The relationship between the thickness of the wire and the power of the appliance

For example, how many watts of electrical appliances can a square copper wire carry? What is the maximum wattage it can carry?

Relatedly, when the wire is made of the same material, the thicker the wire, the smaller the resistance, the better the conductivity, and the smaller the power loss. Thickness, in fact, refers to the number of wires, generally common 1 square millimeter (referred to as 1 square lift sedan potato.)5 square, 4 square, 6 square, refers to the cross-sectional area of the copper wire.

In general home decoration use, the more commonly used is the square and square wires.

Recommendations on the thickness of the wire, that is, the number of squares:

1. Ordinary lighting is enough. Since the wattage of ordinary lighting is not large, it is more suitable for the user.

2. General socket users. The electrical appliances on the socket may be larger than the wattage of the lights, and in general, we use the founder is more than enough.

3. 4 square meters for cabinet air conditioning. The power of the cabinet air conditioner is relatively large, and it is safer to use 4 squares; If it's hang-up, it's actually square and you can bring it up.

4. The main line of the kitchen is 4 squares, and the branch line is used. The kitchen mainly involves some electrical appliances with relatively large power, if it is a branch, the general square can still be driven, but for the main line, for the sake of safety, it is still recommended to use 4 squares.

5. The entrance line is 6 squares, and the entrance line is the main line of the whole family, and it is generally enough to use 6 squares.

The current is large, the wire is large, the current is small, and the wire is small. The relationship between wire and current is the first increase. The larger the diameter of the wire, the more current it can carry, and the size of the wire is directly proportional to the amount of current it can carry.

Relationship. Current = Power Voltage.

The current and the success rate are also proportional.

Therefore, the larger the wire diameter, the greater the power it can carry, and the size of the wire is proportional to the power it can carry. The current carrying capacity of the wire.

The magnitude of the current is related to the material of the wire, and it is arranged in order of silver, copper, aluminum, and iron. It is directly proportional to the cross-sectional area, inversely proportional to temperature, and inversely proportional to the length of the wire.

The cross-sectional area of the wire is proportional to the powerwith the resistivity of the wire.

There is a certain relationship, the current carrying capacity of the wire with high resistivity is small, and the power carried is also small. （

1. The thinner and longer the wire, the greater the resistance of the wire, the greater the power supply voltage loss, the lower the voltage at both ends of the electrical appliance, the smaller the current through the electrical appliance, the thicker the wire diameter, the shorter the distance, the higher the efficiency of power transmission; 2. The thicker the wire, the shorter the edge, the smaller the resistance of the wire, the smaller the voltage loss of the power supply, the higher the voltage at both ends of the electrical appliance, the greater the current through the electrical appliance, the thin wire diameter and the long distance, which will cause the line loss to increase, and the efficiency of power transmission will be reduced.

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Although the wire is small in size, it plays an important role in the circuit, it carries the transmission of current, and can effectively ensure the normal use of electricity, so when we choose wires, we must not only choose good quality wires, but also choose the right wires. What is the relationship between wire thickness and power? How to choose the number of wires?

Let's take these questions and take a look at the relevant content! The relationship between wire thickness and power is relatively speaking, the thinner the wire, the less power it can carry; The thicker the wire, the more power it can carry. For example, the power of the induction cooker is 1800 watts, and the current is, it is recommended to choose a square copper core wire, and if the power of the induction cooker reaches 4000 watts, it is recommended to choose a 4 square copper core wire.

The thickness of the wire refers to what is the thickness mentioned here, which indicates the number of squares of the wire, that is, the cross-sectional area of the conductor, which can be divided into square, square, 4 square, 6 square, etc., and the more common ones are square and square wires. If the two wires have the same number of squares, the thicker wire will have a stronger conductivity. (In the comparison of thickness, the thickness of the wire insulation layer cannot be calculated) how to choose the number of wires (1) The wires are suitable for ordinary parallel combustion lighting fixtures; (2) Square wires are suitable for small household appliances such as sockets and kettles; (3) The 4-square wire is suitable for high-power electrical appliances such as air conditioners and refrigerators; (4) The wire of 6 square meters is suitable for the entrance line; It is not recommended to install thick wires on all wires.

