How much current can a 10 square power cord carry?

It depends on the laying method of the power cord, the safe current of the open wire is generally about 65A, and the maximum electrical power can be withstood within 10,000 watts; The safety current of dark wire laying is generally about 40A, and the maximum electrical power can be withstood within 7000 watts.

If it is a copper wire, it is recommended that it is less than 40A, and when it is below 40A, there will be no obvious heating, which has nothing to do with the wattage, only with the current and has nothing to do with the voltage.

Estimating mantra:

Multiply by nine at 2.5 and subtract one by one straight up.

Thirty-five times 3.5, double in a group minus five.

The conditions have been changed and converted, and the high-temperature nine-fold copper has been upgraded.

The number of pipe roots is two, three, four, eight, seven and six folds full of load current.

Note: (1) The current carrying capacity (safety current) of various insulated wires (rubber and plastic insulated wires) is not directly pointed out in this section, but is expressed by "multiplying the cross-section by a certain multiple", which is obtained through mental arithmetic. As can be seen from the mantra:

The multiplier decreases as the cross-section increases. "2.5 times nine, up minus one shun" refers to the aluminum core insulated wire of various sections and below, and its current carrying capacity is about 9 times the number of sections. As with a wire, the current carrying capacity is.

The relationship between the current carrying capacity and the number of cross-sections of the wire from 4mm' and above is to go up along the wire number, and the multiple is gradually reduced to L, that is, 4. "Thirty-five times three .five, double and double groups minus five", which means that the current carrying capacity of 35mm" wire is a multiple of the number of cross-sections, that is, 35 3 5 122 5 (a). From 50mm' and above wires, the multiple relationship between the current carrying capacity and the number of cross-sections is changed to two two wire numbers in a group, and the multiples are reduced in turn.

That is, the ampacity of the mm' wire is 3 times the number of cross-sections, and the current carrying capacity of the mm' wire is multiple of the number of its cross-sectional area, and so on. The conditions have been changed and converted, and the high-temperature nine-fold copper has been upgraded. The above formula is based on the aluminum core insulated wire and the open application at an ambient temperature of 25.

If the aluminum core insulated wire is laid in an area where the ambient temperature is higher than 25 for a long time, the current carrying capacity of the wire can be calculated according to the above formula calculation method, and then it can be discounted; When using not aluminum wire but copper core insulated wire, its current carrying capacity is slightly larger than that of aluminum wire of the same specification, and the current carrying capacity of one wire number can be calculated according to the above formula method. For example, the current carrying capacity of 16mm' copper wire can be calculated as 25mm2 aluminum wire.

A current of 10A can be in the form of copper wires squared or more.

Current Conversion Power:

1A 220W, 10A 2200W, and so on.

If the current carrying capacity of a copper wire is 14A, that is: 220W 14 3080W, then the power of the square copper wire is kilowatts.

Copper core wires allow long-term current:

square millimeters (16a, 25a).

4 mm² (25a 32a).

6 mm² (32a 40a).

Illustrate. 1. The power consumption of each computer is about 200 300W (about 1, then 10 computers need a square millimeter copper core wire for power supply, otherwise a fire may occur.

2. The power consumption of the large 3 hp air conditioner is about 3000W (about 14A), so 1 air conditioner needs a separate copper core wire of square millimeters for power supply.

3. The current housing incoming wire is generally 4 square millimeters of copper wire, therefore, the household appliances that are turned on at the same time shall not exceed 25A (that is, 5500 watts), and it is useless for someone to replace the wires in the house with 6 square millimeters of copper wire, because the wires entering the meter are 4 square millimeters.

10 square aluminum wire can withstand 64A current.

10 square aluminum wire, if used in single-phase electricity.

The single-phase electric voltage is 220V, and 10 square aluminum wire can withstand about kilowatts, and is used in three-phase electricity.

The voltage of the three-phase electricity is 380V, and the current of 10 square aluminum wire is 64A, which can withstand about kilowatts.

The difference between copper wire and aluminum wire.

