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Check the "500 volt copper core insulated wire long-term continuous load allowable carrying capacity meter" to know: 16 square millimeters copper core wire can pass 98** current for a long time when the temperature is 30 degrees.
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The three-core copper wire of 240 should be able to drive 750 air conditioners, and this driving effect can also be directly driven, which can make him run better.
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Hello, 240 Samsung same-sex can not drive 750 also a year of zero air conditioning, this specific words you have to find an electrician to discuss how big the copper wire is.
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The air conditioner can be driven, of course, I personally choose to let you calculate it yourself through the formula, avoid and then take back the equipment.
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The 240 Samsung reproduction can drive 750 air conditioners.
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In this case, I think it is just enough to drive 750 air conditioners.
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240 Samsung copper wire, it is not able to drive 750 air conditioners, and its electric horsepower is not enough to support so many air conditioners.
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It is recommended to consult an electrician?
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Yes, 240 square meters of copper wire can drive so many air conditioners.
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A total of 750 horsepower air conditioners are about 600 kilowatts, and the three-phase power supply current is about 1200 amperes, so the three-phase live wire 380 volt power supply requires more than 1,000 square meters of three-core copper wire.
240 copper wire can only carry a current of less than 400 amperes, and cannot be used at all.
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It is a usable air conditioner, and this kind of air conditioner is completely sufficient, so you can use it with confidence.
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The power of five-horsepower air conditioning and refrigeration is generally less than 4,000 watts, and the power of heating and auxiliary electricity is generally about 10,000 watts.
The 16 square copper core wire can be sold with a bumper cover, no problem.
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This is only the rated withstand voltage, not the thickness of the power cord core.
The input power of refrigeration is generally about 1000 watts, and the power of heating and auxiliary power is generally about 2000 watts.
If it is a single-cooling air conditioner, you can also use a square copper core wire.
If you can't determine the size of the power cord, you can measure the diameter of the core, which can be referred to the following chart:
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How big is a single-core copper wire? Is it four square or six square?
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Hello! Known: l=4000m
S = 35 (copper) u = 380 220V
Copper resistivity. r=ρl/s=
Suppose: terminal voltage drop 3%=
According to Ohm's law, u=ir=i=u, r=
It can be considered as an estimate.
According to this calculation, each phase of 2 can bring a total of 6 air conditioners, and the voltage quality is also ***.
It only represents a personal opinion, don't spray if you don't like it, thank you.
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About 35 units, 35 square lines can meet the normal operation of 1300 watts of air conditioners is about 40 units, but the line distance is long, the line loss is large, that is, the normal operation of about 35 units is the most suitable.
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6mm2 copper wire can be brought.
For an air conditioner with a cooling capacity of 7500W, the actual input power is about the same. You can check the nameplate or instruction manual of the air conditioner. It can also be simply converted from the energy efficiency level of the air conditioner to the new energy efficiency standard (divided into 3 levels.
Integral air conditioner, first-class energy efficiency is greater than 7500.
The energy efficiency ratio of an air conditioner is the ratio of nominal cooling capacity (heating production) to operating power, i.e., EER and COP. The higher the energy efficiency ratio of the air conditioner, the more electricity will be saved, and the more money will be saved at home.
Wire Selection Method:
1. Calculate the working current of the air conditioner first
2270/220=10a
2. Estimate the cross-sectional area of the wire according to the current: the current carrying capacity of the wire with different cross-sectional areas can be found according to the electrician's manual, and the engineering is often estimated according to the empirical formula, 4-6a per square millimeter.
10 4= (mm 2) (here it is estimated according to the more conservative 4a) 3. Conclusion: Considering the surge of the air conditioner start, 6mm 2 is also sufficient.
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The principle of cable selection is [simple algorithm]:
For wires below 10mm2 (including 10mm2), multiply the cross-sectional area of the wire by 5 is the current carrying capacity of the cross-sectional wire.
The corresponding cross-sectional area of 100mm2 or more is multiplied by 2
16mm mm2 times 4
35mm mm2 times 3
70mm mm2 multiplied.
If the wire is multiplied by the coefficient of the pipe, the total cross-sectional area of the wire is not more than 40% of the cross-sectional area of the pipe) used in high-temperature places within the coefficient of Celsius).
The cross-sectional area of bare wire (such as overhead bare wire) is multiplied by the corresponding magnification and then multiplied by 2 (e.g., 16mm2 wire: 16*4*2).
The above is calculated based on the cross-sectional area of the aluminum wire.
Copper wire upgrade calculation means that the current carrying capacity of copper wire is equal to the current carrying capacity of aluminum wire, and so on.
The working current of 7500 watts of air conditioners is about 35 amps, and two air conditioners are about 70 amps!
The main power supply should be 16 square copper wires.
A single air conditioner can choose 6 square copper wires!
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35 square millimeters copper wire 4 km resistance is. Europe.
If the three-phase allowable line voltage drop is 20 volts 20 2 = 10 amps.
The power is about 1 kilowatt. Approximately ampere without power factor. Up to 6 units. If the power factor is calculated (calculated in terms of the rated current of the air conditioner), it will be less.
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Known: l=4000m s=35 (copper)u=380 220v copper resistivity r= l s= if: terminal voltage drop 3%= according to Ohm's law u=ir=i=u r= can be regarded as According to the estimate, according to this calculation, each phase of 2 can bring a total of 6 air conditioners, and the voltage quality is ***.
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