How big of cable is needed for 102 kW 380V

Based on this power, calculate the current at full load of this power.

102000 380, about 182a

According to the current-carrying capacity of the copper core wire, it is recommended to use 50 square meters and lay without sealing.

102 kW power current calculation:

Three-phase: p=p: power; u: voltage; i: current; COS: power factor, 1 for resistive load, 1 for inductive (such as motor) load;

Root number 3=i=p (

i=102/(

185A According to the wire current comparison table, at least 70 square copper core wires should be selected for 102kw load. The 70 square copper core wire is laid with a safe interception flow of about 247a.

When choosing a wire, pay attention to the following issues.

1) The type and cross-sectional area of the wire.

1) Select the appropriate wire type and size according to the use occasion and performance requirements of the wire.

2) Select the appropriate cross-sectional area of the wire according to the power of the electrical equipment.

3) The cross-sectional area of the general aluminum core wire or copper core wire can be roughly estimated according to the following formula:

Copper conductor = (sum of power of electrical equipment) (voltage (220V) times).

Aluminum core wire = (sum of power of electrical equipment) (voltage (220V) 5 times).

2) Selection of wire quality.

When considering the use of wires, it is necessary to choose products with the "CCC" mark, that is, the national compulsory wire quality 3C certification, the product must have a factory certificate, and the factory certificate generally includes items and contents: wire model, wire specifications, wire cross-sectional area, withstand voltage, wire length, inspector number, factory date and the implementation of national standards.

3) Characteristics of unqualified wire products.

Because unqualified wire products have a great advantage in **, there are some unscrupulous businesses that attract customers with shoddy and low-earning ***. However, there are many potential safety hazards in unqualified wire products. Learning to identify qualified wires is the foundation of electrical technology.

The quality defects of unqualified wire products generally have the following characteristics.

1) The cross-sectional area of the conductor is inconsistent with the nominal area, and the cross-sectional area is less than the nominal value. If this type of product is selected, the current carrying capacity of the wire will be reduced, and the temperature of the wire will increase.

2) The value does not match the standard value. The actual length of the wire is less than the standard length, so that on the surface, the wire is cheaper, but in fact it is more expensive.

3) The quality of the conductor material is unqualified. The copper content of the copper core wire does not meet the requirements, the conductivity is poor, and the resistance value is high, if this kind of product is selected, the current carrying capacity of the wire will be reduced, and the temperature of the wire will increase.

4) Poor quality of insulating materials. The poor quality of insulating materials is mainly manifested in insufficient insulation resistance and poor anti-aging performance. The easiest way to identify this is to look at it with the naked eye and touch it with your hands.

a.Direct inspection with the naked eye: The outer skin of the unqualified wire is compared with the outer skin of the qualified product, and there are phenomena such as color dirtiness, variegation, low gloss, and blackness.

b.Hand touch: The outer skin of the unqualified wire finished product is not smooth, and there is a phenomenon of sticky hands.

c.Gently wipe 10 times with a water-soaked cotton or cotton cloth, and then check the rubbing resistance of the mark with a self-test. The logo of qualified wire products is not easy to erase, and the logo of unqualified wire products is easy to fall off.

50 square meters of national standard copper wire within 100 meters, 100 meters or more to rise one level, 75 square meters.

50 square cables are sufficient.

90kw rated current.

i=p If it is close to Hehui (within a few tens of meters), the copper cable is 50 square millimeters.

Aluminum cable search such as 90 square millimeters.

If it is a long distance (a few hundred meters), the copper cable is 90 square millimeters and the aluminum cable is 150 square millimeters.

If it is between short and long distances, copper cables are 70 square millimeters and aluminum cables are 120 square millimeters.

If the distance is very short, you can use a 35 mm² copper cable from Shikai.

Summary. Hello dear and happy to answer for you. 380V, 220 kW need 230mm aluminum cable, 175mm copper cable.

It is obtained by the formula of the three-phase motor: p= so the rated current of the power of 220kw i=p cos is, and the voltage is 380v. I hope mine can help you and have a great day

How big of cable do you need for 380v, 220 kW???

Hello dear and happy to answer for you. 380V, 220 kW need 230mm aluminum cable, 175mm copper cable. It is obtained from the formula of three-phase motor:

P= So the rated current of 220KW I=P Cos is, and the voltage is 380V. I hope mine can help you and have a great day

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Based on the information you provided, I think the cable size required for 380v100 kW should be at least 35 square millimeters. This is because the size of the cable depends on the current and distance, while a 100 kW load requires about 144 amperes, while a voltage of 380V requires the use of a three-phase cable, so it needs to be multiplied by the barrage or root number 3). According to the cable capacity table, a current of 144 amps requires at least 35 square millimeters of cable.

In addition, it is important to note that the length of the cable also affects its size. If the length of the cable is very long, then a larger cable is required to reduce the cable resistance and voltage drop. Therefore, in practical applications, the cable size needs to be selected according to the specific situation.

Off-topic expansion: In addition to the size of the cable, the material and quality of the cable also need to be considered. High-quality cables can reduce resistance and voltage drop, improve power transmission efficiency, and also improve the safety and reliability of cables.

Therefore, when choosing a cable, it is necessary to choose a high-quality cable that meets the standards, and pay attention to the protection and maintenance of the cable during installation and use.

12 kW 380V requires 4 square wires. If the three-phase voltage is 380 volts, it is estimated that the load current of 12 kW is about 24 A according to the estimation of 2A kW. The use of 4 square copper wire can be used to meet the use conditions.

Code Meaning1. Category, use code:

a-Installation line; b-insulated wire; c-Marine cable; k-control cable; n-Agricultural cables; r-Cord; u-Mining cable; Y-mobile cable; JK-insulated overhead cable; m-For coal mines; ZR-flame retardant type; NH - Refractory type; Class ZA-A flame retardant; ZB-B flame retardant; ZC-C flame retardant; WD - Low Smoke Halogen Free Type.

2. Conductor material:

L-Aluminum; T-copper nucleus.

3. Types of insulating senxiao:

V-polyvinyl chloride; x-rubber; y-polyethylene; YJ-cross-linked polyethylene; z-oil-impregnated paper.

How big a cable does 120 kilowatts need to use, which is 380 electricity.

How big of a cable should be used for 120 kilowatts, which is 380 electricity: If 120 kilowatts are used with 70 square copper core cables, 380 electricity can be used with 70 square copper core cables, or 95 square meters of aluminum core electric first volt cables. 1. Civil electricity, 120kw, three-phase four-wire, 35 square meters of cable required for rolling land.

120000 3 380 = 105a, 105 3 = 35 mm2, three-phase four-wire is the total current of 1 3 per large celery wire. 3,120kw power requires 120 150A.