Electric equipment such as industrial goods lift, Electric lift stacker, and fixed scissor platforms need to be energized or charged. The power of the mechanical equipment is different, and the diameter of the selected power cord is different . But the calculation method of the required diameter of the power cord is the same .
The voltage drop of the copper core wire is related to its resistance, and its resistance calculation formula:
At 20°C: 17.5÷cross-sectional area (square millimeter) = resistance value per kilometer (Ω)
At 75℃: 21.7÷cross-sectional area (square millimeter) = resistance value per kilometer (Ω)
The pressure drop calculation formula (according to Ohm's law): V=R×A
The line loss is related to the voltage drop and current used.
The line loss calculation formula: P=V×AP-line loss power (watts) V-voltage drop value (volts) A-line current (amps)
2. Current calculation method of copper core wire power line
The safe current carrying capacity of 1 square millimeter copper power cord-17A.
The safe current carrying capacity of 1.5 square millimeter copper power cord-21A.
The safe current carrying capacity of the 2.5 square millimeter copper power cord-28A.
Safe current carrying capacity of 4 square millimeter copper power cord-35A
Safe current carrying capacity of 6 square millimeter copper power cord-48A
The safe current-carrying capacity of a 10 square millimeter copper power cord-65A.
The safe current carrying capacity of 16 square millimeter copper power cord-91A
The safe current carrying capacity of 25 square millimeter copper power cord-120A.
Single-phase load is 4.5A per kilowatt (COS&=1), and the wire is selected after calculating the current.
So, mechanical equipment such as freight elevators and electric reach stackers of different powers use different power cord diameters.