Some users think that "the thick wire, the greater the current it carries, in order to avoid the electrical tripping, only need to install all the thick wires at home." "But this understanding is wrong, if all the thick wires are installed in Zhaoye at home, it will not only increase the cost of materials, increase decoration expenses, but also cause waste of materials, in fact, a line pipe can be installed in the thick wire is limited. words:

Do the math how much it will cost you to renovate your home

When decorating, you need to arrange the wires at home reasonably, and many people are confused when choosing wires, and don't know whether to choose thick wires or thin wires, because the scope of application of these two wires is different, and it is also directly related to power consumption. Today, I will introduce to you which wires you need to choose for home improvement? What is the relationship between wire thickness and power consumption?

1. The relationship between wire thickness and power consumption.

1. The thicker the wire, the more energy-saving it is than the thin wire, which is mainly from a physical point of view, because the thinner wire, the greater its resistance value, which will lead to a higher load. When the power is on, it can generate a lot of heat, and it will consume more electricity. If the cross-sectional area of the wire is relatively small, the resistance value determines that it is relatively small, so the power consumption will be smaller.

2. Through the physical formula of resistance value, if the cross-sectional area of the wire is relatively small, the whole resistance value will be larger, when the cross-sectional area is larger, the resistance value will be smaller, the load will be smaller and smaller, and it will be more energy-saving in comparison.

Second, choose thick wires or thin wires for decoration.

1. When we choose, you have to consider the cost of decoration, and we should combine the advantages and disadvantages of the two wires. The amount of electricity used at home is relatively large, which adds up to a lot of expenses, and the thicker the wire, the more expensive it is, which will increase the cost of decoration. We can choose according to the needs, if the bathroom and kitchen have some appliances with relatively large power, you can choose the more coarse wires.

If it is an electrical appliance with relatively small power, as long as it meets the needs of lighting and electricity, you can choose thin wires, which is more reasonable.

2. Also consider the difficulty of construction, when decorating the home, first of all, the wire pipe should be pulled and buried in the wall. The thicker the wire, the more difficult it will be to install. If something goes wrong, it will be troublesome to repair.

Through the introduction, we should have a certain understanding of what is the relationship between thick wires and thin wires and power consumption, so I should choose wires reasonably.

The thickness of the wire has nothing to do with the voltage. Voltage acts as the reason for the formation of an electric current that pushes the charge to move directionally. The reason why the current is able to flow in the wire is also because of the difference between high and low potential in the current.

This kind of difference between grinding brothers is called potential difference, and it is also called voltage. In a circuit, the potential difference between any two points is called the voltage at those two points. The letter u is usually used to represent voltage.

I see a lot of electricians, in the choice of power cords, as long as they leave the "Electrician's Manual", they don't know how to do it, in fact, as long as they remember a few very simple formulas, these problems will be solved. When choosing the power cord of Heying, the power consumption of the equipment must be known, with this known condition, the formula of three-phase alternating current power is used to find the current, formula:

p (electric power) 3 380 (three-phase voltage) i (current) cos, in the formula cos is the reactive power loss of the inductive load, conservative to take the constant:

3 This is a minimum of mathematical common sense, and the current (i) is derived:

i p (power) 3 380, with the current, find the diameter of the power cord (note, this is the diameter of the wire, not the cross-sectional area, the specifications of the power cord are all expressed by the cross-sectional area). Wire Diameter Formula:

d, and then use the diameter of the wire to find the cross-sectional area of the wire, which is the mathematical formula: radius radius; Okay, that's it, the specifications of the power cord used have been found.

Quite simply, there are two formulas to remember, one:

P (electrical power) 3 380 (three-phase voltage) I (current) cos

Another formula: d.

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Knowing the power of electricity, but also to convert into the current pulse, you can choose the cross-sectional area of the wire, of course, you also need to know how far away the power supply is from the base, too far away the voltage drop is too large, no previous boring method of normal use.

According to the power of the equipment dissipation, the rated voltage is calculated as the rated current, and the rated current is taken before the nameplate of some equipment.

According to the current of the load current meter of the control cable, it is selected.

1. The cross-sectional area of the wire is proportional to the power of the void;

2. The power cord is the wire that transmits the current. Usually the way of current transmission is point-to-point transmission; Difference Tam.

3. Wire refers to the wire that transmits electrical energy. It is divided into bare wire, magnet wire and insulated wire. Bare wires are not insulated, including copper and aluminum flat wires, overhead stranded wires, and various profiles.