
0.9 Power Factor