Compared with copper wire, the density of aluminum wire is completely different, the density of aluminum wire is more than 2.00 points, and the density of copper wire can reach 9.00 points. Copper wire has a large unit current carrying capacity, if the same large safe current flows in the circuit, then the diameter of aluminum wire will be 1 2 times that of copper wire.

The diameter of copper wire is relatively small, it is relatively thin, while the diameter of aluminum wire is relatively large. These two kinds of wires are not particularly convenient to use, copper wire is more convenient when wiring, if you want to use aluminum wire, you need to use the conversion head to connect the copper and aluminum wires together, and the aluminum wire is easier to break, like we usually break it after a few folds, but the aluminum wire is relatively low, and the copper wire is higher than the aluminum wire.

The current carrying capacity of a 10 square millimeter copper wire is 65 amps.

The safe ampacities of the 10 square mm copper power cord are 65A.

Safe ampacities of 17A for 1 square millimeter copper power cord.

The safe ampacities of the square millimeter copper power cord are 21A.

The safe ampacity of the square millimeter copper power cord is 28A.

The safe ampacity of the 4 square mm copper power cord is 35A.

The safe ampacity of the 6 square mm copper power cord is 48A.

The safe ampacities of the 10 square mm copper power cord are 65A.

The safe ampacity of the 16 square mm copper power cord is 91A.

The safe current carrying capacity of the 25 square mm copper power cord is 120A.

The single-phase load is calculated per kilowatt and then the conductor is selected.

The standard for the safe use of 10 square copper wires at home is: if it is concealed, take 5a square. Surface-mounted 7A squared.

Then the 10 square copper wire surface-mounted current is 70A, and the power can be carried under the voltage of 220V: 15KW;

It is only 11kw when it is concealed, which is due to the fact that the line is laid in the wall, which affects the heat dissipation of the line.

The rough calculation method in the project is 5 times the number of squares, but the finer the higher it is allowed, remember the question of the electrician that year, the maximum allowable current of different cables is: 4 square millimeters 36a, 6 square millimeters 46a, 10 square millimeters 64a, 16 square millimeters 85a, 25 square millimeters 113a, 35 square millimeters 138a, 50 square millimeters 173a, 70 square millimeters 215a.

The general copper wire safety calculation method is:

1 square millimeter 10a

16a square millimeter

The safe ampacity of the square millimeter copper power cord is 28A.

The safe ampacity of the 4 square mm copper power cord is 35A.

The safe ampacity of the 6 square mm copper power cord is 48A.

The safe ampacities of the 10 square mm copper power cord are 65A.

The safe ampacity of the 16 square mm copper power cord is 91A.

The safe current carrying capacity of the 25 square mm copper power cord is 120A.

If it is an aluminum wire, the wire diameter should be times that of the copper wire.

If the copper wire current is less than 28A, it is definitely safe to take 10A per square millimeter.

If the copper wire current is greater than 120A, it will be taken as 5A per square millimeter.

The current that can pass through the cross-sectional area of the wire can be selected according to the total amount of current that needs to be conducted, and can generally be determined according to the following smooth slip:

Ten under five, one hundred on two, two five three, five five, five five, five five and a half times, copper wire upgrades.

Let me explain to you, it is an aluminum wire of less than 10 square meters, multiply the number of square millimeters by 5, if it is a copper wire, it will be upgraded by a gear, such as a square copper wire, it will be calculated according to 4 square meters. More than 100 are multiplied by 2 for the cross-sectional area, multiplied by 4 for those below 25 squares, multiplied by 3 for more than 35 squares, and multiplied by 95 squares.

The 10A current can be in the form of copper wires squared or more. The safe interception of the square copper wire is; The safe interception rate of 2 square copper wire is 18a; The safe interception of the square copper wire is; The safe interception rate of 4 square copper wire is 32A.

The longer the electric current passes through the body, the more serious the consequences. This is because the longer the time, the resistance of the human body decreases and the current increases. At the same time, every time the human heart contracts and expands, there is a time gap in between.

During this interval, the human body is most sensitive to the action of electric currents. Therefore, the longer the electric shock, the more times it coincides with this interval, and the greater the danger it poses.