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How thick are the wires for 220V, 4kw electrical appliances

many companies in the world have stopped the appearance or limited the amount of some materials contained in the materials. The wire thickness is determined by the passing current. According to the formula p=ui, the current i=p/u=4000/220=18.2a. If you want to be more reliable, choose bv4mm2 copper core wire. If you want to be more economical, choose bv2.5mm2 copper core wire.

the national standard gb4706.1 stipulates that the maximum working current of 1.0 square power line is 10a, that is, 2200 watt power. In fact, it mainly depends on the quality of wires. You also know the quality of domestic wires. Like the national standard wire, 1.5 square meters of copper wire can theoretically withstand 4.5 kW of electrical appliances, but this is the maximum withstand value, which generally cannot be so tight. Of course, it is no problem to use 3KW electrical appliances for a long time within 100 meters of the working distance 2 and lighting parts. When using 4kw electrical appliances, at least 2.5 square meters of national standard lines should be considered. If it's an enterprise standard or factory standard wire, it's not accurate. Let's understand the reasons for the error of the experimental machine and the precautions. The standard is different. At this time, it's the most safe to use 4 square meters

1.5 square meters --10a--220v 2200w

2.5 square meters --15a--220v 3300w

4 square meters --20a--220v 4400w

6 square meters --25a--220v 5500w

(Note: This is the minimum capacity, which is given in full consideration of the safety margin. In fact, the carrying capacity of wires greatly exceeds this capacity. For example, 2.5 square meters can carry 16A to 25A, the maximum of 4 square meters can be 32a, and the maximum of 6 square meters can be 40a)

use 4 square meters of national standard copper core wire. If it is more than 30 meters, it is recommended to use 6 square meters of copper core electricity.

don't use 2.5 square meters, which can be used in theory, but it can't meet the requirements in actual use. 4 kW electrical appliances must use 4 square meters of wire to be safe. If you use 2.5 square meters, it can also be used in a short time. If you use it for a long time, it has a large heating capacity and accelerates the aging of wires. In order to be safe, it is recommended to use 4 square meters of national standard copper core wire

the thickness of the wire is determined by the passing current. According to the formula p=ui, the current i=p/u=4000/220=18.2a. If you want to be more reliable, choose bv4mm2 copper core wire. If you want to be more economical, choose bv2.5mm2 copper core wire.

the national standard gb4706.1 stipulates that the maximum working current of 1.0 square power line is 10a, that is, 2200 watt power. In fact, it mainly depends on the quality of wires. You also know the quality of domestic wires. Like the national standard wire, 1.5 square meters of copper wire can theoretically withstand 4.5 kW of electrical appliances, but this is the maximum withstand value, which generally cannot be so tight. Of course, it is no problem to use 3KW electrical appliances for a long time within a working distance of 100 meters. When using 4kw electrical appliances, at least 2.5 square meters of national standard lines should be considered. If it is an enterprise standard or factory standard wire, it is not accurate. The standards produced by each factory are different. At this time, it is the safest to use 4 square meters

1.5 square meters --10a--220v 2200w

2.5 square meters --15a--220v 3300w

4 square meters --20a--220v 4400w

6 square meters --25a--220v 5500w

(Note: This is the minimum capacity, which is given in full consideration of the safety margin. In fact, the carrying capacity of wires greatly exceeds this capacity. For example, 2.5 square meters can carry 16A to 25A, the maximum of 4 square meters can be 32a, and the maximum of 6 square meters can be 40a)

use 4 square meters of national standard copper core wire. If it is more than 30 meters, it is recommended to use 6 square meters to cultivate 50 or so copper core electric money

don't use 2.5 square meters. The theory can be used, but the actual use can't meet the requirements. 4 kW electrical appliances must use 4 square meters of wire to be safe. If you use 2.5 square meters, it can also be used in a short time. If you use it for a long time, the heating capacity is large, and the aging of wires is accelerated. In order to be safe, it is recommended to use 4 square meters of national standard copper core wire

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